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| 79 | SUMMARY: <A HREF="#nested_classes_inherited_from_class_org.apache.hadoop.conf.Configuration">NESTED</A> | <A HREF="#field_summary">FIELD</A> | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD> |
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| 89 | <H2> |
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| 90 | <FONT SIZE="-1"> |
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| 91 | org.apache.hadoop.mapred</FONT> |
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| 92 | <BR> |
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| 93 | Class JobConf</H2> |
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| 94 | <PRE> |
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| 95 | <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</A> |
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| 96 | <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../../org/apache/hadoop/conf/Configuration.html" title="class in org.apache.hadoop.conf">org.apache.hadoop.conf.Configuration</A> |
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| 97 | <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><B>org.apache.hadoop.mapred.JobConf</B> |
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| 98 | </PRE> |
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| 99 | <DL> |
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| 100 | <DT><B>All Implemented Interfaces:</B> <DD><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Iterable.html?is-external=true" title="class or interface in java.lang">Iterable</A><<A HREF="http://java.sun.com/javase/6/docs/api/java/util/Map.Entry.html?is-external=true" title="class or interface in java.util">Map.Entry</A><<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>,<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>>>, <A HREF="../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A></DD> |
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| 101 | </DL> |
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| 102 | <HR> |
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| 103 | <B>Deprecated.</B> <I>Use <A HREF="../../../../org/apache/hadoop/conf/Configuration.html" title="class in org.apache.hadoop.conf"><CODE>Configuration</CODE></A> instead</I> |
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| 104 | <P> |
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| 105 | <DL> |
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| 106 | <DT><PRE><FONT SIZE="-1"><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Deprecated.html?is-external=true" title="class or interface in java.lang">@Deprecated</A> |
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| 107 | </FONT>public class <B>JobConf</B><DT>extends <A HREF="../../../../org/apache/hadoop/conf/Configuration.html" title="class in org.apache.hadoop.conf">Configuration</A></DL> |
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| 108 | </PRE> |
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| 109 | |
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| 110 | <P> |
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| 111 | A map/reduce job configuration. |
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| 112 | |
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| 113 | <p><code>JobConf</code> is the primary interface for a user to describe a |
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| 114 | map-reduce job to the Hadoop framework for execution. The framework tries to |
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| 115 | faithfully execute the job as-is described by <code>JobConf</code>, however: |
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| 116 | <ol> |
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| 117 | <li> |
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| 118 | Some configuration parameters might have been marked as |
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| 119 | <a href="../../../../org/apache/hadoop/conf/Configuration.html#FinalParams"> |
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| 120 | final</a> by administrators and hence cannot be altered. |
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| 121 | </li> |
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| 122 | <li> |
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| 123 | While some job parameters are straight-forward to set |
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| 124 | (e.g. <A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setNumReduceTasks(int)"><CODE>setNumReduceTasks(int)</CODE></A>), some parameters interact subtly |
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| 125 | rest of the framework and/or job-configuration and is relatively more |
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| 126 | complex for the user to control finely (e.g. <A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setNumMapTasks(int)"><CODE>setNumMapTasks(int)</CODE></A>). |
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| 127 | </li> |
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| 128 | </ol></p> |
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| 129 | |
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| 130 | <p><code>JobConf</code> typically specifies the <A HREF="../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred"><CODE>Mapper</CODE></A>, combiner |
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| 131 | (if any), <A HREF="../../../../org/apache/hadoop/mapred/Partitioner.html" title="interface in org.apache.hadoop.mapred"><CODE>Partitioner</CODE></A>, <A HREF="../../../../org/apache/hadoop/mapred/Reducer.html" title="interface in org.apache.hadoop.mapred"><CODE>Reducer</CODE></A>, <A HREF="../../../../org/apache/hadoop/mapred/InputFormat.html" title="interface in org.apache.hadoop.mapred"><CODE>InputFormat</CODE></A> and |
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| 132 | <A HREF="../../../../org/apache/hadoop/mapred/OutputFormat.html" title="interface in org.apache.hadoop.mapred"><CODE>OutputFormat</CODE></A> implementations to be used etc. |
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| 133 | |
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| 134 | <p>Optionally <code>JobConf</code> is used to specify other advanced facets |
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| 135 | of the job such as <code>Comparator</code>s to be used, files to be put in |
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| 136 | the <A HREF="../../../../org/apache/hadoop/filecache/DistributedCache.html" title="class in org.apache.hadoop.filecache"><CODE>DistributedCache</CODE></A>, whether or not intermediate and/or job outputs |
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| 137 | are to be compressed (and how), debugability via user-provided scripts |
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| 138 | ( <A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setMapDebugScript(java.lang.String)"><CODE>setMapDebugScript(String)</CODE></A>/<A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setReduceDebugScript(java.lang.String)"><CODE>setReduceDebugScript(String)</CODE></A>), |
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| 139 | for doing post-processing on task logs, task's stdout, stderr, syslog. |
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| 140 | and etc.</p> |
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| 141 | |
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| 142 | <p>Here is an example on how to configure a job via <code>JobConf</code>:</p> |
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| 143 | <p><blockquote><pre> |
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| 144 | // Create a new JobConf |
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| 145 | JobConf job = new JobConf(new Configuration(), MyJob.class); |
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| 146 | |
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| 147 | // Specify various job-specific parameters |
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| 148 | job.setJobName("myjob"); |
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| 149 | |
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| 150 | FileInputFormat.setInputPaths(job, new Path("in")); |
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| 151 | FileOutputFormat.setOutputPath(job, new Path("out")); |
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| 152 | |
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| 153 | job.setMapperClass(MyJob.MyMapper.class); |
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| 154 | job.setCombinerClass(MyJob.MyReducer.class); |
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| 155 | job.setReducerClass(MyJob.MyReducer.class); |
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| 156 | |
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| 157 | job.setInputFormat(SequenceFileInputFormat.class); |
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| 158 | job.setOutputFormat(SequenceFileOutputFormat.class); |
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| 159 | </pre></blockquote></p> |
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| 160 | <P> |
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| 161 | |
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| 162 | <P> |
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| 163 | <DL> |
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| 164 | <DT><B>See Also:</B><DD><A HREF="../../../../org/apache/hadoop/mapred/JobClient.html" title="class in org.apache.hadoop.mapred"><CODE>JobClient</CODE></A>, |
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| 165 | <A HREF="../../../../org/apache/hadoop/mapred/ClusterStatus.html" title="class in org.apache.hadoop.mapred"><CODE>ClusterStatus</CODE></A>, |
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| 166 | <A HREF="../../../../org/apache/hadoop/util/Tool.html" title="interface in org.apache.hadoop.util"><CODE>Tool</CODE></A>, |
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| 167 | <A HREF="../../../../org/apache/hadoop/filecache/DistributedCache.html" title="class in org.apache.hadoop.filecache"><CODE>DistributedCache</CODE></A></DL> |
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| 168 | <HR> |
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| 169 | |
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| 170 | <P> |
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| 171 | <!-- ======== NESTED CLASS SUMMARY ======== --> |
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| 172 | |
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| 173 | <A NAME="nested_class_summary"><!-- --></A> |
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| 174 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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| 175 | <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
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| 176 | <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> |
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| 177 | <B>Nested Class Summary</B></FONT></TH> |
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| 178 | </TR> |
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| 179 | </TABLE> |
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| 180 | <A NAME="nested_classes_inherited_from_class_org.apache.hadoop.conf.Configuration"><!-- --></A> |
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| 181 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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| 182 | <TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"> |
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| 183 | <TH ALIGN="left"><B>Nested classes/interfaces inherited from class org.apache.hadoop.conf.<A HREF="../../../../org/apache/hadoop/conf/Configuration.html" title="class in org.apache.hadoop.conf">Configuration</A></B></TH> |
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| 184 | </TR> |
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| 185 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 186 | <TD><CODE><A HREF="../../../../org/apache/hadoop/conf/Configuration.IntegerRanges.html" title="class in org.apache.hadoop.conf">Configuration.IntegerRanges</A></CODE></TD> |
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| 187 | </TR> |
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| 188 | </TABLE> |
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| 189 | |
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| 190 | <!-- =========== FIELD SUMMARY =========== --> |
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| 191 | |
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| 192 | <A NAME="field_summary"><!-- --></A> |
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| 193 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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| 194 | <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
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| 195 | <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> |
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| 196 | <B>Field Summary</B></FONT></TH> |
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| 197 | </TR> |
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| 198 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 199 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 200 | <CODE>static <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD> |
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| 201 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#DEFAULT_QUEUE_NAME">DEFAULT_QUEUE_NAME</A></B></CODE> |
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| 202 | |
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| 203 | <BR> |
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| 204 | <B>Deprecated.</B> Name of the queue to which jobs will be submitted, if no queue |
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| 205 | name is mentioned.</TD> |
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| 206 | </TR> |
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| 207 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 208 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 209 | <CODE>static long</CODE></FONT></TD> |
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| 210 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#DISABLED_MEMORY_LIMIT">DISABLED_MEMORY_LIMIT</A></B></CODE> |
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| 211 | |
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| 212 | <BR> |
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| 213 | <B>Deprecated.</B> A value which if set for memory related configuration options, |
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| 214 | indicates that the options are turned off.</TD> |
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| 215 | </TR> |
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| 216 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 217 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 218 | <CODE>static <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD> |
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| 219 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#MAPRED_TASK_DEFAULT_MAXVMEM_PROPERTY">MAPRED_TASK_DEFAULT_MAXVMEM_PROPERTY</A></B></CODE> |
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| 220 | |
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| 221 | <BR> |
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| 222 | <B>Deprecated.</B> <I></I> </TD> |
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| 223 | </TR> |
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| 224 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 225 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 226 | <CODE>static <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD> |
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| 227 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#MAPRED_TASK_MAXPMEM_PROPERTY">MAPRED_TASK_MAXPMEM_PROPERTY</A></B></CODE> |
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| 228 | |
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| 229 | <BR> |
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| 230 | <B>Deprecated.</B> <I></I> </TD> |
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| 231 | </TR> |
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| 232 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 233 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 234 | <CODE>static <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD> |
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| 235 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#MAPRED_TASK_MAXVMEM_PROPERTY">MAPRED_TASK_MAXVMEM_PROPERTY</A></B></CODE> |
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| 236 | |
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| 237 | <BR> |
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| 238 | <B>Deprecated.</B> <I></I> </TD> |
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| 239 | </TR> |
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| 240 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 241 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 242 | <CODE>static <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD> |
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| 243 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#UPPER_LIMIT_ON_TASK_VMEM_PROPERTY">UPPER_LIMIT_ON_TASK_VMEM_PROPERTY</A></B></CODE> |
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| 244 | |
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| 245 | <BR> |
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| 246 | <B>Deprecated.</B> <I></I> </TD> |
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| 247 | </TR> |
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| 248 | </TABLE> |
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| 249 | |
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| 250 | <!-- ======== CONSTRUCTOR SUMMARY ======== --> |
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| 251 | |
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| 252 | <A NAME="constructor_summary"><!-- --></A> |
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| 253 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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| 254 | <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
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| 255 | <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> |
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| 256 | <B>Constructor Summary</B></FONT></TH> |
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| 257 | </TR> |
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| 258 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 259 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#JobConf()">JobConf</A></B>()</CODE> |
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| 260 | |
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| 261 | <BR> |
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| 262 | <B>Deprecated.</B> Construct a map/reduce job configuration.</TD> |
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| 263 | </TR> |
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| 264 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 265 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#JobConf(boolean)">JobConf</A></B>(boolean loadDefaults)</CODE> |
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| 266 | |
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| 267 | <BR> |
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| 268 | <B>Deprecated.</B> A new map/reduce configuration where the behavior of reading from the |
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| 269 | default resources can be turned off.</TD> |
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| 270 | </TR> |
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| 271 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 272 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#JobConf(java.lang.Class)">JobConf</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A> exampleClass)</CODE> |
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| 273 | |
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| 274 | <BR> |
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| 275 | <B>Deprecated.</B> Construct a map/reduce job configuration.</TD> |
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| 276 | </TR> |
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| 277 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 278 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#JobConf(org.apache.hadoop.conf.Configuration)">JobConf</A></B>(<A HREF="../../../../org/apache/hadoop/conf/Configuration.html" title="class in org.apache.hadoop.conf">Configuration</A> conf)</CODE> |
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| 279 | |
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| 280 | <BR> |
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| 281 | <B>Deprecated.</B> Construct a map/reduce job configuration.</TD> |
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| 282 | </TR> |
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| 283 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 284 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#JobConf(org.apache.hadoop.conf.Configuration, java.lang.Class)">JobConf</A></B>(<A HREF="../../../../org/apache/hadoop/conf/Configuration.html" title="class in org.apache.hadoop.conf">Configuration</A> conf, |
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| 285 | <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A> exampleClass)</CODE> |
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| 286 | |
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| 287 | <BR> |
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| 288 | <B>Deprecated.</B> Construct a map/reduce job configuration.</TD> |
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| 289 | </TR> |
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| 290 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 291 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#JobConf(org.apache.hadoop.fs.Path)">JobConf</A></B>(<A HREF="../../../../org/apache/hadoop/fs/Path.html" title="class in org.apache.hadoop.fs">Path</A> config)</CODE> |
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| 292 | |
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| 293 | <BR> |
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| 294 | <B>Deprecated.</B> Construct a map/reduce configuration.</TD> |
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| 295 | </TR> |
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| 296 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 297 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#JobConf(java.lang.String)">JobConf</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> config)</CODE> |
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| 298 | |
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| 299 | <BR> |
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| 300 | <B>Deprecated.</B> Construct a map/reduce configuration.</TD> |
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| 301 | </TR> |
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| 302 | </TABLE> |
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| 303 | |
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| 304 | <!-- ========== METHOD SUMMARY =========== --> |
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| 305 | |
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| 306 | <A NAME="method_summary"><!-- --></A> |
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| 307 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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| 308 | <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
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| 309 | <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> |
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| 310 | <B>Method Summary</B></FONT></TH> |
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| 311 | </TR> |
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| 312 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 313 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 314 | <CODE> void</CODE></FONT></TD> |
---|
| 315 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#deleteLocalFiles()">deleteLocalFiles</A></B>()</CODE> |
---|
| 316 | |
---|
| 317 | <BR> |
---|
| 318 | <B>Deprecated.</B> </TD> |
---|
| 319 | </TR> |
---|
| 320 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 321 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 322 | <CODE> void</CODE></FONT></TD> |
---|
| 323 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#deleteLocalFiles(java.lang.String)">deleteLocalFiles</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> subdir)</CODE> |
---|
| 324 | |
---|
| 325 | <BR> |
---|
| 326 | <B>Deprecated.</B> </TD> |
---|
| 327 | </TR> |
---|
| 328 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 329 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 330 | <CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends <A HREF="../../../../org/apache/hadoop/mapred/Reducer.html" title="interface in org.apache.hadoop.mapred">Reducer</A>></CODE></FONT></TD> |
---|
| 331 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getCombinerClass()">getCombinerClass</A></B>()</CODE> |
---|
| 332 | |
---|
| 333 | <BR> |
---|
| 334 | <B>Deprecated.</B> Get the user-defined <i>combiner</i> class used to combine map-outputs |
---|
| 335 | before being sent to the reducers.</TD> |
---|
| 336 | </TR> |
---|
| 337 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 338 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 339 | <CODE> boolean</CODE></FONT></TD> |
---|
| 340 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getCompressMapOutput()">getCompressMapOutput</A></B>()</CODE> |
---|
| 341 | |
---|
| 342 | <BR> |
---|
| 343 | <B>Deprecated.</B> Are the outputs of the maps be compressed?</TD> |
---|
| 344 | </TR> |
---|
| 345 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 346 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 347 | <CODE> <A HREF="../../../../org/apache/hadoop/mapred/InputFormat.html" title="interface in org.apache.hadoop.mapred">InputFormat</A></CODE></FONT></TD> |
---|
| 348 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getInputFormat()">getInputFormat</A></B>()</CODE> |
---|
| 349 | |
---|
| 350 | <BR> |
---|
| 351 | <B>Deprecated.</B> Get the <A HREF="../../../../org/apache/hadoop/mapred/InputFormat.html" title="interface in org.apache.hadoop.mapred"><CODE>InputFormat</CODE></A> implementation for the map-reduce job, |
---|
| 352 | defaults to <A HREF="../../../../org/apache/hadoop/mapred/TextInputFormat.html" title="class in org.apache.hadoop.mapred"><CODE>TextInputFormat</CODE></A> if not specified explicity.</TD> |
---|
| 353 | </TR> |
---|
| 354 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 355 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 356 | <CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD> |
---|
| 357 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getJar()">getJar</A></B>()</CODE> |
---|
| 358 | |
---|
| 359 | <BR> |
---|
| 360 | <B>Deprecated.</B> Get the user jar for the map-reduce job.</TD> |
---|
| 361 | </TR> |
---|
| 362 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 363 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 364 | <CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD> |
---|
| 365 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getJobEndNotificationURI()">getJobEndNotificationURI</A></B>()</CODE> |
---|
| 366 | |
---|
| 367 | <BR> |
---|
| 368 | <B>Deprecated.</B> Get the uri to be invoked in-order to send a notification after the job |
---|
| 369 | has completed (success/failure).</TD> |
---|
| 370 | </TR> |
---|
| 371 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 372 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 373 | <CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD> |
---|
| 374 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getJobLocalDir()">getJobLocalDir</A></B>()</CODE> |
---|
| 375 | |
---|
| 376 | <BR> |
---|
| 377 | <B>Deprecated.</B> Get job-specific shared directory for use as scratch space</TD> |
---|
| 378 | </TR> |
---|
| 379 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 380 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 381 | <CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD> |
---|
| 382 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getJobName()">getJobName</A></B>()</CODE> |
---|
| 383 | |
---|
| 384 | <BR> |
---|
| 385 | <B>Deprecated.</B> Get the user-specified job name.</TD> |
---|
| 386 | </TR> |
---|
| 387 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 388 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 389 | <CODE> <A HREF="../../../../org/apache/hadoop/mapred/JobPriority.html" title="enum in org.apache.hadoop.mapred">JobPriority</A></CODE></FONT></TD> |
---|
| 390 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getJobPriority()">getJobPriority</A></B>()</CODE> |
---|
| 391 | |
---|
| 392 | <BR> |
---|
| 393 | <B>Deprecated.</B> Get the <A HREF="../../../../org/apache/hadoop/mapred/JobPriority.html" title="enum in org.apache.hadoop.mapred"><CODE>JobPriority</CODE></A> for this job.</TD> |
---|
| 394 | </TR> |
---|
| 395 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 396 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 397 | <CODE> boolean</CODE></FONT></TD> |
---|
| 398 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getKeepFailedTaskFiles()">getKeepFailedTaskFiles</A></B>()</CODE> |
---|
| 399 | |
---|
| 400 | <BR> |
---|
| 401 | <B>Deprecated.</B> Should the temporary files for failed tasks be kept?</TD> |
---|
| 402 | </TR> |
---|
| 403 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 404 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 405 | <CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD> |
---|
| 406 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getKeepTaskFilesPattern()">getKeepTaskFilesPattern</A></B>()</CODE> |
---|
| 407 | |
---|
| 408 | <BR> |
---|
| 409 | <B>Deprecated.</B> Get the regular expression that is matched against the task names |
---|
| 410 | to see if we need to keep the files.</TD> |
---|
| 411 | </TR> |
---|
| 412 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 413 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 414 | <CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD> |
---|
| 415 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getKeyFieldComparatorOption()">getKeyFieldComparatorOption</A></B>()</CODE> |
---|
| 416 | |
---|
| 417 | <BR> |
---|
| 418 | <B>Deprecated.</B> Get the <A HREF="../../../../org/apache/hadoop/mapred/lib/KeyFieldBasedComparator.html" title="class in org.apache.hadoop.mapred.lib"><CODE>KeyFieldBasedComparator</CODE></A> options</TD> |
---|
| 419 | </TR> |
---|
| 420 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 421 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 422 | <CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD> |
---|
| 423 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getKeyFieldPartitionerOption()">getKeyFieldPartitionerOption</A></B>()</CODE> |
---|
| 424 | |
---|
| 425 | <BR> |
---|
| 426 | <B>Deprecated.</B> Get the <A HREF="../../../../org/apache/hadoop/mapred/lib/KeyFieldBasedPartitioner.html" title="class in org.apache.hadoop.mapred.lib"><CODE>KeyFieldBasedPartitioner</CODE></A> options</TD> |
---|
| 427 | </TR> |
---|
| 428 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 429 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 430 | <CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>[]</CODE></FONT></TD> |
---|
| 431 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getLocalDirs()">getLocalDirs</A></B>()</CODE> |
---|
| 432 | |
---|
| 433 | <BR> |
---|
| 434 | <B>Deprecated.</B> </TD> |
---|
| 435 | </TR> |
---|
| 436 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 437 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 438 | <CODE> <A HREF="../../../../org/apache/hadoop/fs/Path.html" title="class in org.apache.hadoop.fs">Path</A></CODE></FONT></TD> |
---|
| 439 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getLocalPath(java.lang.String)">getLocalPath</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> pathString)</CODE> |
---|
| 440 | |
---|
| 441 | <BR> |
---|
| 442 | <B>Deprecated.</B> Constructs a local file name.</TD> |
---|
| 443 | </TR> |
---|
| 444 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 445 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 446 | <CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD> |
---|
| 447 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getMapDebugScript()">getMapDebugScript</A></B>()</CODE> |
---|
| 448 | |
---|
| 449 | <BR> |
---|
| 450 | <B>Deprecated.</B> Get the map task's debug script.</TD> |
---|
| 451 | </TR> |
---|
| 452 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 453 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 454 | <CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends <A HREF="../../../../org/apache/hadoop/io/compress/CompressionCodec.html" title="interface in org.apache.hadoop.io.compress">CompressionCodec</A>></CODE></FONT></TD> |
---|
| 455 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getMapOutputCompressorClass(java.lang.Class)">getMapOutputCompressorClass</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends <A HREF="../../../../org/apache/hadoop/io/compress/CompressionCodec.html" title="interface in org.apache.hadoop.io.compress">CompressionCodec</A>> defaultValue)</CODE> |
---|
| 456 | |
---|
| 457 | <BR> |
---|
| 458 | <B>Deprecated.</B> Get the <A HREF="../../../../org/apache/hadoop/io/compress/CompressionCodec.html" title="interface in org.apache.hadoop.io.compress"><CODE>CompressionCodec</CODE></A> for compressing the map outputs.</TD> |
---|
| 459 | </TR> |
---|
| 460 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 461 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 462 | <CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><?></CODE></FONT></TD> |
---|
| 463 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getMapOutputKeyClass()">getMapOutputKeyClass</A></B>()</CODE> |
---|
| 464 | |
---|
| 465 | <BR> |
---|
| 466 | <B>Deprecated.</B> Get the key class for the map output data.</TD> |
---|
| 467 | </TR> |
---|
| 468 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 469 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 470 | <CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><?></CODE></FONT></TD> |
---|
| 471 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getMapOutputValueClass()">getMapOutputValueClass</A></B>()</CODE> |
---|
| 472 | |
---|
| 473 | <BR> |
---|
| 474 | <B>Deprecated.</B> Get the value class for the map output data.</TD> |
---|
| 475 | </TR> |
---|
| 476 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 477 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 478 | <CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends <A HREF="../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred">Mapper</A>></CODE></FONT></TD> |
---|
| 479 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getMapperClass()">getMapperClass</A></B>()</CODE> |
---|
| 480 | |
---|
| 481 | <BR> |
---|
| 482 | <B>Deprecated.</B> Get the <A HREF="../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred"><CODE>Mapper</CODE></A> class for the job.</TD> |
---|
| 483 | </TR> |
---|
| 484 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 485 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 486 | <CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends <A HREF="../../../../org/apache/hadoop/mapred/MapRunnable.html" title="interface in org.apache.hadoop.mapred">MapRunnable</A>></CODE></FONT></TD> |
---|
| 487 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getMapRunnerClass()">getMapRunnerClass</A></B>()</CODE> |
---|
| 488 | |
---|
| 489 | <BR> |
---|
| 490 | <B>Deprecated.</B> Get the <A HREF="../../../../org/apache/hadoop/mapred/MapRunnable.html" title="interface in org.apache.hadoop.mapred"><CODE>MapRunnable</CODE></A> class for the job.</TD> |
---|
| 491 | </TR> |
---|
| 492 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 493 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 494 | <CODE> boolean</CODE></FONT></TD> |
---|
| 495 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getMapSpeculativeExecution()">getMapSpeculativeExecution</A></B>()</CODE> |
---|
| 496 | |
---|
| 497 | <BR> |
---|
| 498 | <B>Deprecated.</B> Should speculative execution be used for this job for map tasks? |
---|
| 499 | Defaults to <code>true</code>.</TD> |
---|
| 500 | </TR> |
---|
| 501 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 502 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 503 | <CODE> int</CODE></FONT></TD> |
---|
| 504 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getMaxMapAttempts()">getMaxMapAttempts</A></B>()</CODE> |
---|
| 505 | |
---|
| 506 | <BR> |
---|
| 507 | <B>Deprecated.</B> Get the configured number of maximum attempts that will be made to run a |
---|
| 508 | map task, as specified by the <code>mapred.map.max.attempts</code> |
---|
| 509 | property.</TD> |
---|
| 510 | </TR> |
---|
| 511 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 512 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 513 | <CODE> int</CODE></FONT></TD> |
---|
| 514 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getMaxMapTaskFailuresPercent()">getMaxMapTaskFailuresPercent</A></B>()</CODE> |
---|
| 515 | |
---|
| 516 | <BR> |
---|
| 517 | <B>Deprecated.</B> Get the maximum percentage of map tasks that can fail without |
---|
| 518 | the job being aborted.</TD> |
---|
| 519 | </TR> |
---|
| 520 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 521 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 522 | <CODE> long</CODE></FONT></TD> |
---|
| 523 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getMaxPhysicalMemoryForTask()">getMaxPhysicalMemoryForTask</A></B>()</CODE> |
---|
| 524 | |
---|
| 525 | <BR> |
---|
| 526 | <B>Deprecated.</B> <I>this variable is deprecated and nolonger in use.</I></TD> |
---|
| 527 | </TR> |
---|
| 528 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 529 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 530 | <CODE> int</CODE></FONT></TD> |
---|
| 531 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getMaxReduceAttempts()">getMaxReduceAttempts</A></B>()</CODE> |
---|
| 532 | |
---|
| 533 | <BR> |
---|
| 534 | <B>Deprecated.</B> Get the configured number of maximum attempts that will be made to run a |
---|
| 535 | reduce task, as specified by the <code>mapred.reduce.max.attempts</code> |
---|
| 536 | property.</TD> |
---|
| 537 | </TR> |
---|
| 538 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 539 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 540 | <CODE> int</CODE></FONT></TD> |
---|
| 541 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getMaxReduceTaskFailuresPercent()">getMaxReduceTaskFailuresPercent</A></B>()</CODE> |
---|
| 542 | |
---|
| 543 | <BR> |
---|
| 544 | <B>Deprecated.</B> Get the maximum percentage of reduce tasks that can fail without |
---|
| 545 | the job being aborted.</TD> |
---|
| 546 | </TR> |
---|
| 547 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 548 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 549 | <CODE> int</CODE></FONT></TD> |
---|
| 550 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getMaxTaskFailuresPerTracker()">getMaxTaskFailuresPerTracker</A></B>()</CODE> |
---|
| 551 | |
---|
| 552 | <BR> |
---|
| 553 | <B>Deprecated.</B> Expert: Get the maximum no.</TD> |
---|
| 554 | </TR> |
---|
| 555 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 556 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 557 | <CODE> long</CODE></FONT></TD> |
---|
| 558 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getMaxVirtualMemoryForTask()">getMaxVirtualMemoryForTask</A></B>()</CODE> |
---|
| 559 | |
---|
| 560 | <BR> |
---|
| 561 | <B>Deprecated.</B> <I>Use <A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getMemoryForMapTask()"><CODE>getMemoryForMapTask()</CODE></A> and |
---|
| 562 | <A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getMemoryForReduceTask()"><CODE>getMemoryForReduceTask()</CODE></A></I></TD> |
---|
| 563 | </TR> |
---|
| 564 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 565 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 566 | <CODE> long</CODE></FONT></TD> |
---|
| 567 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getMemoryForMapTask()">getMemoryForMapTask</A></B>()</CODE> |
---|
| 568 | |
---|
| 569 | <BR> |
---|
| 570 | <B>Deprecated.</B> </TD> |
---|
| 571 | </TR> |
---|
| 572 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 573 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 574 | <CODE> long</CODE></FONT></TD> |
---|
| 575 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getMemoryForReduceTask()">getMemoryForReduceTask</A></B>()</CODE> |
---|
| 576 | |
---|
| 577 | <BR> |
---|
| 578 | <B>Deprecated.</B> </TD> |
---|
| 579 | </TR> |
---|
| 580 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 581 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 582 | <CODE> int</CODE></FONT></TD> |
---|
| 583 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getNumMapTasks()">getNumMapTasks</A></B>()</CODE> |
---|
| 584 | |
---|
| 585 | <BR> |
---|
| 586 | <B>Deprecated.</B> Get configured the number of reduce tasks for this job.</TD> |
---|
| 587 | </TR> |
---|
| 588 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 589 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 590 | <CODE> int</CODE></FONT></TD> |
---|
| 591 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getNumReduceTasks()">getNumReduceTasks</A></B>()</CODE> |
---|
| 592 | |
---|
| 593 | <BR> |
---|
| 594 | <B>Deprecated.</B> Get configured the number of reduce tasks for this job.</TD> |
---|
| 595 | </TR> |
---|
| 596 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 597 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 598 | <CODE> int</CODE></FONT></TD> |
---|
| 599 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getNumTasksToExecutePerJvm()">getNumTasksToExecutePerJvm</A></B>()</CODE> |
---|
| 600 | |
---|
| 601 | <BR> |
---|
| 602 | <B>Deprecated.</B> Get the number of tasks that a spawned JVM should execute</TD> |
---|
| 603 | </TR> |
---|
| 604 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 605 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 606 | <CODE> <A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html" title="class in org.apache.hadoop.mapred">OutputCommitter</A></CODE></FONT></TD> |
---|
| 607 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getOutputCommitter()">getOutputCommitter</A></B>()</CODE> |
---|
| 608 | |
---|
| 609 | <BR> |
---|
| 610 | <B>Deprecated.</B> Get the <A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html" title="class in org.apache.hadoop.mapred"><CODE>OutputCommitter</CODE></A> implementation for the map-reduce job, |
---|
| 611 | defaults to <A HREF="../../../../org/apache/hadoop/mapred/FileOutputCommitter.html" title="class in org.apache.hadoop.mapred"><CODE>FileOutputCommitter</CODE></A> if not specified explicitly.</TD> |
---|
| 612 | </TR> |
---|
| 613 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 614 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 615 | <CODE> <A HREF="../../../../org/apache/hadoop/mapred/OutputFormat.html" title="interface in org.apache.hadoop.mapred">OutputFormat</A></CODE></FONT></TD> |
---|
| 616 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getOutputFormat()">getOutputFormat</A></B>()</CODE> |
---|
| 617 | |
---|
| 618 | <BR> |
---|
| 619 | <B>Deprecated.</B> Get the <A HREF="../../../../org/apache/hadoop/mapred/OutputFormat.html" title="interface in org.apache.hadoop.mapred"><CODE>OutputFormat</CODE></A> implementation for the map-reduce job, |
---|
| 620 | defaults to <A HREF="../../../../org/apache/hadoop/mapred/TextOutputFormat.html" title="class in org.apache.hadoop.mapred"><CODE>TextOutputFormat</CODE></A> if not specified explicity.</TD> |
---|
| 621 | </TR> |
---|
| 622 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 623 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 624 | <CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><?></CODE></FONT></TD> |
---|
| 625 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getOutputKeyClass()">getOutputKeyClass</A></B>()</CODE> |
---|
| 626 | |
---|
| 627 | <BR> |
---|
| 628 | <B>Deprecated.</B> Get the key class for the job output data.</TD> |
---|
| 629 | </TR> |
---|
| 630 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 631 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 632 | <CODE> <A HREF="../../../../org/apache/hadoop/io/RawComparator.html" title="interface in org.apache.hadoop.io">RawComparator</A></CODE></FONT></TD> |
---|
| 633 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getOutputKeyComparator()">getOutputKeyComparator</A></B>()</CODE> |
---|
| 634 | |
---|
| 635 | <BR> |
---|
| 636 | <B>Deprecated.</B> Get the <A HREF="../../../../org/apache/hadoop/io/RawComparator.html" title="interface in org.apache.hadoop.io"><CODE>RawComparator</CODE></A> comparator used to compare keys.</TD> |
---|
| 637 | </TR> |
---|
| 638 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 639 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 640 | <CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><?></CODE></FONT></TD> |
---|
| 641 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getOutputValueClass()">getOutputValueClass</A></B>()</CODE> |
---|
| 642 | |
---|
| 643 | <BR> |
---|
| 644 | <B>Deprecated.</B> Get the value class for job outputs.</TD> |
---|
| 645 | </TR> |
---|
| 646 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 647 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 648 | <CODE> <A HREF="../../../../org/apache/hadoop/io/RawComparator.html" title="interface in org.apache.hadoop.io">RawComparator</A></CODE></FONT></TD> |
---|
| 649 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getOutputValueGroupingComparator()">getOutputValueGroupingComparator</A></B>()</CODE> |
---|
| 650 | |
---|
| 651 | <BR> |
---|
| 652 | <B>Deprecated.</B> Get the user defined <A HREF="../../../../org/apache/hadoop/io/WritableComparable.html" title="interface in org.apache.hadoop.io"><CODE>WritableComparable</CODE></A> comparator for |
---|
| 653 | grouping keys of inputs to the reduce.</TD> |
---|
| 654 | </TR> |
---|
| 655 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 656 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 657 | <CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends <A HREF="../../../../org/apache/hadoop/mapred/Partitioner.html" title="interface in org.apache.hadoop.mapred">Partitioner</A>></CODE></FONT></TD> |
---|
| 658 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getPartitionerClass()">getPartitionerClass</A></B>()</CODE> |
---|
| 659 | |
---|
| 660 | <BR> |
---|
| 661 | <B>Deprecated.</B> Get the <A HREF="../../../../org/apache/hadoop/mapred/Partitioner.html" title="interface in org.apache.hadoop.mapred"><CODE>Partitioner</CODE></A> used to partition <A HREF="../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred"><CODE>Mapper</CODE></A>-outputs |
---|
| 662 | to be sent to the <A HREF="../../../../org/apache/hadoop/mapred/Reducer.html" title="interface in org.apache.hadoop.mapred"><CODE>Reducer</CODE></A>s.</TD> |
---|
| 663 | </TR> |
---|
| 664 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 665 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 666 | <CODE> boolean</CODE></FONT></TD> |
---|
| 667 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getProfileEnabled()">getProfileEnabled</A></B>()</CODE> |
---|
| 668 | |
---|
| 669 | <BR> |
---|
| 670 | <B>Deprecated.</B> Get whether the task profiling is enabled.</TD> |
---|
| 671 | </TR> |
---|
| 672 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 673 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 674 | <CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD> |
---|
| 675 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getProfileParams()">getProfileParams</A></B>()</CODE> |
---|
| 676 | |
---|
| 677 | <BR> |
---|
| 678 | <B>Deprecated.</B> Get the profiler configuration arguments.</TD> |
---|
| 679 | </TR> |
---|
| 680 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 681 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 682 | <CODE> <A HREF="../../../../org/apache/hadoop/conf/Configuration.IntegerRanges.html" title="class in org.apache.hadoop.conf">Configuration.IntegerRanges</A></CODE></FONT></TD> |
---|
| 683 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getProfileTaskRange(boolean)">getProfileTaskRange</A></B>(boolean isMap)</CODE> |
---|
| 684 | |
---|
| 685 | <BR> |
---|
| 686 | <B>Deprecated.</B> Get the range of maps or reduces to profile.</TD> |
---|
| 687 | </TR> |
---|
| 688 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 689 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 690 | <CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD> |
---|
| 691 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getQueueName()">getQueueName</A></B>()</CODE> |
---|
| 692 | |
---|
| 693 | <BR> |
---|
| 694 | <B>Deprecated.</B> Return the name of the queue to which this job is submitted.</TD> |
---|
| 695 | </TR> |
---|
| 696 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 697 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 698 | <CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD> |
---|
| 699 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getReduceDebugScript()">getReduceDebugScript</A></B>()</CODE> |
---|
| 700 | |
---|
| 701 | <BR> |
---|
| 702 | <B>Deprecated.</B> Get the reduce task's debug Script</TD> |
---|
| 703 | </TR> |
---|
| 704 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 705 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 706 | <CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends <A HREF="../../../../org/apache/hadoop/mapred/Reducer.html" title="interface in org.apache.hadoop.mapred">Reducer</A>></CODE></FONT></TD> |
---|
| 707 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getReducerClass()">getReducerClass</A></B>()</CODE> |
---|
| 708 | |
---|
| 709 | <BR> |
---|
| 710 | <B>Deprecated.</B> Get the <A HREF="../../../../org/apache/hadoop/mapred/Reducer.html" title="interface in org.apache.hadoop.mapred"><CODE>Reducer</CODE></A> class for the job.</TD> |
---|
| 711 | </TR> |
---|
| 712 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 713 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 714 | <CODE> boolean</CODE></FONT></TD> |
---|
| 715 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getReduceSpeculativeExecution()">getReduceSpeculativeExecution</A></B>()</CODE> |
---|
| 716 | |
---|
| 717 | <BR> |
---|
| 718 | <B>Deprecated.</B> Should speculative execution be used for this job for reduce tasks? |
---|
| 719 | Defaults to <code>true</code>.</TD> |
---|
| 720 | </TR> |
---|
| 721 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 722 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 723 | <CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD> |
---|
| 724 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getSessionId()">getSessionId</A></B>()</CODE> |
---|
| 725 | |
---|
| 726 | <BR> |
---|
| 727 | <B>Deprecated.</B> Get the user-specified session identifier.</TD> |
---|
| 728 | </TR> |
---|
| 729 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 730 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 731 | <CODE> boolean</CODE></FONT></TD> |
---|
| 732 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getSpeculativeExecution()">getSpeculativeExecution</A></B>()</CODE> |
---|
| 733 | |
---|
| 734 | <BR> |
---|
| 735 | <B>Deprecated.</B> Should speculative execution be used for this job? |
---|
| 736 | Defaults to <code>true</code>.</TD> |
---|
| 737 | </TR> |
---|
| 738 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 739 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 740 | <CODE> boolean</CODE></FONT></TD> |
---|
| 741 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getUseNewMapper()">getUseNewMapper</A></B>()</CODE> |
---|
| 742 | |
---|
| 743 | <BR> |
---|
| 744 | <B>Deprecated.</B> Should the framework use the new context-object code for running |
---|
| 745 | the mapper?</TD> |
---|
| 746 | </TR> |
---|
| 747 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 748 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 749 | <CODE> boolean</CODE></FONT></TD> |
---|
| 750 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getUseNewReducer()">getUseNewReducer</A></B>()</CODE> |
---|
| 751 | |
---|
| 752 | <BR> |
---|
| 753 | <B>Deprecated.</B> Should the framework use the new context-object code for running |
---|
| 754 | the reducer?</TD> |
---|
| 755 | </TR> |
---|
| 756 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 757 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 758 | <CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD> |
---|
| 759 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getUser()">getUser</A></B>()</CODE> |
---|
| 760 | |
---|
| 761 | <BR> |
---|
| 762 | <B>Deprecated.</B> Get the reported username for this job.</TD> |
---|
| 763 | </TR> |
---|
| 764 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 765 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 766 | <CODE> <A HREF="../../../../org/apache/hadoop/fs/Path.html" title="class in org.apache.hadoop.fs">Path</A></CODE></FONT></TD> |
---|
| 767 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getWorkingDirectory()">getWorkingDirectory</A></B>()</CODE> |
---|
| 768 | |
---|
| 769 | <BR> |
---|
| 770 | <B>Deprecated.</B> Get the current working directory for the default file system.</TD> |
---|
| 771 | </TR> |
---|
| 772 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 773 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 774 | <CODE>static long</CODE></FONT></TD> |
---|
| 775 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#normalizeMemoryConfigValue(long)">normalizeMemoryConfigValue</A></B>(long val)</CODE> |
---|
| 776 | |
---|
| 777 | <BR> |
---|
| 778 | <B>Deprecated.</B> Normalize the negative values in configuration</TD> |
---|
| 779 | </TR> |
---|
| 780 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 781 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 782 | <CODE> void</CODE></FONT></TD> |
---|
| 783 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setCombinerClass(java.lang.Class)">setCombinerClass</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends <A HREF="../../../../org/apache/hadoop/mapred/Reducer.html" title="interface in org.apache.hadoop.mapred">Reducer</A>> theClass)</CODE> |
---|
| 784 | |
---|
| 785 | <BR> |
---|
| 786 | <B>Deprecated.</B> Set the user-defined <i>combiner</i> class used to combine map-outputs |
---|
| 787 | before being sent to the reducers.</TD> |
---|
| 788 | </TR> |
---|
| 789 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 790 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 791 | <CODE> void</CODE></FONT></TD> |
---|
| 792 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setCompressMapOutput(boolean)">setCompressMapOutput</A></B>(boolean compress)</CODE> |
---|
| 793 | |
---|
| 794 | <BR> |
---|
| 795 | <B>Deprecated.</B> Should the map outputs be compressed before transfer? |
---|
| 796 | Uses the SequenceFile compression.</TD> |
---|
| 797 | </TR> |
---|
| 798 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 799 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 800 | <CODE> void</CODE></FONT></TD> |
---|
| 801 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setInputFormat(java.lang.Class)">setInputFormat</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends <A HREF="../../../../org/apache/hadoop/mapred/InputFormat.html" title="interface in org.apache.hadoop.mapred">InputFormat</A>> theClass)</CODE> |
---|
| 802 | |
---|
| 803 | <BR> |
---|
| 804 | <B>Deprecated.</B> Set the <A HREF="../../../../org/apache/hadoop/mapred/InputFormat.html" title="interface in org.apache.hadoop.mapred"><CODE>InputFormat</CODE></A> implementation for the map-reduce job.</TD> |
---|
| 805 | </TR> |
---|
| 806 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 807 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 808 | <CODE> void</CODE></FONT></TD> |
---|
| 809 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setJar(java.lang.String)">setJar</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> jar)</CODE> |
---|
| 810 | |
---|
| 811 | <BR> |
---|
| 812 | <B>Deprecated.</B> Set the user jar for the map-reduce job.</TD> |
---|
| 813 | </TR> |
---|
| 814 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 815 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 816 | <CODE> void</CODE></FONT></TD> |
---|
| 817 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setJarByClass(java.lang.Class)">setJarByClass</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A> cls)</CODE> |
---|
| 818 | |
---|
| 819 | <BR> |
---|
| 820 | <B>Deprecated.</B> Set the job's jar file by finding an example class location.</TD> |
---|
| 821 | </TR> |
---|
| 822 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 823 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 824 | <CODE> void</CODE></FONT></TD> |
---|
| 825 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setJobEndNotificationURI(java.lang.String)">setJobEndNotificationURI</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> uri)</CODE> |
---|
| 826 | |
---|
| 827 | <BR> |
---|
| 828 | <B>Deprecated.</B> Set the uri to be invoked in-order to send a notification after the job |
---|
| 829 | has completed (success/failure).</TD> |
---|
| 830 | </TR> |
---|
| 831 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 832 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 833 | <CODE> void</CODE></FONT></TD> |
---|
| 834 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setJobName(java.lang.String)">setJobName</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name)</CODE> |
---|
| 835 | |
---|
| 836 | <BR> |
---|
| 837 | <B>Deprecated.</B> Set the user-specified job name.</TD> |
---|
| 838 | </TR> |
---|
| 839 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 840 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 841 | <CODE> void</CODE></FONT></TD> |
---|
| 842 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setJobPriority(org.apache.hadoop.mapred.JobPriority)">setJobPriority</A></B>(<A HREF="../../../../org/apache/hadoop/mapred/JobPriority.html" title="enum in org.apache.hadoop.mapred">JobPriority</A> prio)</CODE> |
---|
| 843 | |
---|
| 844 | <BR> |
---|
| 845 | <B>Deprecated.</B> Set <A HREF="../../../../org/apache/hadoop/mapred/JobPriority.html" title="enum in org.apache.hadoop.mapred"><CODE>JobPriority</CODE></A> for this job.</TD> |
---|
| 846 | </TR> |
---|
| 847 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 848 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 849 | <CODE> void</CODE></FONT></TD> |
---|
| 850 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setKeepFailedTaskFiles(boolean)">setKeepFailedTaskFiles</A></B>(boolean keep)</CODE> |
---|
| 851 | |
---|
| 852 | <BR> |
---|
| 853 | <B>Deprecated.</B> Set whether the framework should keep the intermediate files for |
---|
| 854 | failed tasks.</TD> |
---|
| 855 | </TR> |
---|
| 856 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 857 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 858 | <CODE> void</CODE></FONT></TD> |
---|
| 859 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setKeepTaskFilesPattern(java.lang.String)">setKeepTaskFilesPattern</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> pattern)</CODE> |
---|
| 860 | |
---|
| 861 | <BR> |
---|
| 862 | <B>Deprecated.</B> Set a regular expression for task names that should be kept.</TD> |
---|
| 863 | </TR> |
---|
| 864 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 865 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 866 | <CODE> void</CODE></FONT></TD> |
---|
| 867 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setKeyFieldComparatorOptions(java.lang.String)">setKeyFieldComparatorOptions</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> keySpec)</CODE> |
---|
| 868 | |
---|
| 869 | <BR> |
---|
| 870 | <B>Deprecated.</B> Set the <A HREF="../../../../org/apache/hadoop/mapred/lib/KeyFieldBasedComparator.html" title="class in org.apache.hadoop.mapred.lib"><CODE>KeyFieldBasedComparator</CODE></A> options used to compare keys.</TD> |
---|
| 871 | </TR> |
---|
| 872 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 873 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 874 | <CODE> void</CODE></FONT></TD> |
---|
| 875 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setKeyFieldPartitionerOptions(java.lang.String)">setKeyFieldPartitionerOptions</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> keySpec)</CODE> |
---|
| 876 | |
---|
| 877 | <BR> |
---|
| 878 | <B>Deprecated.</B> Set the <A HREF="../../../../org/apache/hadoop/mapred/lib/KeyFieldBasedPartitioner.html" title="class in org.apache.hadoop.mapred.lib"><CODE>KeyFieldBasedPartitioner</CODE></A> options used for |
---|
| 879 | <A HREF="../../../../org/apache/hadoop/mapred/Partitioner.html" title="interface in org.apache.hadoop.mapred"><CODE>Partitioner</CODE></A></TD> |
---|
| 880 | </TR> |
---|
| 881 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 882 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 883 | <CODE> void</CODE></FONT></TD> |
---|
| 884 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setMapDebugScript(java.lang.String)">setMapDebugScript</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> mDbgScript)</CODE> |
---|
| 885 | |
---|
| 886 | <BR> |
---|
| 887 | <B>Deprecated.</B> Set the debug script to run when the map tasks fail.</TD> |
---|
| 888 | </TR> |
---|
| 889 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 890 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 891 | <CODE> void</CODE></FONT></TD> |
---|
| 892 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setMapOutputCompressorClass(java.lang.Class)">setMapOutputCompressorClass</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends <A HREF="../../../../org/apache/hadoop/io/compress/CompressionCodec.html" title="interface in org.apache.hadoop.io.compress">CompressionCodec</A>> codecClass)</CODE> |
---|
| 893 | |
---|
| 894 | <BR> |
---|
| 895 | <B>Deprecated.</B> Set the given class as the <A HREF="../../../../org/apache/hadoop/io/compress/CompressionCodec.html" title="interface in org.apache.hadoop.io.compress"><CODE>CompressionCodec</CODE></A> for the map outputs.</TD> |
---|
| 896 | </TR> |
---|
| 897 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 898 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 899 | <CODE> void</CODE></FONT></TD> |
---|
| 900 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setMapOutputKeyClass(java.lang.Class)">setMapOutputKeyClass</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><?> theClass)</CODE> |
---|
| 901 | |
---|
| 902 | <BR> |
---|
| 903 | <B>Deprecated.</B> Set the key class for the map output data.</TD> |
---|
| 904 | </TR> |
---|
| 905 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 906 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 907 | <CODE> void</CODE></FONT></TD> |
---|
| 908 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setMapOutputValueClass(java.lang.Class)">setMapOutputValueClass</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><?> theClass)</CODE> |
---|
| 909 | |
---|
| 910 | <BR> |
---|
| 911 | <B>Deprecated.</B> Set the value class for the map output data.</TD> |
---|
| 912 | </TR> |
---|
| 913 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 914 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 915 | <CODE> void</CODE></FONT></TD> |
---|
| 916 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setMapperClass(java.lang.Class)">setMapperClass</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends <A HREF="../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred">Mapper</A>> theClass)</CODE> |
---|
| 917 | |
---|
| 918 | <BR> |
---|
| 919 | <B>Deprecated.</B> Set the <A HREF="../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred"><CODE>Mapper</CODE></A> class for the job.</TD> |
---|
| 920 | </TR> |
---|
| 921 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 922 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 923 | <CODE> void</CODE></FONT></TD> |
---|
| 924 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setMapRunnerClass(java.lang.Class)">setMapRunnerClass</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends <A HREF="../../../../org/apache/hadoop/mapred/MapRunnable.html" title="interface in org.apache.hadoop.mapred">MapRunnable</A>> theClass)</CODE> |
---|
| 925 | |
---|
| 926 | <BR> |
---|
| 927 | <B>Deprecated.</B> Expert: Set the <A HREF="../../../../org/apache/hadoop/mapred/MapRunnable.html" title="interface in org.apache.hadoop.mapred"><CODE>MapRunnable</CODE></A> class for the job.</TD> |
---|
| 928 | </TR> |
---|
| 929 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 930 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 931 | <CODE> void</CODE></FONT></TD> |
---|
| 932 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setMapSpeculativeExecution(boolean)">setMapSpeculativeExecution</A></B>(boolean speculativeExecution)</CODE> |
---|
| 933 | |
---|
| 934 | <BR> |
---|
| 935 | <B>Deprecated.</B> Turn speculative execution on or off for this job for map tasks.</TD> |
---|
| 936 | </TR> |
---|
| 937 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 938 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 939 | <CODE> void</CODE></FONT></TD> |
---|
| 940 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setMaxMapAttempts(int)">setMaxMapAttempts</A></B>(int n)</CODE> |
---|
| 941 | |
---|
| 942 | <BR> |
---|
| 943 | <B>Deprecated.</B> Expert: Set the number of maximum attempts that will be made to run a |
---|
| 944 | map task.</TD> |
---|
| 945 | </TR> |
---|
| 946 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 947 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 948 | <CODE> void</CODE></FONT></TD> |
---|
| 949 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setMaxMapTaskFailuresPercent(int)">setMaxMapTaskFailuresPercent</A></B>(int percent)</CODE> |
---|
| 950 | |
---|
| 951 | <BR> |
---|
| 952 | <B>Deprecated.</B> Expert: Set the maximum percentage of map tasks that can fail without the |
---|
| 953 | job being aborted.</TD> |
---|
| 954 | </TR> |
---|
| 955 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 956 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 957 | <CODE> void</CODE></FONT></TD> |
---|
| 958 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setMaxPhysicalMemoryForTask(long)">setMaxPhysicalMemoryForTask</A></B>(long mem)</CODE> |
---|
| 959 | |
---|
| 960 | <BR> |
---|
| 961 | <B>Deprecated.</B> </TD> |
---|
| 962 | </TR> |
---|
| 963 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 964 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 965 | <CODE> void</CODE></FONT></TD> |
---|
| 966 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setMaxReduceAttempts(int)">setMaxReduceAttempts</A></B>(int n)</CODE> |
---|
| 967 | |
---|
| 968 | <BR> |
---|
| 969 | <B>Deprecated.</B> Expert: Set the number of maximum attempts that will be made to run a |
---|
| 970 | reduce task.</TD> |
---|
| 971 | </TR> |
---|
| 972 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 973 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 974 | <CODE> void</CODE></FONT></TD> |
---|
| 975 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setMaxReduceTaskFailuresPercent(int)">setMaxReduceTaskFailuresPercent</A></B>(int percent)</CODE> |
---|
| 976 | |
---|
| 977 | <BR> |
---|
| 978 | <B>Deprecated.</B> Set the maximum percentage of reduce tasks that can fail without the job |
---|
| 979 | being aborted.</TD> |
---|
| 980 | </TR> |
---|
| 981 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 982 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 983 | <CODE> void</CODE></FONT></TD> |
---|
| 984 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setMaxTaskFailuresPerTracker(int)">setMaxTaskFailuresPerTracker</A></B>(int noFailures)</CODE> |
---|
| 985 | |
---|
| 986 | <BR> |
---|
| 987 | <B>Deprecated.</B> Set the maximum no.</TD> |
---|
| 988 | </TR> |
---|
| 989 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 990 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 991 | <CODE> void</CODE></FONT></TD> |
---|
| 992 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setMaxVirtualMemoryForTask(long)">setMaxVirtualMemoryForTask</A></B>(long vmem)</CODE> |
---|
| 993 | |
---|
| 994 | <BR> |
---|
| 995 | <B>Deprecated.</B> <I>Use <A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setMemoryForMapTask(long)"><CODE>setMemoryForMapTask(long mem)</CODE></A> and |
---|
| 996 | Use <A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setMemoryForReduceTask(long)"><CODE>setMemoryForReduceTask(long mem)</CODE></A></I></TD> |
---|
| 997 | </TR> |
---|
| 998 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 999 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 1000 | <CODE> void</CODE></FONT></TD> |
---|
| 1001 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setMemoryForMapTask(long)">setMemoryForMapTask</A></B>(long mem)</CODE> |
---|
| 1002 | |
---|
| 1003 | <BR> |
---|
| 1004 | <B>Deprecated.</B> </TD> |
---|
| 1005 | </TR> |
---|
| 1006 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 1007 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 1008 | <CODE> void</CODE></FONT></TD> |
---|
| 1009 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setMemoryForReduceTask(long)">setMemoryForReduceTask</A></B>(long mem)</CODE> |
---|
| 1010 | |
---|
| 1011 | <BR> |
---|
| 1012 | <B>Deprecated.</B> </TD> |
---|
| 1013 | </TR> |
---|
| 1014 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 1015 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 1016 | <CODE> void</CODE></FONT></TD> |
---|
| 1017 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setNumMapTasks(int)">setNumMapTasks</A></B>(int n)</CODE> |
---|
| 1018 | |
---|
| 1019 | <BR> |
---|
| 1020 | <B>Deprecated.</B> Set the number of map tasks for this job.</TD> |
---|
| 1021 | </TR> |
---|
| 1022 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 1023 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 1024 | <CODE> void</CODE></FONT></TD> |
---|
| 1025 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setNumReduceTasks(int)">setNumReduceTasks</A></B>(int n)</CODE> |
---|
| 1026 | |
---|
| 1027 | <BR> |
---|
| 1028 | <B>Deprecated.</B> Set the requisite number of reduce tasks for this job.</TD> |
---|
| 1029 | </TR> |
---|
| 1030 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 1031 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 1032 | <CODE> void</CODE></FONT></TD> |
---|
| 1033 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setNumTasksToExecutePerJvm(int)">setNumTasksToExecutePerJvm</A></B>(int numTasks)</CODE> |
---|
| 1034 | |
---|
| 1035 | <BR> |
---|
| 1036 | <B>Deprecated.</B> Sets the number of tasks that a spawned task JVM should run |
---|
| 1037 | before it exits</TD> |
---|
| 1038 | </TR> |
---|
| 1039 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 1040 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 1041 | <CODE> void</CODE></FONT></TD> |
---|
| 1042 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setOutputCommitter(java.lang.Class)">setOutputCommitter</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends <A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html" title="class in org.apache.hadoop.mapred">OutputCommitter</A>> theClass)</CODE> |
---|
| 1043 | |
---|
| 1044 | <BR> |
---|
| 1045 | <B>Deprecated.</B> Set the <A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html" title="class in org.apache.hadoop.mapred"><CODE>OutputCommitter</CODE></A> implementation for the map-reduce job.</TD> |
---|
| 1046 | </TR> |
---|
| 1047 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 1048 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 1049 | <CODE> void</CODE></FONT></TD> |
---|
| 1050 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setOutputFormat(java.lang.Class)">setOutputFormat</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends <A HREF="../../../../org/apache/hadoop/mapred/OutputFormat.html" title="interface in org.apache.hadoop.mapred">OutputFormat</A>> theClass)</CODE> |
---|
| 1051 | |
---|
| 1052 | <BR> |
---|
| 1053 | <B>Deprecated.</B> Set the <A HREF="../../../../org/apache/hadoop/mapred/OutputFormat.html" title="interface in org.apache.hadoop.mapred"><CODE>OutputFormat</CODE></A> implementation for the map-reduce job.</TD> |
---|
| 1054 | </TR> |
---|
| 1055 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 1056 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 1057 | <CODE> void</CODE></FONT></TD> |
---|
| 1058 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setOutputKeyClass(java.lang.Class)">setOutputKeyClass</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><?> theClass)</CODE> |
---|
| 1059 | |
---|
| 1060 | <BR> |
---|
| 1061 | <B>Deprecated.</B> Set the key class for the job output data.</TD> |
---|
| 1062 | </TR> |
---|
| 1063 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 1064 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 1065 | <CODE> void</CODE></FONT></TD> |
---|
| 1066 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setOutputKeyComparatorClass(java.lang.Class)">setOutputKeyComparatorClass</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends <A HREF="../../../../org/apache/hadoop/io/RawComparator.html" title="interface in org.apache.hadoop.io">RawComparator</A>> theClass)</CODE> |
---|
| 1067 | |
---|
| 1068 | <BR> |
---|
| 1069 | <B>Deprecated.</B> Set the <A HREF="../../../../org/apache/hadoop/io/RawComparator.html" title="interface in org.apache.hadoop.io"><CODE>RawComparator</CODE></A> comparator used to compare keys.</TD> |
---|
| 1070 | </TR> |
---|
| 1071 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 1072 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 1073 | <CODE> void</CODE></FONT></TD> |
---|
| 1074 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setOutputValueClass(java.lang.Class)">setOutputValueClass</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><?> theClass)</CODE> |
---|
| 1075 | |
---|
| 1076 | <BR> |
---|
| 1077 | <B>Deprecated.</B> Set the value class for job outputs.</TD> |
---|
| 1078 | </TR> |
---|
| 1079 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 1080 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 1081 | <CODE> void</CODE></FONT></TD> |
---|
| 1082 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setOutputValueGroupingComparator(java.lang.Class)">setOutputValueGroupingComparator</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends <A HREF="../../../../org/apache/hadoop/io/RawComparator.html" title="interface in org.apache.hadoop.io">RawComparator</A>> theClass)</CODE> |
---|
| 1083 | |
---|
| 1084 | <BR> |
---|
| 1085 | <B>Deprecated.</B> Set the user defined <A HREF="../../../../org/apache/hadoop/io/RawComparator.html" title="interface in org.apache.hadoop.io"><CODE>RawComparator</CODE></A> comparator for |
---|
| 1086 | grouping keys in the input to the reduce.</TD> |
---|
| 1087 | </TR> |
---|
| 1088 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 1089 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 1090 | <CODE> void</CODE></FONT></TD> |
---|
| 1091 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setPartitionerClass(java.lang.Class)">setPartitionerClass</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends <A HREF="../../../../org/apache/hadoop/mapred/Partitioner.html" title="interface in org.apache.hadoop.mapred">Partitioner</A>> theClass)</CODE> |
---|
| 1092 | |
---|
| 1093 | <BR> |
---|
| 1094 | <B>Deprecated.</B> Set the <A HREF="../../../../org/apache/hadoop/mapred/Partitioner.html" title="interface in org.apache.hadoop.mapred"><CODE>Partitioner</CODE></A> class used to partition |
---|
| 1095 | <A HREF="../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred"><CODE>Mapper</CODE></A>-outputs to be sent to the <A HREF="../../../../org/apache/hadoop/mapred/Reducer.html" title="interface in org.apache.hadoop.mapred"><CODE>Reducer</CODE></A>s.</TD> |
---|
| 1096 | </TR> |
---|
| 1097 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 1098 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 1099 | <CODE> void</CODE></FONT></TD> |
---|
| 1100 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setProfileEnabled(boolean)">setProfileEnabled</A></B>(boolean newValue)</CODE> |
---|
| 1101 | |
---|
| 1102 | <BR> |
---|
| 1103 | <B>Deprecated.</B> Set whether the system should collect profiler information for some of |
---|
| 1104 | the tasks in this job? The information is stored in the user log |
---|
| 1105 | directory.</TD> |
---|
| 1106 | </TR> |
---|
| 1107 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 1108 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 1109 | <CODE> void</CODE></FONT></TD> |
---|
| 1110 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setProfileParams(java.lang.String)">setProfileParams</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> value)</CODE> |
---|
| 1111 | |
---|
| 1112 | <BR> |
---|
| 1113 | <B>Deprecated.</B> Set the profiler configuration arguments.</TD> |
---|
| 1114 | </TR> |
---|
| 1115 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 1116 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 1117 | <CODE> void</CODE></FONT></TD> |
---|
| 1118 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setProfileTaskRange(boolean, java.lang.String)">setProfileTaskRange</A></B>(boolean isMap, |
---|
| 1119 | <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> newValue)</CODE> |
---|
| 1120 | |
---|
| 1121 | <BR> |
---|
| 1122 | <B>Deprecated.</B> Set the ranges of maps or reduces to profile.</TD> |
---|
| 1123 | </TR> |
---|
| 1124 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 1125 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 1126 | <CODE> void</CODE></FONT></TD> |
---|
| 1127 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setQueueName(java.lang.String)">setQueueName</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> queueName)</CODE> |
---|
| 1128 | |
---|
| 1129 | <BR> |
---|
| 1130 | <B>Deprecated.</B> Set the name of the queue to which this job should be submitted.</TD> |
---|
| 1131 | </TR> |
---|
| 1132 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 1133 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 1134 | <CODE> void</CODE></FONT></TD> |
---|
| 1135 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setReduceDebugScript(java.lang.String)">setReduceDebugScript</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> rDbgScript)</CODE> |
---|
| 1136 | |
---|
| 1137 | <BR> |
---|
| 1138 | <B>Deprecated.</B> Set the debug script to run when the reduce tasks fail.</TD> |
---|
| 1139 | </TR> |
---|
| 1140 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 1141 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 1142 | <CODE> void</CODE></FONT></TD> |
---|
| 1143 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setReducerClass(java.lang.Class)">setReducerClass</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends <A HREF="../../../../org/apache/hadoop/mapred/Reducer.html" title="interface in org.apache.hadoop.mapred">Reducer</A>> theClass)</CODE> |
---|
| 1144 | |
---|
| 1145 | <BR> |
---|
| 1146 | <B>Deprecated.</B> Set the <A HREF="../../../../org/apache/hadoop/mapred/Reducer.html" title="interface in org.apache.hadoop.mapred"><CODE>Reducer</CODE></A> class for the job.</TD> |
---|
| 1147 | </TR> |
---|
| 1148 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 1149 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 1150 | <CODE> void</CODE></FONT></TD> |
---|
| 1151 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setReduceSpeculativeExecution(boolean)">setReduceSpeculativeExecution</A></B>(boolean speculativeExecution)</CODE> |
---|
| 1152 | |
---|
| 1153 | <BR> |
---|
| 1154 | <B>Deprecated.</B> Turn speculative execution on or off for this job for reduce tasks.</TD> |
---|
| 1155 | </TR> |
---|
| 1156 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 1157 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 1158 | <CODE> void</CODE></FONT></TD> |
---|
| 1159 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setSessionId(java.lang.String)">setSessionId</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> sessionId)</CODE> |
---|
| 1160 | |
---|
| 1161 | <BR> |
---|
| 1162 | <B>Deprecated.</B> Set the user-specified session identifier.</TD> |
---|
| 1163 | </TR> |
---|
| 1164 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 1165 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 1166 | <CODE> void</CODE></FONT></TD> |
---|
| 1167 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setSpeculativeExecution(boolean)">setSpeculativeExecution</A></B>(boolean speculativeExecution)</CODE> |
---|
| 1168 | |
---|
| 1169 | <BR> |
---|
| 1170 | <B>Deprecated.</B> Turn speculative execution on or off for this job.</TD> |
---|
| 1171 | </TR> |
---|
| 1172 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 1173 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 1174 | <CODE> void</CODE></FONT></TD> |
---|
| 1175 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setUseNewMapper(boolean)">setUseNewMapper</A></B>(boolean flag)</CODE> |
---|
| 1176 | |
---|
| 1177 | <BR> |
---|
| 1178 | <B>Deprecated.</B> Set whether the framework should use the new api for the mapper.</TD> |
---|
| 1179 | </TR> |
---|
| 1180 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 1181 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 1182 | <CODE> void</CODE></FONT></TD> |
---|
| 1183 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setUseNewReducer(boolean)">setUseNewReducer</A></B>(boolean flag)</CODE> |
---|
| 1184 | |
---|
| 1185 | <BR> |
---|
| 1186 | <B>Deprecated.</B> Set whether the framework should use the new api for the reducer.</TD> |
---|
| 1187 | </TR> |
---|
| 1188 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 1189 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 1190 | <CODE> void</CODE></FONT></TD> |
---|
| 1191 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setUser(java.lang.String)">setUser</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> user)</CODE> |
---|
| 1192 | |
---|
| 1193 | <BR> |
---|
| 1194 | <B>Deprecated.</B> Set the reported username for this job.</TD> |
---|
| 1195 | </TR> |
---|
| 1196 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 1197 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
---|
| 1198 | <CODE> void</CODE></FONT></TD> |
---|
| 1199 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setWorkingDirectory(org.apache.hadoop.fs.Path)">setWorkingDirectory</A></B>(<A HREF="../../../../org/apache/hadoop/fs/Path.html" title="class in org.apache.hadoop.fs">Path</A> dir)</CODE> |
---|
| 1200 | |
---|
| 1201 | <BR> |
---|
| 1202 | <B>Deprecated.</B> Set the current working directory for the default file system.</TD> |
---|
| 1203 | </TR> |
---|
| 1204 | </TABLE> |
---|
| 1205 | <A NAME="methods_inherited_from_class_org.apache.hadoop.conf.Configuration"><!-- --></A> |
---|
| 1206 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
---|
| 1207 | <TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"> |
---|
| 1208 | <TH ALIGN="left"><B>Methods inherited from class org.apache.hadoop.conf.<A HREF="../../../../org/apache/hadoop/conf/Configuration.html" title="class in org.apache.hadoop.conf">Configuration</A></B></TH> |
---|
| 1209 | </TR> |
---|
| 1210 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 1211 | <TD><CODE><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#addDefaultResource(java.lang.String)">addDefaultResource</A>, <A HREF="../../../../org/apache/hadoop/conf/Configuration.html#addResource(java.io.InputStream)">addResource</A>, <A HREF="../../../../org/apache/hadoop/conf/Configuration.html#addResource(org.apache.hadoop.fs.Path)">addResource</A>, <A HREF="../../../../org/apache/hadoop/conf/Configuration.html#addResource(java.lang.String)">addResource</A>, <A HREF="../../../../org/apache/hadoop/conf/Configuration.html#addResource(java.net.URL)">addResource</A>, <A HREF="../../../../org/apache/hadoop/conf/Configuration.html#clear()">clear</A>, <A HREF="../../../../org/apache/hadoop/conf/Configuration.html#get(java.lang.String)">get</A>, <A HREF="../../../../org/apache/hadoop/conf/Configuration.html#get(java.lang.String, java.lang.String)">get</A>, <A HREF="../../../../org/apache/hadoop/conf/Configuration.html#getBoolean(java.lang.String, boolean)">getBoolean</A>, <A HREF="../../../../org/apache/hadoop/conf/Configuration.html#getClass(java.lang.String, java.lang.Class)">getClass</A>, <A HREF="../../../../org/apache/hadoop/conf/Configuration.html#getClass(java.lang.String, java.lang.Class, java.lang.Class)">getClass</A>, <A HREF="../../../../org/apache/hadoop/conf/Configuration.html#getClassByName(java.lang.String)">getClassByName</A>, <A HREF="../../../../org/apache/hadoop/conf/Configuration.html#getClasses(java.lang.String, java.lang.Class...)">getClasses</A>, <A HREF="../../../../org/apache/hadoop/conf/Configuration.html#getClassLoader()">getClassLoader</A>, <A HREF="../../../../org/apache/hadoop/conf/Configuration.html#getConfResourceAsInputStream(java.lang.String)">getConfResourceAsInputStream</A>, <A HREF="../../../../org/apache/hadoop/conf/Configuration.html#getConfResourceAsReader(java.lang.String)">getConfResourceAsReader</A>, <A HREF="../../../../org/apache/hadoop/conf/Configuration.html#getFile(java.lang.String, java.lang.String)">getFile</A>, <A HREF="../../../../org/apache/hadoop/conf/Configuration.html#getFloat(java.lang.String, float)">getFloat</A>, <A HREF="../../../../org/apache/hadoop/conf/Configuration.html#getInt(java.lang.String, int)">getInt</A>, <A HREF="../../../../org/apache/hadoop/conf/Configuration.html#getLocalPath(java.lang.String, java.lang.String)">getLocalPath</A>, <A HREF="../../../../org/apache/hadoop/conf/Configuration.html#getLong(java.lang.String, long)">getLong</A>, <A HREF="../../../../org/apache/hadoop/conf/Configuration.html#getRange(java.lang.String, java.lang.String)">getRange</A>, <A HREF="../../../../org/apache/hadoop/conf/Configuration.html#getRaw(java.lang.String)">getRaw</A>, <A HREF="../../../../org/apache/hadoop/conf/Configuration.html#getResource(java.lang.String)">getResource</A>, <A HREF="../../../../org/apache/hadoop/conf/Configuration.html#getStringCollection(java.lang.String)">getStringCollection</A>, <A HREF="../../../../org/apache/hadoop/conf/Configuration.html#getStrings(java.lang.String)">getStrings</A>, <A HREF="../../../../org/apache/hadoop/conf/Configuration.html#getStrings(java.lang.String, java.lang.String...)">getStrings</A>, <A HREF="../../../../org/apache/hadoop/conf/Configuration.html#iterator()">iterator</A>, <A HREF="../../../../org/apache/hadoop/conf/Configuration.html#main(java.lang.String[])">main</A>, <A HREF="../../../../org/apache/hadoop/conf/Configuration.html#readFields(java.io.DataInput)">readFields</A>, <A HREF="../../../../org/apache/hadoop/conf/Configuration.html#reloadConfiguration()">reloadConfiguration</A>, <A HREF="../../../../org/apache/hadoop/conf/Configuration.html#set(java.lang.String, java.lang.String)">set</A>, <A HREF="../../../../org/apache/hadoop/conf/Configuration.html#setBoolean(java.lang.String, boolean)">setBoolean</A>, <A HREF="../../../../org/apache/hadoop/conf/Configuration.html#setBooleanIfUnset(java.lang.String, boolean)">setBooleanIfUnset</A>, <A HREF="../../../../org/apache/hadoop/conf/Configuration.html#setClass(java.lang.String, java.lang.Class, java.lang.Class)">setClass</A>, <A HREF="../../../../org/apache/hadoop/conf/Configuration.html#setClassLoader(java.lang.ClassLoader)">setClassLoader</A>, <A HREF="../../../../org/apache/hadoop/conf/Configuration.html#setFloat(java.lang.String, float)">setFloat</A>, <A HREF="../../../../org/apache/hadoop/conf/Configuration.html#setIfUnset(java.lang.String, java.lang.String)">setIfUnset</A>, <A HREF="../../../../org/apache/hadoop/conf/Configuration.html#setInt(java.lang.String, int)">setInt</A>, <A HREF="../../../../org/apache/hadoop/conf/Configuration.html#setLong(java.lang.String, long)">setLong</A>, <A HREF="../../../../org/apache/hadoop/conf/Configuration.html#setQuietMode(boolean)">setQuietMode</A>, <A HREF="../../../../org/apache/hadoop/conf/Configuration.html#setStrings(java.lang.String, java.lang.String...)">setStrings</A>, <A HREF="../../../../org/apache/hadoop/conf/Configuration.html#size()">size</A>, <A HREF="../../../../org/apache/hadoop/conf/Configuration.html#toString()">toString</A>, <A HREF="../../../../org/apache/hadoop/conf/Configuration.html#write(java.io.DataOutput)">write</A>, <A HREF="../../../../org/apache/hadoop/conf/Configuration.html#writeXml(java.io.OutputStream)">writeXml</A></CODE></TD> |
---|
| 1212 | </TR> |
---|
| 1213 | </TABLE> |
---|
| 1214 | <A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A> |
---|
| 1215 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
---|
| 1216 | <TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"> |
---|
| 1217 | <TH ALIGN="left"><B>Methods inherited from class java.lang.<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A></B></TH> |
---|
| 1218 | </TR> |
---|
| 1219 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
---|
| 1220 | <TD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang">clone</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang">equals</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang">finalize</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang">getClass</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang">hashCode</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang">notify</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang">notifyAll</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait(long, int)" title="class or interface in java.lang">wait</A></CODE></TD> |
---|
| 1221 | </TR> |
---|
| 1222 | </TABLE> |
---|
| 1223 | |
---|
| 1224 | <P> |
---|
| 1225 | |
---|
| 1226 | <!-- ============ FIELD DETAIL =========== --> |
---|
| 1227 | |
---|
| 1228 | <A NAME="field_detail"><!-- --></A> |
---|
| 1229 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
---|
| 1230 | <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
---|
| 1231 | <TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> |
---|
| 1232 | <B>Field Detail</B></FONT></TH> |
---|
| 1233 | </TR> |
---|
| 1234 | </TABLE> |
---|
| 1235 | |
---|
| 1236 | <A NAME="MAPRED_TASK_MAXVMEM_PROPERTY"><!-- --></A><H3> |
---|
| 1237 | MAPRED_TASK_MAXVMEM_PROPERTY</H3> |
---|
| 1238 | <PRE> |
---|
| 1239 | <FONT SIZE="-1"><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Deprecated.html?is-external=true" title="class or interface in java.lang">@Deprecated</A> |
---|
| 1240 | </FONT>public static final <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>MAPRED_TASK_MAXVMEM_PROPERTY</B></PRE> |
---|
| 1241 | <DL> |
---|
| 1242 | <DD><B>Deprecated.</B> <I></I><DL> |
---|
| 1243 | <DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#org.apache.hadoop.mapred.JobConf.MAPRED_TASK_MAXVMEM_PROPERTY">Constant Field Values</A></DL> |
---|
| 1244 | </DL> |
---|
| 1245 | <HR> |
---|
| 1246 | |
---|
| 1247 | <A NAME="UPPER_LIMIT_ON_TASK_VMEM_PROPERTY"><!-- --></A><H3> |
---|
| 1248 | UPPER_LIMIT_ON_TASK_VMEM_PROPERTY</H3> |
---|
| 1249 | <PRE> |
---|
| 1250 | <FONT SIZE="-1"><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Deprecated.html?is-external=true" title="class or interface in java.lang">@Deprecated</A> |
---|
| 1251 | </FONT>public static final <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>UPPER_LIMIT_ON_TASK_VMEM_PROPERTY</B></PRE> |
---|
| 1252 | <DL> |
---|
| 1253 | <DD><B>Deprecated.</B> <I></I><DL> |
---|
| 1254 | <DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#org.apache.hadoop.mapred.JobConf.UPPER_LIMIT_ON_TASK_VMEM_PROPERTY">Constant Field Values</A></DL> |
---|
| 1255 | </DL> |
---|
| 1256 | <HR> |
---|
| 1257 | |
---|
| 1258 | <A NAME="MAPRED_TASK_DEFAULT_MAXVMEM_PROPERTY"><!-- --></A><H3> |
---|
| 1259 | MAPRED_TASK_DEFAULT_MAXVMEM_PROPERTY</H3> |
---|
| 1260 | <PRE> |
---|
| 1261 | <FONT SIZE="-1"><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Deprecated.html?is-external=true" title="class or interface in java.lang">@Deprecated</A> |
---|
| 1262 | </FONT>public static final <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>MAPRED_TASK_DEFAULT_MAXVMEM_PROPERTY</B></PRE> |
---|
| 1263 | <DL> |
---|
| 1264 | <DD><B>Deprecated.</B> <I></I><DL> |
---|
| 1265 | <DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#org.apache.hadoop.mapred.JobConf.MAPRED_TASK_DEFAULT_MAXVMEM_PROPERTY">Constant Field Values</A></DL> |
---|
| 1266 | </DL> |
---|
| 1267 | <HR> |
---|
| 1268 | |
---|
| 1269 | <A NAME="MAPRED_TASK_MAXPMEM_PROPERTY"><!-- --></A><H3> |
---|
| 1270 | MAPRED_TASK_MAXPMEM_PROPERTY</H3> |
---|
| 1271 | <PRE> |
---|
| 1272 | <FONT SIZE="-1"><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Deprecated.html?is-external=true" title="class or interface in java.lang">@Deprecated</A> |
---|
| 1273 | </FONT>public static final <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>MAPRED_TASK_MAXPMEM_PROPERTY</B></PRE> |
---|
| 1274 | <DL> |
---|
| 1275 | <DD><B>Deprecated.</B> <I></I><DL> |
---|
| 1276 | <DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#org.apache.hadoop.mapred.JobConf.MAPRED_TASK_MAXPMEM_PROPERTY">Constant Field Values</A></DL> |
---|
| 1277 | </DL> |
---|
| 1278 | <HR> |
---|
| 1279 | |
---|
| 1280 | <A NAME="DISABLED_MEMORY_LIMIT"><!-- --></A><H3> |
---|
| 1281 | DISABLED_MEMORY_LIMIT</H3> |
---|
| 1282 | <PRE> |
---|
| 1283 | public static final long <B>DISABLED_MEMORY_LIMIT</B></PRE> |
---|
| 1284 | <DL> |
---|
| 1285 | <DD><B>Deprecated.</B> <DD>A value which if set for memory related configuration options, |
---|
| 1286 | indicates that the options are turned off. |
---|
| 1287 | <P> |
---|
| 1288 | <DL> |
---|
| 1289 | <DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#org.apache.hadoop.mapred.JobConf.DISABLED_MEMORY_LIMIT">Constant Field Values</A></DL> |
---|
| 1290 | </DL> |
---|
| 1291 | <HR> |
---|
| 1292 | |
---|
| 1293 | <A NAME="DEFAULT_QUEUE_NAME"><!-- --></A><H3> |
---|
| 1294 | DEFAULT_QUEUE_NAME</H3> |
---|
| 1295 | <PRE> |
---|
| 1296 | public static final <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>DEFAULT_QUEUE_NAME</B></PRE> |
---|
| 1297 | <DL> |
---|
| 1298 | <DD><B>Deprecated.</B> <DD>Name of the queue to which jobs will be submitted, if no queue |
---|
| 1299 | name is mentioned. |
---|
| 1300 | <P> |
---|
| 1301 | <DL> |
---|
| 1302 | <DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#org.apache.hadoop.mapred.JobConf.DEFAULT_QUEUE_NAME">Constant Field Values</A></DL> |
---|
| 1303 | </DL> |
---|
| 1304 | |
---|
| 1305 | <!-- ========= CONSTRUCTOR DETAIL ======== --> |
---|
| 1306 | |
---|
| 1307 | <A NAME="constructor_detail"><!-- --></A> |
---|
| 1308 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
---|
| 1309 | <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
---|
| 1310 | <TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> |
---|
| 1311 | <B>Constructor Detail</B></FONT></TH> |
---|
| 1312 | </TR> |
---|
| 1313 | </TABLE> |
---|
| 1314 | |
---|
| 1315 | <A NAME="JobConf()"><!-- --></A><H3> |
---|
| 1316 | JobConf</H3> |
---|
| 1317 | <PRE> |
---|
| 1318 | public <B>JobConf</B>()</PRE> |
---|
| 1319 | <DL> |
---|
| 1320 | <DD><B>Deprecated.</B> <DD>Construct a map/reduce job configuration. |
---|
| 1321 | <P> |
---|
| 1322 | </DL> |
---|
| 1323 | <HR> |
---|
| 1324 | |
---|
| 1325 | <A NAME="JobConf(java.lang.Class)"><!-- --></A><H3> |
---|
| 1326 | JobConf</H3> |
---|
| 1327 | <PRE> |
---|
| 1328 | public <B>JobConf</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A> exampleClass)</PRE> |
---|
| 1329 | <DL> |
---|
| 1330 | <DD><B>Deprecated.</B> <DD>Construct a map/reduce job configuration. |
---|
| 1331 | <P> |
---|
| 1332 | <DL> |
---|
| 1333 | <DT><B>Parameters:</B><DD><CODE>exampleClass</CODE> - a class whose containing jar is used as the job's jar.</DL> |
---|
| 1334 | </DL> |
---|
| 1335 | <HR> |
---|
| 1336 | |
---|
| 1337 | <A NAME="JobConf(org.apache.hadoop.conf.Configuration)"><!-- --></A><H3> |
---|
| 1338 | JobConf</H3> |
---|
| 1339 | <PRE> |
---|
| 1340 | public <B>JobConf</B>(<A HREF="../../../../org/apache/hadoop/conf/Configuration.html" title="class in org.apache.hadoop.conf">Configuration</A> conf)</PRE> |
---|
| 1341 | <DL> |
---|
| 1342 | <DD><B>Deprecated.</B> <DD>Construct a map/reduce job configuration. |
---|
| 1343 | <P> |
---|
| 1344 | <DL> |
---|
| 1345 | <DT><B>Parameters:</B><DD><CODE>conf</CODE> - a Configuration whose settings will be inherited.</DL> |
---|
| 1346 | </DL> |
---|
| 1347 | <HR> |
---|
| 1348 | |
---|
| 1349 | <A NAME="JobConf(org.apache.hadoop.conf.Configuration, java.lang.Class)"><!-- --></A><H3> |
---|
| 1350 | JobConf</H3> |
---|
| 1351 | <PRE> |
---|
| 1352 | public <B>JobConf</B>(<A HREF="../../../../org/apache/hadoop/conf/Configuration.html" title="class in org.apache.hadoop.conf">Configuration</A> conf, |
---|
| 1353 | <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A> exampleClass)</PRE> |
---|
| 1354 | <DL> |
---|
| 1355 | <DD><B>Deprecated.</B> <DD>Construct a map/reduce job configuration. |
---|
| 1356 | <P> |
---|
| 1357 | <DL> |
---|
| 1358 | <DT><B>Parameters:</B><DD><CODE>conf</CODE> - a Configuration whose settings will be inherited.<DD><CODE>exampleClass</CODE> - a class whose containing jar is used as the job's jar.</DL> |
---|
| 1359 | </DL> |
---|
| 1360 | <HR> |
---|
| 1361 | |
---|
| 1362 | <A NAME="JobConf(java.lang.String)"><!-- --></A><H3> |
---|
| 1363 | JobConf</H3> |
---|
| 1364 | <PRE> |
---|
| 1365 | public <B>JobConf</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> config)</PRE> |
---|
| 1366 | <DL> |
---|
| 1367 | <DD><B>Deprecated.</B> <DD>Construct a map/reduce configuration. |
---|
| 1368 | <P> |
---|
| 1369 | <DL> |
---|
| 1370 | <DT><B>Parameters:</B><DD><CODE>config</CODE> - a Configuration-format XML job description file.</DL> |
---|
| 1371 | </DL> |
---|
| 1372 | <HR> |
---|
| 1373 | |
---|
| 1374 | <A NAME="JobConf(org.apache.hadoop.fs.Path)"><!-- --></A><H3> |
---|
| 1375 | JobConf</H3> |
---|
| 1376 | <PRE> |
---|
| 1377 | public <B>JobConf</B>(<A HREF="../../../../org/apache/hadoop/fs/Path.html" title="class in org.apache.hadoop.fs">Path</A> config)</PRE> |
---|
| 1378 | <DL> |
---|
| 1379 | <DD><B>Deprecated.</B> <DD>Construct a map/reduce configuration. |
---|
| 1380 | <P> |
---|
| 1381 | <DL> |
---|
| 1382 | <DT><B>Parameters:</B><DD><CODE>config</CODE> - a Configuration-format XML job description file.</DL> |
---|
| 1383 | </DL> |
---|
| 1384 | <HR> |
---|
| 1385 | |
---|
| 1386 | <A NAME="JobConf(boolean)"><!-- --></A><H3> |
---|
| 1387 | JobConf</H3> |
---|
| 1388 | <PRE> |
---|
| 1389 | public <B>JobConf</B>(boolean loadDefaults)</PRE> |
---|
| 1390 | <DL> |
---|
| 1391 | <DD><B>Deprecated.</B> <DD>A new map/reduce configuration where the behavior of reading from the |
---|
| 1392 | default resources can be turned off. |
---|
| 1393 | <p/> |
---|
| 1394 | If the parameter <code>loadDefaults</code> is false, the new instance |
---|
| 1395 | will not load resources from the default files. |
---|
| 1396 | <P> |
---|
| 1397 | <DL> |
---|
| 1398 | <DT><B>Parameters:</B><DD><CODE>loadDefaults</CODE> - specifies whether to load from the default files</DL> |
---|
| 1399 | </DL> |
---|
| 1400 | |
---|
| 1401 | <!-- ============ METHOD DETAIL ========== --> |
---|
| 1402 | |
---|
| 1403 | <A NAME="method_detail"><!-- --></A> |
---|
| 1404 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
---|
| 1405 | <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
---|
| 1406 | <TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> |
---|
| 1407 | <B>Method Detail</B></FONT></TH> |
---|
| 1408 | </TR> |
---|
| 1409 | </TABLE> |
---|
| 1410 | |
---|
| 1411 | <A NAME="getJar()"><!-- --></A><H3> |
---|
| 1412 | getJar</H3> |
---|
| 1413 | <PRE> |
---|
| 1414 | public <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>getJar</B>()</PRE> |
---|
| 1415 | <DL> |
---|
| 1416 | <DD><B>Deprecated.</B> <DD>Get the user jar for the map-reduce job. |
---|
| 1417 | <P> |
---|
| 1418 | <DD><DL> |
---|
| 1419 | |
---|
| 1420 | <DT><B>Returns:</B><DD>the user jar for the map-reduce job.</DL> |
---|
| 1421 | </DD> |
---|
| 1422 | </DL> |
---|
| 1423 | <HR> |
---|
| 1424 | |
---|
| 1425 | <A NAME="setJar(java.lang.String)"><!-- --></A><H3> |
---|
| 1426 | setJar</H3> |
---|
| 1427 | <PRE> |
---|
| 1428 | public void <B>setJar</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> jar)</PRE> |
---|
| 1429 | <DL> |
---|
| 1430 | <DD><B>Deprecated.</B> <DD>Set the user jar for the map-reduce job. |
---|
| 1431 | <P> |
---|
| 1432 | <DD><DL> |
---|
| 1433 | <DT><B>Parameters:</B><DD><CODE>jar</CODE> - the user jar for the map-reduce job.</DL> |
---|
| 1434 | </DD> |
---|
| 1435 | </DL> |
---|
| 1436 | <HR> |
---|
| 1437 | |
---|
| 1438 | <A NAME="setJarByClass(java.lang.Class)"><!-- --></A><H3> |
---|
| 1439 | setJarByClass</H3> |
---|
| 1440 | <PRE> |
---|
| 1441 | public void <B>setJarByClass</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A> cls)</PRE> |
---|
| 1442 | <DL> |
---|
| 1443 | <DD><B>Deprecated.</B> <DD>Set the job's jar file by finding an example class location. |
---|
| 1444 | <P> |
---|
| 1445 | <DD><DL> |
---|
| 1446 | <DT><B>Parameters:</B><DD><CODE>cls</CODE> - the example class.</DL> |
---|
| 1447 | </DD> |
---|
| 1448 | </DL> |
---|
| 1449 | <HR> |
---|
| 1450 | |
---|
| 1451 | <A NAME="getLocalDirs()"><!-- --></A><H3> |
---|
| 1452 | getLocalDirs</H3> |
---|
| 1453 | <PRE> |
---|
| 1454 | public <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>[] <B>getLocalDirs</B>() |
---|
| 1455 | throws <A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE> |
---|
| 1456 | <DL> |
---|
| 1457 | <DD><B>Deprecated.</B> <DD><DL> |
---|
| 1458 | |
---|
| 1459 | <DT><B>Throws:</B> |
---|
| 1460 | <DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE></DL> |
---|
| 1461 | </DD> |
---|
| 1462 | </DL> |
---|
| 1463 | <HR> |
---|
| 1464 | |
---|
| 1465 | <A NAME="deleteLocalFiles()"><!-- --></A><H3> |
---|
| 1466 | deleteLocalFiles</H3> |
---|
| 1467 | <PRE> |
---|
| 1468 | public void <B>deleteLocalFiles</B>() |
---|
| 1469 | throws <A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE> |
---|
| 1470 | <DL> |
---|
| 1471 | <DD><B>Deprecated.</B> <DD><DL> |
---|
| 1472 | |
---|
| 1473 | <DT><B>Throws:</B> |
---|
| 1474 | <DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE></DL> |
---|
| 1475 | </DD> |
---|
| 1476 | </DL> |
---|
| 1477 | <HR> |
---|
| 1478 | |
---|
| 1479 | <A NAME="deleteLocalFiles(java.lang.String)"><!-- --></A><H3> |
---|
| 1480 | deleteLocalFiles</H3> |
---|
| 1481 | <PRE> |
---|
| 1482 | public void <B>deleteLocalFiles</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> subdir) |
---|
| 1483 | throws <A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE> |
---|
| 1484 | <DL> |
---|
| 1485 | <DD><B>Deprecated.</B> <DD><DL> |
---|
| 1486 | |
---|
| 1487 | <DT><B>Throws:</B> |
---|
| 1488 | <DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE></DL> |
---|
| 1489 | </DD> |
---|
| 1490 | </DL> |
---|
| 1491 | <HR> |
---|
| 1492 | |
---|
| 1493 | <A NAME="getLocalPath(java.lang.String)"><!-- --></A><H3> |
---|
| 1494 | getLocalPath</H3> |
---|
| 1495 | <PRE> |
---|
| 1496 | public <A HREF="../../../../org/apache/hadoop/fs/Path.html" title="class in org.apache.hadoop.fs">Path</A> <B>getLocalPath</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> pathString) |
---|
| 1497 | throws <A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE> |
---|
| 1498 | <DL> |
---|
| 1499 | <DD><B>Deprecated.</B> <DD>Constructs a local file name. Files are distributed among configured |
---|
| 1500 | local directories. |
---|
| 1501 | <P> |
---|
| 1502 | <DD><DL> |
---|
| 1503 | |
---|
| 1504 | <DT><B>Throws:</B> |
---|
| 1505 | <DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE></DL> |
---|
| 1506 | </DD> |
---|
| 1507 | </DL> |
---|
| 1508 | <HR> |
---|
| 1509 | |
---|
| 1510 | <A NAME="getUser()"><!-- --></A><H3> |
---|
| 1511 | getUser</H3> |
---|
| 1512 | <PRE> |
---|
| 1513 | public <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>getUser</B>()</PRE> |
---|
| 1514 | <DL> |
---|
| 1515 | <DD><B>Deprecated.</B> <DD>Get the reported username for this job. |
---|
| 1516 | <P> |
---|
| 1517 | <DD><DL> |
---|
| 1518 | |
---|
| 1519 | <DT><B>Returns:</B><DD>the username</DL> |
---|
| 1520 | </DD> |
---|
| 1521 | </DL> |
---|
| 1522 | <HR> |
---|
| 1523 | |
---|
| 1524 | <A NAME="setUser(java.lang.String)"><!-- --></A><H3> |
---|
| 1525 | setUser</H3> |
---|
| 1526 | <PRE> |
---|
| 1527 | public void <B>setUser</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> user)</PRE> |
---|
| 1528 | <DL> |
---|
| 1529 | <DD><B>Deprecated.</B> <DD>Set the reported username for this job. |
---|
| 1530 | <P> |
---|
| 1531 | <DD><DL> |
---|
| 1532 | <DT><B>Parameters:</B><DD><CODE>user</CODE> - the username for this job.</DL> |
---|
| 1533 | </DD> |
---|
| 1534 | </DL> |
---|
| 1535 | <HR> |
---|
| 1536 | |
---|
| 1537 | <A NAME="setKeepFailedTaskFiles(boolean)"><!-- --></A><H3> |
---|
| 1538 | setKeepFailedTaskFiles</H3> |
---|
| 1539 | <PRE> |
---|
| 1540 | public void <B>setKeepFailedTaskFiles</B>(boolean keep)</PRE> |
---|
| 1541 | <DL> |
---|
| 1542 | <DD><B>Deprecated.</B> <DD>Set whether the framework should keep the intermediate files for |
---|
| 1543 | failed tasks. |
---|
| 1544 | <P> |
---|
| 1545 | <DD><DL> |
---|
| 1546 | <DT><B>Parameters:</B><DD><CODE>keep</CODE> - <code>true</code> if framework should keep the intermediate files |
---|
| 1547 | for failed tasks, <code>false</code> otherwise.</DL> |
---|
| 1548 | </DD> |
---|
| 1549 | </DL> |
---|
| 1550 | <HR> |
---|
| 1551 | |
---|
| 1552 | <A NAME="getKeepFailedTaskFiles()"><!-- --></A><H3> |
---|
| 1553 | getKeepFailedTaskFiles</H3> |
---|
| 1554 | <PRE> |
---|
| 1555 | public boolean <B>getKeepFailedTaskFiles</B>()</PRE> |
---|
| 1556 | <DL> |
---|
| 1557 | <DD><B>Deprecated.</B> <DD>Should the temporary files for failed tasks be kept? |
---|
| 1558 | <P> |
---|
| 1559 | <DD><DL> |
---|
| 1560 | |
---|
| 1561 | <DT><B>Returns:</B><DD>should the files be kept?</DL> |
---|
| 1562 | </DD> |
---|
| 1563 | </DL> |
---|
| 1564 | <HR> |
---|
| 1565 | |
---|
| 1566 | <A NAME="setKeepTaskFilesPattern(java.lang.String)"><!-- --></A><H3> |
---|
| 1567 | setKeepTaskFilesPattern</H3> |
---|
| 1568 | <PRE> |
---|
| 1569 | public void <B>setKeepTaskFilesPattern</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> pattern)</PRE> |
---|
| 1570 | <DL> |
---|
| 1571 | <DD><B>Deprecated.</B> <DD>Set a regular expression for task names that should be kept. |
---|
| 1572 | The regular expression ".*_m_000123_0" would keep the files |
---|
| 1573 | for the first instance of map 123 that ran. |
---|
| 1574 | <P> |
---|
| 1575 | <DD><DL> |
---|
| 1576 | <DT><B>Parameters:</B><DD><CODE>pattern</CODE> - the java.util.regex.Pattern to match against the |
---|
| 1577 | task names.</DL> |
---|
| 1578 | </DD> |
---|
| 1579 | </DL> |
---|
| 1580 | <HR> |
---|
| 1581 | |
---|
| 1582 | <A NAME="getKeepTaskFilesPattern()"><!-- --></A><H3> |
---|
| 1583 | getKeepTaskFilesPattern</H3> |
---|
| 1584 | <PRE> |
---|
| 1585 | public <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>getKeepTaskFilesPattern</B>()</PRE> |
---|
| 1586 | <DL> |
---|
| 1587 | <DD><B>Deprecated.</B> <DD>Get the regular expression that is matched against the task names |
---|
| 1588 | to see if we need to keep the files. |
---|
| 1589 | <P> |
---|
| 1590 | <DD><DL> |
---|
| 1591 | |
---|
| 1592 | <DT><B>Returns:</B><DD>the pattern as a string, if it was set, othewise null.</DL> |
---|
| 1593 | </DD> |
---|
| 1594 | </DL> |
---|
| 1595 | <HR> |
---|
| 1596 | |
---|
| 1597 | <A NAME="setWorkingDirectory(org.apache.hadoop.fs.Path)"><!-- --></A><H3> |
---|
| 1598 | setWorkingDirectory</H3> |
---|
| 1599 | <PRE> |
---|
| 1600 | public void <B>setWorkingDirectory</B>(<A HREF="../../../../org/apache/hadoop/fs/Path.html" title="class in org.apache.hadoop.fs">Path</A> dir)</PRE> |
---|
| 1601 | <DL> |
---|
| 1602 | <DD><B>Deprecated.</B> <DD>Set the current working directory for the default file system. |
---|
| 1603 | <P> |
---|
| 1604 | <DD><DL> |
---|
| 1605 | <DT><B>Parameters:</B><DD><CODE>dir</CODE> - the new current working directory.</DL> |
---|
| 1606 | </DD> |
---|
| 1607 | </DL> |
---|
| 1608 | <HR> |
---|
| 1609 | |
---|
| 1610 | <A NAME="getWorkingDirectory()"><!-- --></A><H3> |
---|
| 1611 | getWorkingDirectory</H3> |
---|
| 1612 | <PRE> |
---|
| 1613 | public <A HREF="../../../../org/apache/hadoop/fs/Path.html" title="class in org.apache.hadoop.fs">Path</A> <B>getWorkingDirectory</B>()</PRE> |
---|
| 1614 | <DL> |
---|
| 1615 | <DD><B>Deprecated.</B> <DD>Get the current working directory for the default file system. |
---|
| 1616 | <P> |
---|
| 1617 | <DD><DL> |
---|
| 1618 | |
---|
| 1619 | <DT><B>Returns:</B><DD>the directory name.</DL> |
---|
| 1620 | </DD> |
---|
| 1621 | </DL> |
---|
| 1622 | <HR> |
---|
| 1623 | |
---|
| 1624 | <A NAME="setNumTasksToExecutePerJvm(int)"><!-- --></A><H3> |
---|
| 1625 | setNumTasksToExecutePerJvm</H3> |
---|
| 1626 | <PRE> |
---|
| 1627 | public void <B>setNumTasksToExecutePerJvm</B>(int numTasks)</PRE> |
---|
| 1628 | <DL> |
---|
| 1629 | <DD><B>Deprecated.</B> <DD>Sets the number of tasks that a spawned task JVM should run |
---|
| 1630 | before it exits |
---|
| 1631 | <P> |
---|
| 1632 | <DD><DL> |
---|
| 1633 | <DT><B>Parameters:</B><DD><CODE>numTasks</CODE> - the number of tasks to execute; defaults to 1; |
---|
| 1634 | -1 signifies no limit</DL> |
---|
| 1635 | </DD> |
---|
| 1636 | </DL> |
---|
| 1637 | <HR> |
---|
| 1638 | |
---|
| 1639 | <A NAME="getNumTasksToExecutePerJvm()"><!-- --></A><H3> |
---|
| 1640 | getNumTasksToExecutePerJvm</H3> |
---|
| 1641 | <PRE> |
---|
| 1642 | public int <B>getNumTasksToExecutePerJvm</B>()</PRE> |
---|
| 1643 | <DL> |
---|
| 1644 | <DD><B>Deprecated.</B> <DD>Get the number of tasks that a spawned JVM should execute |
---|
| 1645 | <P> |
---|
| 1646 | <DD><DL> |
---|
| 1647 | </DL> |
---|
| 1648 | </DD> |
---|
| 1649 | </DL> |
---|
| 1650 | <HR> |
---|
| 1651 | |
---|
| 1652 | <A NAME="getInputFormat()"><!-- --></A><H3> |
---|
| 1653 | getInputFormat</H3> |
---|
| 1654 | <PRE> |
---|
| 1655 | public <A HREF="../../../../org/apache/hadoop/mapred/InputFormat.html" title="interface in org.apache.hadoop.mapred">InputFormat</A> <B>getInputFormat</B>()</PRE> |
---|
| 1656 | <DL> |
---|
| 1657 | <DD><B>Deprecated.</B> <DD>Get the <A HREF="../../../../org/apache/hadoop/mapred/InputFormat.html" title="interface in org.apache.hadoop.mapred"><CODE>InputFormat</CODE></A> implementation for the map-reduce job, |
---|
| 1658 | defaults to <A HREF="../../../../org/apache/hadoop/mapred/TextInputFormat.html" title="class in org.apache.hadoop.mapred"><CODE>TextInputFormat</CODE></A> if not specified explicity. |
---|
| 1659 | <P> |
---|
| 1660 | <DD><DL> |
---|
| 1661 | |
---|
| 1662 | <DT><B>Returns:</B><DD>the <A HREF="../../../../org/apache/hadoop/mapred/InputFormat.html" title="interface in org.apache.hadoop.mapred"><CODE>InputFormat</CODE></A> implementation for the map-reduce job.</DL> |
---|
| 1663 | </DD> |
---|
| 1664 | </DL> |
---|
| 1665 | <HR> |
---|
| 1666 | |
---|
| 1667 | <A NAME="setInputFormat(java.lang.Class)"><!-- --></A><H3> |
---|
| 1668 | setInputFormat</H3> |
---|
| 1669 | <PRE> |
---|
| 1670 | public void <B>setInputFormat</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends <A HREF="../../../../org/apache/hadoop/mapred/InputFormat.html" title="interface in org.apache.hadoop.mapred">InputFormat</A>> theClass)</PRE> |
---|
| 1671 | <DL> |
---|
| 1672 | <DD><B>Deprecated.</B> <DD>Set the <A HREF="../../../../org/apache/hadoop/mapred/InputFormat.html" title="interface in org.apache.hadoop.mapred"><CODE>InputFormat</CODE></A> implementation for the map-reduce job. |
---|
| 1673 | <P> |
---|
| 1674 | <DD><DL> |
---|
| 1675 | <DT><B>Parameters:</B><DD><CODE>theClass</CODE> - the <A HREF="../../../../org/apache/hadoop/mapred/InputFormat.html" title="interface in org.apache.hadoop.mapred"><CODE>InputFormat</CODE></A> implementation for the map-reduce |
---|
| 1676 | job.</DL> |
---|
| 1677 | </DD> |
---|
| 1678 | </DL> |
---|
| 1679 | <HR> |
---|
| 1680 | |
---|
| 1681 | <A NAME="getOutputFormat()"><!-- --></A><H3> |
---|
| 1682 | getOutputFormat</H3> |
---|
| 1683 | <PRE> |
---|
| 1684 | public <A HREF="../../../../org/apache/hadoop/mapred/OutputFormat.html" title="interface in org.apache.hadoop.mapred">OutputFormat</A> <B>getOutputFormat</B>()</PRE> |
---|
| 1685 | <DL> |
---|
| 1686 | <DD><B>Deprecated.</B> <DD>Get the <A HREF="../../../../org/apache/hadoop/mapred/OutputFormat.html" title="interface in org.apache.hadoop.mapred"><CODE>OutputFormat</CODE></A> implementation for the map-reduce job, |
---|
| 1687 | defaults to <A HREF="../../../../org/apache/hadoop/mapred/TextOutputFormat.html" title="class in org.apache.hadoop.mapred"><CODE>TextOutputFormat</CODE></A> if not specified explicity. |
---|
| 1688 | <P> |
---|
| 1689 | <DD><DL> |
---|
| 1690 | |
---|
| 1691 | <DT><B>Returns:</B><DD>the <A HREF="../../../../org/apache/hadoop/mapred/OutputFormat.html" title="interface in org.apache.hadoop.mapred"><CODE>OutputFormat</CODE></A> implementation for the map-reduce job.</DL> |
---|
| 1692 | </DD> |
---|
| 1693 | </DL> |
---|
| 1694 | <HR> |
---|
| 1695 | |
---|
| 1696 | <A NAME="getOutputCommitter()"><!-- --></A><H3> |
---|
| 1697 | getOutputCommitter</H3> |
---|
| 1698 | <PRE> |
---|
| 1699 | public <A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html" title="class in org.apache.hadoop.mapred">OutputCommitter</A> <B>getOutputCommitter</B>()</PRE> |
---|
| 1700 | <DL> |
---|
| 1701 | <DD><B>Deprecated.</B> <DD>Get the <A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html" title="class in org.apache.hadoop.mapred"><CODE>OutputCommitter</CODE></A> implementation for the map-reduce job, |
---|
| 1702 | defaults to <A HREF="../../../../org/apache/hadoop/mapred/FileOutputCommitter.html" title="class in org.apache.hadoop.mapred"><CODE>FileOutputCommitter</CODE></A> if not specified explicitly. |
---|
| 1703 | <P> |
---|
| 1704 | <DD><DL> |
---|
| 1705 | |
---|
| 1706 | <DT><B>Returns:</B><DD>the <A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html" title="class in org.apache.hadoop.mapred"><CODE>OutputCommitter</CODE></A> implementation for the map-reduce job.</DL> |
---|
| 1707 | </DD> |
---|
| 1708 | </DL> |
---|
| 1709 | <HR> |
---|
| 1710 | |
---|
| 1711 | <A NAME="setOutputCommitter(java.lang.Class)"><!-- --></A><H3> |
---|
| 1712 | setOutputCommitter</H3> |
---|
| 1713 | <PRE> |
---|
| 1714 | public void <B>setOutputCommitter</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends <A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html" title="class in org.apache.hadoop.mapred">OutputCommitter</A>> theClass)</PRE> |
---|
| 1715 | <DL> |
---|
| 1716 | <DD><B>Deprecated.</B> <DD>Set the <A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html" title="class in org.apache.hadoop.mapred"><CODE>OutputCommitter</CODE></A> implementation for the map-reduce job. |
---|
| 1717 | <P> |
---|
| 1718 | <DD><DL> |
---|
| 1719 | <DT><B>Parameters:</B><DD><CODE>theClass</CODE> - the <A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html" title="class in org.apache.hadoop.mapred"><CODE>OutputCommitter</CODE></A> implementation for the map-reduce |
---|
| 1720 | job.</DL> |
---|
| 1721 | </DD> |
---|
| 1722 | </DL> |
---|
| 1723 | <HR> |
---|
| 1724 | |
---|
| 1725 | <A NAME="setOutputFormat(java.lang.Class)"><!-- --></A><H3> |
---|
| 1726 | setOutputFormat</H3> |
---|
| 1727 | <PRE> |
---|
| 1728 | public void <B>setOutputFormat</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends <A HREF="../../../../org/apache/hadoop/mapred/OutputFormat.html" title="interface in org.apache.hadoop.mapred">OutputFormat</A>> theClass)</PRE> |
---|
| 1729 | <DL> |
---|
| 1730 | <DD><B>Deprecated.</B> <DD>Set the <A HREF="../../../../org/apache/hadoop/mapred/OutputFormat.html" title="interface in org.apache.hadoop.mapred"><CODE>OutputFormat</CODE></A> implementation for the map-reduce job. |
---|
| 1731 | <P> |
---|
| 1732 | <DD><DL> |
---|
| 1733 | <DT><B>Parameters:</B><DD><CODE>theClass</CODE> - the <A HREF="../../../../org/apache/hadoop/mapred/OutputFormat.html" title="interface in org.apache.hadoop.mapred"><CODE>OutputFormat</CODE></A> implementation for the map-reduce |
---|
| 1734 | job.</DL> |
---|
| 1735 | </DD> |
---|
| 1736 | </DL> |
---|
| 1737 | <HR> |
---|
| 1738 | |
---|
| 1739 | <A NAME="setCompressMapOutput(boolean)"><!-- --></A><H3> |
---|
| 1740 | setCompressMapOutput</H3> |
---|
| 1741 | <PRE> |
---|
| 1742 | public void <B>setCompressMapOutput</B>(boolean compress)</PRE> |
---|
| 1743 | <DL> |
---|
| 1744 | <DD><B>Deprecated.</B> <DD>Should the map outputs be compressed before transfer? |
---|
| 1745 | Uses the SequenceFile compression. |
---|
| 1746 | <P> |
---|
| 1747 | <DD><DL> |
---|
| 1748 | <DT><B>Parameters:</B><DD><CODE>compress</CODE> - should the map outputs be compressed?</DL> |
---|
| 1749 | </DD> |
---|
| 1750 | </DL> |
---|
| 1751 | <HR> |
---|
| 1752 | |
---|
| 1753 | <A NAME="getCompressMapOutput()"><!-- --></A><H3> |
---|
| 1754 | getCompressMapOutput</H3> |
---|
| 1755 | <PRE> |
---|
| 1756 | public boolean <B>getCompressMapOutput</B>()</PRE> |
---|
| 1757 | <DL> |
---|
| 1758 | <DD><B>Deprecated.</B> <DD>Are the outputs of the maps be compressed? |
---|
| 1759 | <P> |
---|
| 1760 | <DD><DL> |
---|
| 1761 | |
---|
| 1762 | <DT><B>Returns:</B><DD><code>true</code> if the outputs of the maps are to be compressed, |
---|
| 1763 | <code>false</code> otherwise.</DL> |
---|
| 1764 | </DD> |
---|
| 1765 | </DL> |
---|
| 1766 | <HR> |
---|
| 1767 | |
---|
| 1768 | <A NAME="setMapOutputCompressorClass(java.lang.Class)"><!-- --></A><H3> |
---|
| 1769 | setMapOutputCompressorClass</H3> |
---|
| 1770 | <PRE> |
---|
| 1771 | public void <B>setMapOutputCompressorClass</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends <A HREF="../../../../org/apache/hadoop/io/compress/CompressionCodec.html" title="interface in org.apache.hadoop.io.compress">CompressionCodec</A>> codecClass)</PRE> |
---|
| 1772 | <DL> |
---|
| 1773 | <DD><B>Deprecated.</B> <DD>Set the given class as the <A HREF="../../../../org/apache/hadoop/io/compress/CompressionCodec.html" title="interface in org.apache.hadoop.io.compress"><CODE>CompressionCodec</CODE></A> for the map outputs. |
---|
| 1774 | <P> |
---|
| 1775 | <DD><DL> |
---|
| 1776 | <DT><B>Parameters:</B><DD><CODE>codecClass</CODE> - the <A HREF="../../../../org/apache/hadoop/io/compress/CompressionCodec.html" title="interface in org.apache.hadoop.io.compress"><CODE>CompressionCodec</CODE></A> class that will compress |
---|
| 1777 | the map outputs.</DL> |
---|
| 1778 | </DD> |
---|
| 1779 | </DL> |
---|
| 1780 | <HR> |
---|
| 1781 | |
---|
| 1782 | <A NAME="getMapOutputCompressorClass(java.lang.Class)"><!-- --></A><H3> |
---|
| 1783 | getMapOutputCompressorClass</H3> |
---|
| 1784 | <PRE> |
---|
| 1785 | public <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends <A HREF="../../../../org/apache/hadoop/io/compress/CompressionCodec.html" title="interface in org.apache.hadoop.io.compress">CompressionCodec</A>> <B>getMapOutputCompressorClass</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends <A HREF="../../../../org/apache/hadoop/io/compress/CompressionCodec.html" title="interface in org.apache.hadoop.io.compress">CompressionCodec</A>> defaultValue)</PRE> |
---|
| 1786 | <DL> |
---|
| 1787 | <DD><B>Deprecated.</B> <DD>Get the <A HREF="../../../../org/apache/hadoop/io/compress/CompressionCodec.html" title="interface in org.apache.hadoop.io.compress"><CODE>CompressionCodec</CODE></A> for compressing the map outputs. |
---|
| 1788 | <P> |
---|
| 1789 | <DD><DL> |
---|
| 1790 | <DT><B>Parameters:</B><DD><CODE>defaultValue</CODE> - the <A HREF="../../../../org/apache/hadoop/io/compress/CompressionCodec.html" title="interface in org.apache.hadoop.io.compress"><CODE>CompressionCodec</CODE></A> to return if not set |
---|
| 1791 | <DT><B>Returns:</B><DD>the <A HREF="../../../../org/apache/hadoop/io/compress/CompressionCodec.html" title="interface in org.apache.hadoop.io.compress"><CODE>CompressionCodec</CODE></A> class that should be used to compress the |
---|
| 1792 | map outputs. |
---|
| 1793 | <DT><B>Throws:</B> |
---|
| 1794 | <DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</A></CODE> - if the class was specified, but not found</DL> |
---|
| 1795 | </DD> |
---|
| 1796 | </DL> |
---|
| 1797 | <HR> |
---|
| 1798 | |
---|
| 1799 | <A NAME="getMapOutputKeyClass()"><!-- --></A><H3> |
---|
| 1800 | getMapOutputKeyClass</H3> |
---|
| 1801 | <PRE> |
---|
| 1802 | public <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><?> <B>getMapOutputKeyClass</B>()</PRE> |
---|
| 1803 | <DL> |
---|
| 1804 | <DD><B>Deprecated.</B> <DD>Get the key class for the map output data. If it is not set, use the |
---|
| 1805 | (final) output key class. This allows the map output key class to be |
---|
| 1806 | different than the final output key class. |
---|
| 1807 | <P> |
---|
| 1808 | <DD><DL> |
---|
| 1809 | |
---|
| 1810 | <DT><B>Returns:</B><DD>the map output key class.</DL> |
---|
| 1811 | </DD> |
---|
| 1812 | </DL> |
---|
| 1813 | <HR> |
---|
| 1814 | |
---|
| 1815 | <A NAME="setMapOutputKeyClass(java.lang.Class)"><!-- --></A><H3> |
---|
| 1816 | setMapOutputKeyClass</H3> |
---|
| 1817 | <PRE> |
---|
| 1818 | public void <B>setMapOutputKeyClass</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><?> theClass)</PRE> |
---|
| 1819 | <DL> |
---|
| 1820 | <DD><B>Deprecated.</B> <DD>Set the key class for the map output data. This allows the user to |
---|
| 1821 | specify the map output key class to be different than the final output |
---|
| 1822 | value class. |
---|
| 1823 | <P> |
---|
| 1824 | <DD><DL> |
---|
| 1825 | <DT><B>Parameters:</B><DD><CODE>theClass</CODE> - the map output key class.</DL> |
---|
| 1826 | </DD> |
---|
| 1827 | </DL> |
---|
| 1828 | <HR> |
---|
| 1829 | |
---|
| 1830 | <A NAME="getMapOutputValueClass()"><!-- --></A><H3> |
---|
| 1831 | getMapOutputValueClass</H3> |
---|
| 1832 | <PRE> |
---|
| 1833 | public <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><?> <B>getMapOutputValueClass</B>()</PRE> |
---|
| 1834 | <DL> |
---|
| 1835 | <DD><B>Deprecated.</B> <DD>Get the value class for the map output data. If it is not set, use the |
---|
| 1836 | (final) output value class This allows the map output value class to be |
---|
| 1837 | different than the final output value class. |
---|
| 1838 | <P> |
---|
| 1839 | <DD><DL> |
---|
| 1840 | |
---|
| 1841 | <DT><B>Returns:</B><DD>the map output value class.</DL> |
---|
| 1842 | </DD> |
---|
| 1843 | </DL> |
---|
| 1844 | <HR> |
---|
| 1845 | |
---|
| 1846 | <A NAME="setMapOutputValueClass(java.lang.Class)"><!-- --></A><H3> |
---|
| 1847 | setMapOutputValueClass</H3> |
---|
| 1848 | <PRE> |
---|
| 1849 | public void <B>setMapOutputValueClass</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><?> theClass)</PRE> |
---|
| 1850 | <DL> |
---|
| 1851 | <DD><B>Deprecated.</B> <DD>Set the value class for the map output data. This allows the user to |
---|
| 1852 | specify the map output value class to be different than the final output |
---|
| 1853 | value class. |
---|
| 1854 | <P> |
---|
| 1855 | <DD><DL> |
---|
| 1856 | <DT><B>Parameters:</B><DD><CODE>theClass</CODE> - the map output value class.</DL> |
---|
| 1857 | </DD> |
---|
| 1858 | </DL> |
---|
| 1859 | <HR> |
---|
| 1860 | |
---|
| 1861 | <A NAME="getOutputKeyClass()"><!-- --></A><H3> |
---|
| 1862 | getOutputKeyClass</H3> |
---|
| 1863 | <PRE> |
---|
| 1864 | public <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><?> <B>getOutputKeyClass</B>()</PRE> |
---|
| 1865 | <DL> |
---|
| 1866 | <DD><B>Deprecated.</B> <DD>Get the key class for the job output data. |
---|
| 1867 | <P> |
---|
| 1868 | <DD><DL> |
---|
| 1869 | |
---|
| 1870 | <DT><B>Returns:</B><DD>the key class for the job output data.</DL> |
---|
| 1871 | </DD> |
---|
| 1872 | </DL> |
---|
| 1873 | <HR> |
---|
| 1874 | |
---|
| 1875 | <A NAME="setOutputKeyClass(java.lang.Class)"><!-- --></A><H3> |
---|
| 1876 | setOutputKeyClass</H3> |
---|
| 1877 | <PRE> |
---|
| 1878 | public void <B>setOutputKeyClass</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><?> theClass)</PRE> |
---|
| 1879 | <DL> |
---|
| 1880 | <DD><B>Deprecated.</B> <DD>Set the key class for the job output data. |
---|
| 1881 | <P> |
---|
| 1882 | <DD><DL> |
---|
| 1883 | <DT><B>Parameters:</B><DD><CODE>theClass</CODE> - the key class for the job output data.</DL> |
---|
| 1884 | </DD> |
---|
| 1885 | </DL> |
---|
| 1886 | <HR> |
---|
| 1887 | |
---|
| 1888 | <A NAME="getOutputKeyComparator()"><!-- --></A><H3> |
---|
| 1889 | getOutputKeyComparator</H3> |
---|
| 1890 | <PRE> |
---|
| 1891 | public <A HREF="../../../../org/apache/hadoop/io/RawComparator.html" title="interface in org.apache.hadoop.io">RawComparator</A> <B>getOutputKeyComparator</B>()</PRE> |
---|
| 1892 | <DL> |
---|
| 1893 | <DD><B>Deprecated.</B> <DD>Get the <A HREF="../../../../org/apache/hadoop/io/RawComparator.html" title="interface in org.apache.hadoop.io"><CODE>RawComparator</CODE></A> comparator used to compare keys. |
---|
| 1894 | <P> |
---|
| 1895 | <DD><DL> |
---|
| 1896 | |
---|
| 1897 | <DT><B>Returns:</B><DD>the <A HREF="../../../../org/apache/hadoop/io/RawComparator.html" title="interface in org.apache.hadoop.io"><CODE>RawComparator</CODE></A> comparator used to compare keys.</DL> |
---|
| 1898 | </DD> |
---|
| 1899 | </DL> |
---|
| 1900 | <HR> |
---|
| 1901 | |
---|
| 1902 | <A NAME="setOutputKeyComparatorClass(java.lang.Class)"><!-- --></A><H3> |
---|
| 1903 | setOutputKeyComparatorClass</H3> |
---|
| 1904 | <PRE> |
---|
| 1905 | public void <B>setOutputKeyComparatorClass</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends <A HREF="../../../../org/apache/hadoop/io/RawComparator.html" title="interface in org.apache.hadoop.io">RawComparator</A>> theClass)</PRE> |
---|
| 1906 | <DL> |
---|
| 1907 | <DD><B>Deprecated.</B> <DD>Set the <A HREF="../../../../org/apache/hadoop/io/RawComparator.html" title="interface in org.apache.hadoop.io"><CODE>RawComparator</CODE></A> comparator used to compare keys. |
---|
| 1908 | <P> |
---|
| 1909 | <DD><DL> |
---|
| 1910 | <DT><B>Parameters:</B><DD><CODE>theClass</CODE> - the <A HREF="../../../../org/apache/hadoop/io/RawComparator.html" title="interface in org.apache.hadoop.io"><CODE>RawComparator</CODE></A> comparator used to |
---|
| 1911 | compare keys.<DT><B>See Also:</B><DD><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setOutputValueGroupingComparator(java.lang.Class)"><CODE>setOutputValueGroupingComparator(Class)</CODE></A></DL> |
---|
| 1912 | </DD> |
---|
| 1913 | </DL> |
---|
| 1914 | <HR> |
---|
| 1915 | |
---|
| 1916 | <A NAME="setKeyFieldComparatorOptions(java.lang.String)"><!-- --></A><H3> |
---|
| 1917 | setKeyFieldComparatorOptions</H3> |
---|
| 1918 | <PRE> |
---|
| 1919 | public void <B>setKeyFieldComparatorOptions</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> keySpec)</PRE> |
---|
| 1920 | <DL> |
---|
| 1921 | <DD><B>Deprecated.</B> <DD>Set the <A HREF="../../../../org/apache/hadoop/mapred/lib/KeyFieldBasedComparator.html" title="class in org.apache.hadoop.mapred.lib"><CODE>KeyFieldBasedComparator</CODE></A> options used to compare keys. |
---|
| 1922 | <P> |
---|
| 1923 | <DD><DL> |
---|
| 1924 | <DT><B>Parameters:</B><DD><CODE>keySpec</CODE> - the key specification of the form -k pos1[,pos2], where, |
---|
| 1925 | pos is of the form f[.c][opts], where f is the number |
---|
| 1926 | of the key field to use, and c is the number of the first character from |
---|
| 1927 | the beginning of the field. Fields and character posns are numbered |
---|
| 1928 | starting with 1; a character position of zero in pos2 indicates the |
---|
| 1929 | field's last character. If '.c' is omitted from pos1, it defaults to 1 |
---|
| 1930 | (the beginning of the field); if omitted from pos2, it defaults to 0 |
---|
| 1931 | (the end of the field). opts are ordering options. The supported options |
---|
| 1932 | are: |
---|
| 1933 | -n, (Sort numerically) |
---|
| 1934 | -r, (Reverse the result of comparison)</DL> |
---|
| 1935 | </DD> |
---|
| 1936 | </DL> |
---|
| 1937 | <HR> |
---|
| 1938 | |
---|
| 1939 | <A NAME="getKeyFieldComparatorOption()"><!-- --></A><H3> |
---|
| 1940 | getKeyFieldComparatorOption</H3> |
---|
| 1941 | <PRE> |
---|
| 1942 | public <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>getKeyFieldComparatorOption</B>()</PRE> |
---|
| 1943 | <DL> |
---|
| 1944 | <DD><B>Deprecated.</B> <DD>Get the <A HREF="../../../../org/apache/hadoop/mapred/lib/KeyFieldBasedComparator.html" title="class in org.apache.hadoop.mapred.lib"><CODE>KeyFieldBasedComparator</CODE></A> options |
---|
| 1945 | <P> |
---|
| 1946 | <DD><DL> |
---|
| 1947 | </DL> |
---|
| 1948 | </DD> |
---|
| 1949 | </DL> |
---|
| 1950 | <HR> |
---|
| 1951 | |
---|
| 1952 | <A NAME="setKeyFieldPartitionerOptions(java.lang.String)"><!-- --></A><H3> |
---|
| 1953 | setKeyFieldPartitionerOptions</H3> |
---|
| 1954 | <PRE> |
---|
| 1955 | public void <B>setKeyFieldPartitionerOptions</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> keySpec)</PRE> |
---|
| 1956 | <DL> |
---|
| 1957 | <DD><B>Deprecated.</B> <DD>Set the <A HREF="../../../../org/apache/hadoop/mapred/lib/KeyFieldBasedPartitioner.html" title="class in org.apache.hadoop.mapred.lib"><CODE>KeyFieldBasedPartitioner</CODE></A> options used for |
---|
| 1958 | <A HREF="../../../../org/apache/hadoop/mapred/Partitioner.html" title="interface in org.apache.hadoop.mapred"><CODE>Partitioner</CODE></A> |
---|
| 1959 | <P> |
---|
| 1960 | <DD><DL> |
---|
| 1961 | <DT><B>Parameters:</B><DD><CODE>keySpec</CODE> - the key specification of the form -k pos1[,pos2], where, |
---|
| 1962 | pos is of the form f[.c][opts], where f is the number |
---|
| 1963 | of the key field to use, and c is the number of the first character from |
---|
| 1964 | the beginning of the field. Fields and character posns are numbered |
---|
| 1965 | starting with 1; a character position of zero in pos2 indicates the |
---|
| 1966 | field's last character. If '.c' is omitted from pos1, it defaults to 1 |
---|
| 1967 | (the beginning of the field); if omitted from pos2, it defaults to 0 |
---|
| 1968 | (the end of the field).</DL> |
---|
| 1969 | </DD> |
---|
| 1970 | </DL> |
---|
| 1971 | <HR> |
---|
| 1972 | |
---|
| 1973 | <A NAME="getKeyFieldPartitionerOption()"><!-- --></A><H3> |
---|
| 1974 | getKeyFieldPartitionerOption</H3> |
---|
| 1975 | <PRE> |
---|
| 1976 | public <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>getKeyFieldPartitionerOption</B>()</PRE> |
---|
| 1977 | <DL> |
---|
| 1978 | <DD><B>Deprecated.</B> <DD>Get the <A HREF="../../../../org/apache/hadoop/mapred/lib/KeyFieldBasedPartitioner.html" title="class in org.apache.hadoop.mapred.lib"><CODE>KeyFieldBasedPartitioner</CODE></A> options |
---|
| 1979 | <P> |
---|
| 1980 | <DD><DL> |
---|
| 1981 | </DL> |
---|
| 1982 | </DD> |
---|
| 1983 | </DL> |
---|
| 1984 | <HR> |
---|
| 1985 | |
---|
| 1986 | <A NAME="getOutputValueGroupingComparator()"><!-- --></A><H3> |
---|
| 1987 | getOutputValueGroupingComparator</H3> |
---|
| 1988 | <PRE> |
---|
| 1989 | public <A HREF="../../../../org/apache/hadoop/io/RawComparator.html" title="interface in org.apache.hadoop.io">RawComparator</A> <B>getOutputValueGroupingComparator</B>()</PRE> |
---|
| 1990 | <DL> |
---|
| 1991 | <DD><B>Deprecated.</B> <DD>Get the user defined <A HREF="../../../../org/apache/hadoop/io/WritableComparable.html" title="interface in org.apache.hadoop.io"><CODE>WritableComparable</CODE></A> comparator for |
---|
| 1992 | grouping keys of inputs to the reduce. |
---|
| 1993 | <P> |
---|
| 1994 | <DD><DL> |
---|
| 1995 | |
---|
| 1996 | <DT><B>Returns:</B><DD>comparator set by the user for grouping values.<DT><B>See Also:</B><DD><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setOutputValueGroupingComparator(java.lang.Class)"><CODE>for details.</CODE></A></DL> |
---|
| 1997 | </DD> |
---|
| 1998 | </DL> |
---|
| 1999 | <HR> |
---|
| 2000 | |
---|
| 2001 | <A NAME="setOutputValueGroupingComparator(java.lang.Class)"><!-- --></A><H3> |
---|
| 2002 | setOutputValueGroupingComparator</H3> |
---|
| 2003 | <PRE> |
---|
| 2004 | public void <B>setOutputValueGroupingComparator</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends <A HREF="../../../../org/apache/hadoop/io/RawComparator.html" title="interface in org.apache.hadoop.io">RawComparator</A>> theClass)</PRE> |
---|
| 2005 | <DL> |
---|
| 2006 | <DD><B>Deprecated.</B> <DD>Set the user defined <A HREF="../../../../org/apache/hadoop/io/RawComparator.html" title="interface in org.apache.hadoop.io"><CODE>RawComparator</CODE></A> comparator for |
---|
| 2007 | grouping keys in the input to the reduce. |
---|
| 2008 | |
---|
| 2009 | <p>This comparator should be provided if the equivalence rules for keys |
---|
| 2010 | for sorting the intermediates are different from those for grouping keys |
---|
| 2011 | before each call to |
---|
| 2012 | <A HREF="../../../../org/apache/hadoop/mapred/Reducer.html#reduce(K2, java.util.Iterator, org.apache.hadoop.mapred.OutputCollector, org.apache.hadoop.mapred.Reporter)"><CODE>Reducer.reduce(Object, java.util.Iterator, OutputCollector, Reporter)</CODE></A>.</p> |
---|
| 2013 | |
---|
| 2014 | <p>For key-value pairs (K1,V1) and (K2,V2), the values (V1, V2) are passed |
---|
| 2015 | in a single call to the reduce function if K1 and K2 compare as equal.</p> |
---|
| 2016 | |
---|
| 2017 | <p>Since <A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setOutputKeyComparatorClass(java.lang.Class)"><CODE>setOutputKeyComparatorClass(Class)</CODE></A> can be used to control |
---|
| 2018 | how keys are sorted, this can be used in conjunction to simulate |
---|
| 2019 | <i>secondary sort on values</i>.</p> |
---|
| 2020 | |
---|
| 2021 | <p><i>Note</i>: This is not a guarantee of the reduce sort being |
---|
| 2022 | <i>stable</i> in any sense. (In any case, with the order of available |
---|
| 2023 | map-outputs to the reduce being non-deterministic, it wouldn't make |
---|
| 2024 | that much sense.)</p> |
---|
| 2025 | <P> |
---|
| 2026 | <DD><DL> |
---|
| 2027 | <DT><B>Parameters:</B><DD><CODE>theClass</CODE> - the comparator class to be used for grouping keys. |
---|
| 2028 | It should implement <code>RawComparator</code>.<DT><B>See Also:</B><DD><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setOutputKeyComparatorClass(java.lang.Class)"><CODE>setOutputKeyComparatorClass(Class)</CODE></A></DL> |
---|
| 2029 | </DD> |
---|
| 2030 | </DL> |
---|
| 2031 | <HR> |
---|
| 2032 | |
---|
| 2033 | <A NAME="getUseNewMapper()"><!-- --></A><H3> |
---|
| 2034 | getUseNewMapper</H3> |
---|
| 2035 | <PRE> |
---|
| 2036 | public boolean <B>getUseNewMapper</B>()</PRE> |
---|
| 2037 | <DL> |
---|
| 2038 | <DD><B>Deprecated.</B> <DD>Should the framework use the new context-object code for running |
---|
| 2039 | the mapper? |
---|
| 2040 | <P> |
---|
| 2041 | <DD><DL> |
---|
| 2042 | |
---|
| 2043 | <DT><B>Returns:</B><DD>true, if the new api should be used</DL> |
---|
| 2044 | </DD> |
---|
| 2045 | </DL> |
---|
| 2046 | <HR> |
---|
| 2047 | |
---|
| 2048 | <A NAME="setUseNewMapper(boolean)"><!-- --></A><H3> |
---|
| 2049 | setUseNewMapper</H3> |
---|
| 2050 | <PRE> |
---|
| 2051 | public void <B>setUseNewMapper</B>(boolean flag)</PRE> |
---|
| 2052 | <DL> |
---|
| 2053 | <DD><B>Deprecated.</B> <DD>Set whether the framework should use the new api for the mapper. |
---|
| 2054 | This is the default for jobs submitted with the new Job api. |
---|
| 2055 | <P> |
---|
| 2056 | <DD><DL> |
---|
| 2057 | <DT><B>Parameters:</B><DD><CODE>flag</CODE> - true, if the new api should be used</DL> |
---|
| 2058 | </DD> |
---|
| 2059 | </DL> |
---|
| 2060 | <HR> |
---|
| 2061 | |
---|
| 2062 | <A NAME="getUseNewReducer()"><!-- --></A><H3> |
---|
| 2063 | getUseNewReducer</H3> |
---|
| 2064 | <PRE> |
---|
| 2065 | public boolean <B>getUseNewReducer</B>()</PRE> |
---|
| 2066 | <DL> |
---|
| 2067 | <DD><B>Deprecated.</B> <DD>Should the framework use the new context-object code for running |
---|
| 2068 | the reducer? |
---|
| 2069 | <P> |
---|
| 2070 | <DD><DL> |
---|
| 2071 | |
---|
| 2072 | <DT><B>Returns:</B><DD>true, if the new api should be used</DL> |
---|
| 2073 | </DD> |
---|
| 2074 | </DL> |
---|
| 2075 | <HR> |
---|
| 2076 | |
---|
| 2077 | <A NAME="setUseNewReducer(boolean)"><!-- --></A><H3> |
---|
| 2078 | setUseNewReducer</H3> |
---|
| 2079 | <PRE> |
---|
| 2080 | public void <B>setUseNewReducer</B>(boolean flag)</PRE> |
---|
| 2081 | <DL> |
---|
| 2082 | <DD><B>Deprecated.</B> <DD>Set whether the framework should use the new api for the reducer. |
---|
| 2083 | This is the default for jobs submitted with the new Job api. |
---|
| 2084 | <P> |
---|
| 2085 | <DD><DL> |
---|
| 2086 | <DT><B>Parameters:</B><DD><CODE>flag</CODE> - true, if the new api should be used</DL> |
---|
| 2087 | </DD> |
---|
| 2088 | </DL> |
---|
| 2089 | <HR> |
---|
| 2090 | |
---|
| 2091 | <A NAME="getOutputValueClass()"><!-- --></A><H3> |
---|
| 2092 | getOutputValueClass</H3> |
---|
| 2093 | <PRE> |
---|
| 2094 | public <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><?> <B>getOutputValueClass</B>()</PRE> |
---|
| 2095 | <DL> |
---|
| 2096 | <DD><B>Deprecated.</B> <DD>Get the value class for job outputs. |
---|
| 2097 | <P> |
---|
| 2098 | <DD><DL> |
---|
| 2099 | |
---|
| 2100 | <DT><B>Returns:</B><DD>the value class for job outputs.</DL> |
---|
| 2101 | </DD> |
---|
| 2102 | </DL> |
---|
| 2103 | <HR> |
---|
| 2104 | |
---|
| 2105 | <A NAME="setOutputValueClass(java.lang.Class)"><!-- --></A><H3> |
---|
| 2106 | setOutputValueClass</H3> |
---|
| 2107 | <PRE> |
---|
| 2108 | public void <B>setOutputValueClass</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><?> theClass)</PRE> |
---|
| 2109 | <DL> |
---|
| 2110 | <DD><B>Deprecated.</B> <DD>Set the value class for job outputs. |
---|
| 2111 | <P> |
---|
| 2112 | <DD><DL> |
---|
| 2113 | <DT><B>Parameters:</B><DD><CODE>theClass</CODE> - the value class for job outputs.</DL> |
---|
| 2114 | </DD> |
---|
| 2115 | </DL> |
---|
| 2116 | <HR> |
---|
| 2117 | |
---|
| 2118 | <A NAME="getMapperClass()"><!-- --></A><H3> |
---|
| 2119 | getMapperClass</H3> |
---|
| 2120 | <PRE> |
---|
| 2121 | public <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends <A HREF="../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred">Mapper</A>> <B>getMapperClass</B>()</PRE> |
---|
| 2122 | <DL> |
---|
| 2123 | <DD><B>Deprecated.</B> <DD>Get the <A HREF="../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred"><CODE>Mapper</CODE></A> class for the job. |
---|
| 2124 | <P> |
---|
| 2125 | <DD><DL> |
---|
| 2126 | |
---|
| 2127 | <DT><B>Returns:</B><DD>the <A HREF="../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred"><CODE>Mapper</CODE></A> class for the job.</DL> |
---|
| 2128 | </DD> |
---|
| 2129 | </DL> |
---|
| 2130 | <HR> |
---|
| 2131 | |
---|
| 2132 | <A NAME="setMapperClass(java.lang.Class)"><!-- --></A><H3> |
---|
| 2133 | setMapperClass</H3> |
---|
| 2134 | <PRE> |
---|
| 2135 | public void <B>setMapperClass</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends <A HREF="../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred">Mapper</A>> theClass)</PRE> |
---|
| 2136 | <DL> |
---|
| 2137 | <DD><B>Deprecated.</B> <DD>Set the <A HREF="../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred"><CODE>Mapper</CODE></A> class for the job. |
---|
| 2138 | <P> |
---|
| 2139 | <DD><DL> |
---|
| 2140 | <DT><B>Parameters:</B><DD><CODE>theClass</CODE> - the <A HREF="../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred"><CODE>Mapper</CODE></A> class for the job.</DL> |
---|
| 2141 | </DD> |
---|
| 2142 | </DL> |
---|
| 2143 | <HR> |
---|
| 2144 | |
---|
| 2145 | <A NAME="getMapRunnerClass()"><!-- --></A><H3> |
---|
| 2146 | getMapRunnerClass</H3> |
---|
| 2147 | <PRE> |
---|
| 2148 | public <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends <A HREF="../../../../org/apache/hadoop/mapred/MapRunnable.html" title="interface in org.apache.hadoop.mapred">MapRunnable</A>> <B>getMapRunnerClass</B>()</PRE> |
---|
| 2149 | <DL> |
---|
| 2150 | <DD><B>Deprecated.</B> <DD>Get the <A HREF="../../../../org/apache/hadoop/mapred/MapRunnable.html" title="interface in org.apache.hadoop.mapred"><CODE>MapRunnable</CODE></A> class for the job. |
---|
| 2151 | <P> |
---|
| 2152 | <DD><DL> |
---|
| 2153 | |
---|
| 2154 | <DT><B>Returns:</B><DD>the <A HREF="../../../../org/apache/hadoop/mapred/MapRunnable.html" title="interface in org.apache.hadoop.mapred"><CODE>MapRunnable</CODE></A> class for the job.</DL> |
---|
| 2155 | </DD> |
---|
| 2156 | </DL> |
---|
| 2157 | <HR> |
---|
| 2158 | |
---|
| 2159 | <A NAME="setMapRunnerClass(java.lang.Class)"><!-- --></A><H3> |
---|
| 2160 | setMapRunnerClass</H3> |
---|
| 2161 | <PRE> |
---|
| 2162 | public void <B>setMapRunnerClass</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends <A HREF="../../../../org/apache/hadoop/mapred/MapRunnable.html" title="interface in org.apache.hadoop.mapred">MapRunnable</A>> theClass)</PRE> |
---|
| 2163 | <DL> |
---|
| 2164 | <DD><B>Deprecated.</B> <DD>Expert: Set the <A HREF="../../../../org/apache/hadoop/mapred/MapRunnable.html" title="interface in org.apache.hadoop.mapred"><CODE>MapRunnable</CODE></A> class for the job. |
---|
| 2165 | |
---|
| 2166 | Typically used to exert greater control on <A HREF="../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred"><CODE>Mapper</CODE></A>s. |
---|
| 2167 | <P> |
---|
| 2168 | <DD><DL> |
---|
| 2169 | <DT><B>Parameters:</B><DD><CODE>theClass</CODE> - the <A HREF="../../../../org/apache/hadoop/mapred/MapRunnable.html" title="interface in org.apache.hadoop.mapred"><CODE>MapRunnable</CODE></A> class for the job.</DL> |
---|
| 2170 | </DD> |
---|
| 2171 | </DL> |
---|
| 2172 | <HR> |
---|
| 2173 | |
---|
| 2174 | <A NAME="getPartitionerClass()"><!-- --></A><H3> |
---|
| 2175 | getPartitionerClass</H3> |
---|
| 2176 | <PRE> |
---|
| 2177 | public <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends <A HREF="../../../../org/apache/hadoop/mapred/Partitioner.html" title="interface in org.apache.hadoop.mapred">Partitioner</A>> <B>getPartitionerClass</B>()</PRE> |
---|
| 2178 | <DL> |
---|
| 2179 | <DD><B>Deprecated.</B> <DD>Get the <A HREF="../../../../org/apache/hadoop/mapred/Partitioner.html" title="interface in org.apache.hadoop.mapred"><CODE>Partitioner</CODE></A> used to partition <A HREF="../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred"><CODE>Mapper</CODE></A>-outputs |
---|
| 2180 | to be sent to the <A HREF="../../../../org/apache/hadoop/mapred/Reducer.html" title="interface in org.apache.hadoop.mapred"><CODE>Reducer</CODE></A>s. |
---|
| 2181 | <P> |
---|
| 2182 | <DD><DL> |
---|
| 2183 | |
---|
| 2184 | <DT><B>Returns:</B><DD>the <A HREF="../../../../org/apache/hadoop/mapred/Partitioner.html" title="interface in org.apache.hadoop.mapred"><CODE>Partitioner</CODE></A> used to partition map-outputs.</DL> |
---|
| 2185 | </DD> |
---|
| 2186 | </DL> |
---|
| 2187 | <HR> |
---|
| 2188 | |
---|
| 2189 | <A NAME="setPartitionerClass(java.lang.Class)"><!-- --></A><H3> |
---|
| 2190 | setPartitionerClass</H3> |
---|
| 2191 | <PRE> |
---|
| 2192 | public void <B>setPartitionerClass</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends <A HREF="../../../../org/apache/hadoop/mapred/Partitioner.html" title="interface in org.apache.hadoop.mapred">Partitioner</A>> theClass)</PRE> |
---|
| 2193 | <DL> |
---|
| 2194 | <DD><B>Deprecated.</B> <DD>Set the <A HREF="../../../../org/apache/hadoop/mapred/Partitioner.html" title="interface in org.apache.hadoop.mapred"><CODE>Partitioner</CODE></A> class used to partition |
---|
| 2195 | <A HREF="../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred"><CODE>Mapper</CODE></A>-outputs to be sent to the <A HREF="../../../../org/apache/hadoop/mapred/Reducer.html" title="interface in org.apache.hadoop.mapred"><CODE>Reducer</CODE></A>s. |
---|
| 2196 | <P> |
---|
| 2197 | <DD><DL> |
---|
| 2198 | <DT><B>Parameters:</B><DD><CODE>theClass</CODE> - the <A HREF="../../../../org/apache/hadoop/mapred/Partitioner.html" title="interface in org.apache.hadoop.mapred"><CODE>Partitioner</CODE></A> used to partition map-outputs.</DL> |
---|
| 2199 | </DD> |
---|
| 2200 | </DL> |
---|
| 2201 | <HR> |
---|
| 2202 | |
---|
| 2203 | <A NAME="getReducerClass()"><!-- --></A><H3> |
---|
| 2204 | getReducerClass</H3> |
---|
| 2205 | <PRE> |
---|
| 2206 | public <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends <A HREF="../../../../org/apache/hadoop/mapred/Reducer.html" title="interface in org.apache.hadoop.mapred">Reducer</A>> <B>getReducerClass</B>()</PRE> |
---|
| 2207 | <DL> |
---|
| 2208 | <DD><B>Deprecated.</B> <DD>Get the <A HREF="../../../../org/apache/hadoop/mapred/Reducer.html" title="interface in org.apache.hadoop.mapred"><CODE>Reducer</CODE></A> class for the job. |
---|
| 2209 | <P> |
---|
| 2210 | <DD><DL> |
---|
| 2211 | |
---|
| 2212 | <DT><B>Returns:</B><DD>the <A HREF="../../../../org/apache/hadoop/mapred/Reducer.html" title="interface in org.apache.hadoop.mapred"><CODE>Reducer</CODE></A> class for the job.</DL> |
---|
| 2213 | </DD> |
---|
| 2214 | </DL> |
---|
| 2215 | <HR> |
---|
| 2216 | |
---|
| 2217 | <A NAME="setReducerClass(java.lang.Class)"><!-- --></A><H3> |
---|
| 2218 | setReducerClass</H3> |
---|
| 2219 | <PRE> |
---|
| 2220 | public void <B>setReducerClass</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends <A HREF="../../../../org/apache/hadoop/mapred/Reducer.html" title="interface in org.apache.hadoop.mapred">Reducer</A>> theClass)</PRE> |
---|
| 2221 | <DL> |
---|
| 2222 | <DD><B>Deprecated.</B> <DD>Set the <A HREF="../../../../org/apache/hadoop/mapred/Reducer.html" title="interface in org.apache.hadoop.mapred"><CODE>Reducer</CODE></A> class for the job. |
---|
| 2223 | <P> |
---|
| 2224 | <DD><DL> |
---|
| 2225 | <DT><B>Parameters:</B><DD><CODE>theClass</CODE> - the <A HREF="../../../../org/apache/hadoop/mapred/Reducer.html" title="interface in org.apache.hadoop.mapred"><CODE>Reducer</CODE></A> class for the job.</DL> |
---|
| 2226 | </DD> |
---|
| 2227 | </DL> |
---|
| 2228 | <HR> |
---|
| 2229 | |
---|
| 2230 | <A NAME="getCombinerClass()"><!-- --></A><H3> |
---|
| 2231 | getCombinerClass</H3> |
---|
| 2232 | <PRE> |
---|
| 2233 | public <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends <A HREF="../../../../org/apache/hadoop/mapred/Reducer.html" title="interface in org.apache.hadoop.mapred">Reducer</A>> <B>getCombinerClass</B>()</PRE> |
---|
| 2234 | <DL> |
---|
| 2235 | <DD><B>Deprecated.</B> <DD>Get the user-defined <i>combiner</i> class used to combine map-outputs |
---|
| 2236 | before being sent to the reducers. Typically the combiner is same as the |
---|
| 2237 | the <A HREF="../../../../org/apache/hadoop/mapred/Reducer.html" title="interface in org.apache.hadoop.mapred"><CODE>Reducer</CODE></A> for the job i.e. <A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getReducerClass()"><CODE>getReducerClass()</CODE></A>. |
---|
| 2238 | <P> |
---|
| 2239 | <DD><DL> |
---|
| 2240 | |
---|
| 2241 | <DT><B>Returns:</B><DD>the user-defined combiner class used to combine map-outputs.</DL> |
---|
| 2242 | </DD> |
---|
| 2243 | </DL> |
---|
| 2244 | <HR> |
---|
| 2245 | |
---|
| 2246 | <A NAME="setCombinerClass(java.lang.Class)"><!-- --></A><H3> |
---|
| 2247 | setCombinerClass</H3> |
---|
| 2248 | <PRE> |
---|
| 2249 | public void <B>setCombinerClass</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends <A HREF="../../../../org/apache/hadoop/mapred/Reducer.html" title="interface in org.apache.hadoop.mapred">Reducer</A>> theClass)</PRE> |
---|
| 2250 | <DL> |
---|
| 2251 | <DD><B>Deprecated.</B> <DD>Set the user-defined <i>combiner</i> class used to combine map-outputs |
---|
| 2252 | before being sent to the reducers. |
---|
| 2253 | |
---|
| 2254 | <p>The combiner is an application-specified aggregation operation, which |
---|
| 2255 | can help cut down the amount of data transferred between the |
---|
| 2256 | <A HREF="../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred"><CODE>Mapper</CODE></A> and the <A HREF="../../../../org/apache/hadoop/mapred/Reducer.html" title="interface in org.apache.hadoop.mapred"><CODE>Reducer</CODE></A>, leading to better performance.</p> |
---|
| 2257 | |
---|
| 2258 | <p>The framework may invoke the combiner 0, 1, or multiple times, in both |
---|
| 2259 | the mapper and reducer tasks. In general, the combiner is called as the |
---|
| 2260 | sort/merge result is written to disk. The combiner must: |
---|
| 2261 | <ul> |
---|
| 2262 | <li> be side-effect free</li> |
---|
| 2263 | <li> have the same input and output key types and the same input and |
---|
| 2264 | output value types</li> |
---|
| 2265 | </ul></p> |
---|
| 2266 | |
---|
| 2267 | <p>Typically the combiner is same as the <code>Reducer</code> for the |
---|
| 2268 | job i.e. <A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setReducerClass(java.lang.Class)"><CODE>setReducerClass(Class)</CODE></A>.</p> |
---|
| 2269 | <P> |
---|
| 2270 | <DD><DL> |
---|
| 2271 | <DT><B>Parameters:</B><DD><CODE>theClass</CODE> - the user-defined combiner class used to combine |
---|
| 2272 | map-outputs.</DL> |
---|
| 2273 | </DD> |
---|
| 2274 | </DL> |
---|
| 2275 | <HR> |
---|
| 2276 | |
---|
| 2277 | <A NAME="getSpeculativeExecution()"><!-- --></A><H3> |
---|
| 2278 | getSpeculativeExecution</H3> |
---|
| 2279 | <PRE> |
---|
| 2280 | public boolean <B>getSpeculativeExecution</B>()</PRE> |
---|
| 2281 | <DL> |
---|
| 2282 | <DD><B>Deprecated.</B> <DD>Should speculative execution be used for this job? |
---|
| 2283 | Defaults to <code>true</code>. |
---|
| 2284 | <P> |
---|
| 2285 | <DD><DL> |
---|
| 2286 | |
---|
| 2287 | <DT><B>Returns:</B><DD><code>true</code> if speculative execution be used for this job, |
---|
| 2288 | <code>false</code> otherwise.</DL> |
---|
| 2289 | </DD> |
---|
| 2290 | </DL> |
---|
| 2291 | <HR> |
---|
| 2292 | |
---|
| 2293 | <A NAME="setSpeculativeExecution(boolean)"><!-- --></A><H3> |
---|
| 2294 | setSpeculativeExecution</H3> |
---|
| 2295 | <PRE> |
---|
| 2296 | public void <B>setSpeculativeExecution</B>(boolean speculativeExecution)</PRE> |
---|
| 2297 | <DL> |
---|
| 2298 | <DD><B>Deprecated.</B> <DD>Turn speculative execution on or off for this job. |
---|
| 2299 | <P> |
---|
| 2300 | <DD><DL> |
---|
| 2301 | <DT><B>Parameters:</B><DD><CODE>speculativeExecution</CODE> - <code>true</code> if speculative execution |
---|
| 2302 | should be turned on, else <code>false</code>.</DL> |
---|
| 2303 | </DD> |
---|
| 2304 | </DL> |
---|
| 2305 | <HR> |
---|
| 2306 | |
---|
| 2307 | <A NAME="getMapSpeculativeExecution()"><!-- --></A><H3> |
---|
| 2308 | getMapSpeculativeExecution</H3> |
---|
| 2309 | <PRE> |
---|
| 2310 | public boolean <B>getMapSpeculativeExecution</B>()</PRE> |
---|
| 2311 | <DL> |
---|
| 2312 | <DD><B>Deprecated.</B> <DD>Should speculative execution be used for this job for map tasks? |
---|
| 2313 | Defaults to <code>true</code>. |
---|
| 2314 | <P> |
---|
| 2315 | <DD><DL> |
---|
| 2316 | |
---|
| 2317 | <DT><B>Returns:</B><DD><code>true</code> if speculative execution be |
---|
| 2318 | used for this job for map tasks, |
---|
| 2319 | <code>false</code> otherwise.</DL> |
---|
| 2320 | </DD> |
---|
| 2321 | </DL> |
---|
| 2322 | <HR> |
---|
| 2323 | |
---|
| 2324 | <A NAME="setMapSpeculativeExecution(boolean)"><!-- --></A><H3> |
---|
| 2325 | setMapSpeculativeExecution</H3> |
---|
| 2326 | <PRE> |
---|
| 2327 | public void <B>setMapSpeculativeExecution</B>(boolean speculativeExecution)</PRE> |
---|
| 2328 | <DL> |
---|
| 2329 | <DD><B>Deprecated.</B> <DD>Turn speculative execution on or off for this job for map tasks. |
---|
| 2330 | <P> |
---|
| 2331 | <DD><DL> |
---|
| 2332 | <DT><B>Parameters:</B><DD><CODE>speculativeExecution</CODE> - <code>true</code> if speculative execution |
---|
| 2333 | should be turned on for map tasks, |
---|
| 2334 | else <code>false</code>.</DL> |
---|
| 2335 | </DD> |
---|
| 2336 | </DL> |
---|
| 2337 | <HR> |
---|
| 2338 | |
---|
| 2339 | <A NAME="getReduceSpeculativeExecution()"><!-- --></A><H3> |
---|
| 2340 | getReduceSpeculativeExecution</H3> |
---|
| 2341 | <PRE> |
---|
| 2342 | public boolean <B>getReduceSpeculativeExecution</B>()</PRE> |
---|
| 2343 | <DL> |
---|
| 2344 | <DD><B>Deprecated.</B> <DD>Should speculative execution be used for this job for reduce tasks? |
---|
| 2345 | Defaults to <code>true</code>. |
---|
| 2346 | <P> |
---|
| 2347 | <DD><DL> |
---|
| 2348 | |
---|
| 2349 | <DT><B>Returns:</B><DD><code>true</code> if speculative execution be used |
---|
| 2350 | for reduce tasks for this job, |
---|
| 2351 | <code>false</code> otherwise.</DL> |
---|
| 2352 | </DD> |
---|
| 2353 | </DL> |
---|
| 2354 | <HR> |
---|
| 2355 | |
---|
| 2356 | <A NAME="setReduceSpeculativeExecution(boolean)"><!-- --></A><H3> |
---|
| 2357 | setReduceSpeculativeExecution</H3> |
---|
| 2358 | <PRE> |
---|
| 2359 | public void <B>setReduceSpeculativeExecution</B>(boolean speculativeExecution)</PRE> |
---|
| 2360 | <DL> |
---|
| 2361 | <DD><B>Deprecated.</B> <DD>Turn speculative execution on or off for this job for reduce tasks. |
---|
| 2362 | <P> |
---|
| 2363 | <DD><DL> |
---|
| 2364 | <DT><B>Parameters:</B><DD><CODE>speculativeExecution</CODE> - <code>true</code> if speculative execution |
---|
| 2365 | should be turned on for reduce tasks, |
---|
| 2366 | else <code>false</code>.</DL> |
---|
| 2367 | </DD> |
---|
| 2368 | </DL> |
---|
| 2369 | <HR> |
---|
| 2370 | |
---|
| 2371 | <A NAME="getNumMapTasks()"><!-- --></A><H3> |
---|
| 2372 | getNumMapTasks</H3> |
---|
| 2373 | <PRE> |
---|
| 2374 | public int <B>getNumMapTasks</B>()</PRE> |
---|
| 2375 | <DL> |
---|
| 2376 | <DD><B>Deprecated.</B> <DD>Get configured the number of reduce tasks for this job. |
---|
| 2377 | Defaults to <code>1</code>. |
---|
| 2378 | <P> |
---|
| 2379 | <DD><DL> |
---|
| 2380 | |
---|
| 2381 | <DT><B>Returns:</B><DD>the number of reduce tasks for this job.</DL> |
---|
| 2382 | </DD> |
---|
| 2383 | </DL> |
---|
| 2384 | <HR> |
---|
| 2385 | |
---|
| 2386 | <A NAME="setNumMapTasks(int)"><!-- --></A><H3> |
---|
| 2387 | setNumMapTasks</H3> |
---|
| 2388 | <PRE> |
---|
| 2389 | public void <B>setNumMapTasks</B>(int n)</PRE> |
---|
| 2390 | <DL> |
---|
| 2391 | <DD><B>Deprecated.</B> <DD>Set the number of map tasks for this job. |
---|
| 2392 | |
---|
| 2393 | <p><i>Note</i>: This is only a <i>hint</i> to the framework. The actual |
---|
| 2394 | number of spawned map tasks depends on the number of <A HREF="../../../../org/apache/hadoop/mapred/InputSplit.html" title="interface in org.apache.hadoop.mapred"><CODE>InputSplit</CODE></A>s |
---|
| 2395 | generated by the job's <A HREF="../../../../org/apache/hadoop/mapred/InputFormat.html#getSplits(org.apache.hadoop.mapred.JobConf, int)"><CODE>InputFormat.getSplits(JobConf, int)</CODE></A>. |
---|
| 2396 | |
---|
| 2397 | A custom <A HREF="../../../../org/apache/hadoop/mapred/InputFormat.html" title="interface in org.apache.hadoop.mapred"><CODE>InputFormat</CODE></A> is typically used to accurately control |
---|
| 2398 | the number of map tasks for the job.</p> |
---|
| 2399 | |
---|
| 2400 | <h4 id="NoOfMaps">How many maps?</h4> |
---|
| 2401 | |
---|
| 2402 | <p>The number of maps is usually driven by the total size of the inputs |
---|
| 2403 | i.e. total number of blocks of the input files.</p> |
---|
| 2404 | |
---|
| 2405 | <p>The right level of parallelism for maps seems to be around 10-100 maps |
---|
| 2406 | per-node, although it has been set up to 300 or so for very cpu-light map |
---|
| 2407 | tasks. Task setup takes awhile, so it is best if the maps take at least a |
---|
| 2408 | minute to execute.</p> |
---|
| 2409 | |
---|
| 2410 | <p>The default behavior of file-based <A HREF="../../../../org/apache/hadoop/mapred/InputFormat.html" title="interface in org.apache.hadoop.mapred"><CODE>InputFormat</CODE></A>s is to split the |
---|
| 2411 | input into <i>logical</i> <A HREF="../../../../org/apache/hadoop/mapred/InputSplit.html" title="interface in org.apache.hadoop.mapred"><CODE>InputSplit</CODE></A>s based on the total size, in |
---|
| 2412 | bytes, of input files. However, the <A HREF="../../../../org/apache/hadoop/fs/FileSystem.html" title="class in org.apache.hadoop.fs"><CODE>FileSystem</CODE></A> blocksize of the |
---|
| 2413 | input files is treated as an upper bound for input splits. A lower bound |
---|
| 2414 | on the split size can be set via |
---|
| 2415 | <a href="../../../../../mapred-default.html#mapred.min.split.size"> |
---|
| 2416 | mapred.min.split.size</a>.</p> |
---|
| 2417 | |
---|
| 2418 | <p>Thus, if you expect 10TB of input data and have a blocksize of 128MB, |
---|
| 2419 | you'll end up with 82,000 maps, unless <A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setNumMapTasks(int)"><CODE>setNumMapTasks(int)</CODE></A> is |
---|
| 2420 | used to set it even higher.</p> |
---|
| 2421 | <P> |
---|
| 2422 | <DD><DL> |
---|
| 2423 | <DT><B>Parameters:</B><DD><CODE>n</CODE> - the number of map tasks for this job.<DT><B>See Also:</B><DD><A HREF="../../../../org/apache/hadoop/mapred/InputFormat.html#getSplits(org.apache.hadoop.mapred.JobConf, int)"><CODE>InputFormat.getSplits(JobConf, int)</CODE></A>, |
---|
| 2424 | <A HREF="../../../../org/apache/hadoop/mapred/FileInputFormat.html" title="class in org.apache.hadoop.mapred"><CODE>FileInputFormat</CODE></A>, |
---|
| 2425 | <A HREF="../../../../org/apache/hadoop/fs/FileSystem.html#getDefaultBlockSize()"><CODE>FileSystem.getDefaultBlockSize()</CODE></A>, |
---|
| 2426 | <A HREF="../../../../org/apache/hadoop/fs/FileStatus.html#getBlockSize()"><CODE>FileStatus.getBlockSize()</CODE></A></DL> |
---|
| 2427 | </DD> |
---|
| 2428 | </DL> |
---|
| 2429 | <HR> |
---|
| 2430 | |
---|
| 2431 | <A NAME="getNumReduceTasks()"><!-- --></A><H3> |
---|
| 2432 | getNumReduceTasks</H3> |
---|
| 2433 | <PRE> |
---|
| 2434 | public int <B>getNumReduceTasks</B>()</PRE> |
---|
| 2435 | <DL> |
---|
| 2436 | <DD><B>Deprecated.</B> <DD>Get configured the number of reduce tasks for this job. Defaults to |
---|
| 2437 | <code>1</code>. |
---|
| 2438 | <P> |
---|
| 2439 | <DD><DL> |
---|
| 2440 | |
---|
| 2441 | <DT><B>Returns:</B><DD>the number of reduce tasks for this job.</DL> |
---|
| 2442 | </DD> |
---|
| 2443 | </DL> |
---|
| 2444 | <HR> |
---|
| 2445 | |
---|
| 2446 | <A NAME="setNumReduceTasks(int)"><!-- --></A><H3> |
---|
| 2447 | setNumReduceTasks</H3> |
---|
| 2448 | <PRE> |
---|
| 2449 | public void <B>setNumReduceTasks</B>(int n)</PRE> |
---|
| 2450 | <DL> |
---|
| 2451 | <DD><B>Deprecated.</B> <DD>Set the requisite number of reduce tasks for this job. |
---|
| 2452 | |
---|
| 2453 | <h4 id="NoOfReduces">How many reduces?</h4> |
---|
| 2454 | |
---|
| 2455 | <p>The right number of reduces seems to be <code>0.95</code> or |
---|
| 2456 | <code>1.75</code> multiplied by (<<i>no. of nodes</i>> * |
---|
| 2457 | <a href="../../../../../mapred-default.html#mapred.tasktracker.reduce.tasks.maximum"> |
---|
| 2458 | mapred.tasktracker.reduce.tasks.maximum</a>). |
---|
| 2459 | </p> |
---|
| 2460 | |
---|
| 2461 | <p>With <code>0.95</code> all of the reduces can launch immediately and |
---|
| 2462 | start transfering map outputs as the maps finish. With <code>1.75</code> |
---|
| 2463 | the faster nodes will finish their first round of reduces and launch a |
---|
| 2464 | second wave of reduces doing a much better job of load balancing.</p> |
---|
| 2465 | |
---|
| 2466 | <p>Increasing the number of reduces increases the framework overhead, but |
---|
| 2467 | increases load balancing and lowers the cost of failures.</p> |
---|
| 2468 | |
---|
| 2469 | <p>The scaling factors above are slightly less than whole numbers to |
---|
| 2470 | reserve a few reduce slots in the framework for speculative-tasks, failures |
---|
| 2471 | etc.</p> |
---|
| 2472 | |
---|
| 2473 | <h4 id="ReducerNone">Reducer NONE</h4> |
---|
| 2474 | |
---|
| 2475 | <p>It is legal to set the number of reduce-tasks to <code>zero</code>.</p> |
---|
| 2476 | |
---|
| 2477 | <p>In this case the output of the map-tasks directly go to distributed |
---|
| 2478 | file-system, to the path set by |
---|
| 2479 | <A HREF="../../../../org/apache/hadoop/mapred/FileOutputFormat.html#setOutputPath(org.apache.hadoop.mapred.JobConf, org.apache.hadoop.fs.Path)"><CODE>FileOutputFormat.setOutputPath(JobConf, Path)</CODE></A>. Also, the |
---|
| 2480 | framework doesn't sort the map-outputs before writing it out to HDFS.</p> |
---|
| 2481 | <P> |
---|
| 2482 | <DD><DL> |
---|
| 2483 | <DT><B>Parameters:</B><DD><CODE>n</CODE> - the number of reduce tasks for this job.</DL> |
---|
| 2484 | </DD> |
---|
| 2485 | </DL> |
---|
| 2486 | <HR> |
---|
| 2487 | |
---|
| 2488 | <A NAME="getMaxMapAttempts()"><!-- --></A><H3> |
---|
| 2489 | getMaxMapAttempts</H3> |
---|
| 2490 | <PRE> |
---|
| 2491 | public int <B>getMaxMapAttempts</B>()</PRE> |
---|
| 2492 | <DL> |
---|
| 2493 | <DD><B>Deprecated.</B> <DD>Get the configured number of maximum attempts that will be made to run a |
---|
| 2494 | map task, as specified by the <code>mapred.map.max.attempts</code> |
---|
| 2495 | property. If this property is not already set, the default is 4 attempts. |
---|
| 2496 | <P> |
---|
| 2497 | <DD><DL> |
---|
| 2498 | |
---|
| 2499 | <DT><B>Returns:</B><DD>the max number of attempts per map task.</DL> |
---|
| 2500 | </DD> |
---|
| 2501 | </DL> |
---|
| 2502 | <HR> |
---|
| 2503 | |
---|
| 2504 | <A NAME="setMaxMapAttempts(int)"><!-- --></A><H3> |
---|
| 2505 | setMaxMapAttempts</H3> |
---|
| 2506 | <PRE> |
---|
| 2507 | public void <B>setMaxMapAttempts</B>(int n)</PRE> |
---|
| 2508 | <DL> |
---|
| 2509 | <DD><B>Deprecated.</B> <DD>Expert: Set the number of maximum attempts that will be made to run a |
---|
| 2510 | map task. |
---|
| 2511 | <P> |
---|
| 2512 | <DD><DL> |
---|
| 2513 | <DT><B>Parameters:</B><DD><CODE>n</CODE> - the number of attempts per map task.</DL> |
---|
| 2514 | </DD> |
---|
| 2515 | </DL> |
---|
| 2516 | <HR> |
---|
| 2517 | |
---|
| 2518 | <A NAME="getMaxReduceAttempts()"><!-- --></A><H3> |
---|
| 2519 | getMaxReduceAttempts</H3> |
---|
| 2520 | <PRE> |
---|
| 2521 | public int <B>getMaxReduceAttempts</B>()</PRE> |
---|
| 2522 | <DL> |
---|
| 2523 | <DD><B>Deprecated.</B> <DD>Get the configured number of maximum attempts that will be made to run a |
---|
| 2524 | reduce task, as specified by the <code>mapred.reduce.max.attempts</code> |
---|
| 2525 | property. If this property is not already set, the default is 4 attempts. |
---|
| 2526 | <P> |
---|
| 2527 | <DD><DL> |
---|
| 2528 | |
---|
| 2529 | <DT><B>Returns:</B><DD>the max number of attempts per reduce task.</DL> |
---|
| 2530 | </DD> |
---|
| 2531 | </DL> |
---|
| 2532 | <HR> |
---|
| 2533 | |
---|
| 2534 | <A NAME="setMaxReduceAttempts(int)"><!-- --></A><H3> |
---|
| 2535 | setMaxReduceAttempts</H3> |
---|
| 2536 | <PRE> |
---|
| 2537 | public void <B>setMaxReduceAttempts</B>(int n)</PRE> |
---|
| 2538 | <DL> |
---|
| 2539 | <DD><B>Deprecated.</B> <DD>Expert: Set the number of maximum attempts that will be made to run a |
---|
| 2540 | reduce task. |
---|
| 2541 | <P> |
---|
| 2542 | <DD><DL> |
---|
| 2543 | <DT><B>Parameters:</B><DD><CODE>n</CODE> - the number of attempts per reduce task.</DL> |
---|
| 2544 | </DD> |
---|
| 2545 | </DL> |
---|
| 2546 | <HR> |
---|
| 2547 | |
---|
| 2548 | <A NAME="getJobName()"><!-- --></A><H3> |
---|
| 2549 | getJobName</H3> |
---|
| 2550 | <PRE> |
---|
| 2551 | public <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>getJobName</B>()</PRE> |
---|
| 2552 | <DL> |
---|
| 2553 | <DD><B>Deprecated.</B> <DD>Get the user-specified job name. This is only used to identify the |
---|
| 2554 | job to the user. |
---|
| 2555 | <P> |
---|
| 2556 | <DD><DL> |
---|
| 2557 | |
---|
| 2558 | <DT><B>Returns:</B><DD>the job's name, defaulting to "".</DL> |
---|
| 2559 | </DD> |
---|
| 2560 | </DL> |
---|
| 2561 | <HR> |
---|
| 2562 | |
---|
| 2563 | <A NAME="setJobName(java.lang.String)"><!-- --></A><H3> |
---|
| 2564 | setJobName</H3> |
---|
| 2565 | <PRE> |
---|
| 2566 | public void <B>setJobName</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name)</PRE> |
---|
| 2567 | <DL> |
---|
| 2568 | <DD><B>Deprecated.</B> <DD>Set the user-specified job name. |
---|
| 2569 | <P> |
---|
| 2570 | <DD><DL> |
---|
| 2571 | <DT><B>Parameters:</B><DD><CODE>name</CODE> - the job's new name.</DL> |
---|
| 2572 | </DD> |
---|
| 2573 | </DL> |
---|
| 2574 | <HR> |
---|
| 2575 | |
---|
| 2576 | <A NAME="getSessionId()"><!-- --></A><H3> |
---|
| 2577 | getSessionId</H3> |
---|
| 2578 | <PRE> |
---|
| 2579 | public <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>getSessionId</B>()</PRE> |
---|
| 2580 | <DL> |
---|
| 2581 | <DD><B>Deprecated.</B> <DD>Get the user-specified session identifier. The default is the empty string. |
---|
| 2582 | |
---|
| 2583 | The session identifier is used to tag metric data that is reported to some |
---|
| 2584 | performance metrics system via the org.apache.hadoop.metrics API. The |
---|
| 2585 | session identifier is intended, in particular, for use by Hadoop-On-Demand |
---|
| 2586 | (HOD) which allocates a virtual Hadoop cluster dynamically and transiently. |
---|
| 2587 | HOD will set the session identifier by modifying the mapred-site.xml file |
---|
| 2588 | before starting the cluster. |
---|
| 2589 | |
---|
| 2590 | When not running under HOD, this identifer is expected to remain set to |
---|
| 2591 | the empty string. |
---|
| 2592 | <P> |
---|
| 2593 | <DD><DL> |
---|
| 2594 | |
---|
| 2595 | <DT><B>Returns:</B><DD>the session identifier, defaulting to "".</DL> |
---|
| 2596 | </DD> |
---|
| 2597 | </DL> |
---|
| 2598 | <HR> |
---|
| 2599 | |
---|
| 2600 | <A NAME="setSessionId(java.lang.String)"><!-- --></A><H3> |
---|
| 2601 | setSessionId</H3> |
---|
| 2602 | <PRE> |
---|
| 2603 | public void <B>setSessionId</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> sessionId)</PRE> |
---|
| 2604 | <DL> |
---|
| 2605 | <DD><B>Deprecated.</B> <DD>Set the user-specified session identifier. |
---|
| 2606 | <P> |
---|
| 2607 | <DD><DL> |
---|
| 2608 | <DT><B>Parameters:</B><DD><CODE>sessionId</CODE> - the new session id.</DL> |
---|
| 2609 | </DD> |
---|
| 2610 | </DL> |
---|
| 2611 | <HR> |
---|
| 2612 | |
---|
| 2613 | <A NAME="setMaxTaskFailuresPerTracker(int)"><!-- --></A><H3> |
---|
| 2614 | setMaxTaskFailuresPerTracker</H3> |
---|
| 2615 | <PRE> |
---|
| 2616 | public void <B>setMaxTaskFailuresPerTracker</B>(int noFailures)</PRE> |
---|
| 2617 | <DL> |
---|
| 2618 | <DD><B>Deprecated.</B> <DD>Set the maximum no. of failures of a given job per tasktracker. |
---|
| 2619 | If the no. of task failures exceeds <code>noFailures</code>, the |
---|
| 2620 | tasktracker is <i>blacklisted</i> for this job. |
---|
| 2621 | <P> |
---|
| 2622 | <DD><DL> |
---|
| 2623 | <DT><B>Parameters:</B><DD><CODE>noFailures</CODE> - maximum no. of failures of a given job per tasktracker.</DL> |
---|
| 2624 | </DD> |
---|
| 2625 | </DL> |
---|
| 2626 | <HR> |
---|
| 2627 | |
---|
| 2628 | <A NAME="getMaxTaskFailuresPerTracker()"><!-- --></A><H3> |
---|
| 2629 | getMaxTaskFailuresPerTracker</H3> |
---|
| 2630 | <PRE> |
---|
| 2631 | public int <B>getMaxTaskFailuresPerTracker</B>()</PRE> |
---|
| 2632 | <DL> |
---|
| 2633 | <DD><B>Deprecated.</B> <DD>Expert: Get the maximum no. of failures of a given job per tasktracker. |
---|
| 2634 | If the no. of task failures exceeds this, the tasktracker is |
---|
| 2635 | <i>blacklisted</i> for this job. |
---|
| 2636 | <P> |
---|
| 2637 | <DD><DL> |
---|
| 2638 | |
---|
| 2639 | <DT><B>Returns:</B><DD>the maximum no. of failures of a given job per tasktracker.</DL> |
---|
| 2640 | </DD> |
---|
| 2641 | </DL> |
---|
| 2642 | <HR> |
---|
| 2643 | |
---|
| 2644 | <A NAME="getMaxMapTaskFailuresPercent()"><!-- --></A><H3> |
---|
| 2645 | getMaxMapTaskFailuresPercent</H3> |
---|
| 2646 | <PRE> |
---|
| 2647 | public int <B>getMaxMapTaskFailuresPercent</B>()</PRE> |
---|
| 2648 | <DL> |
---|
| 2649 | <DD><B>Deprecated.</B> <DD>Get the maximum percentage of map tasks that can fail without |
---|
| 2650 | the job being aborted. |
---|
| 2651 | |
---|
| 2652 | Each map task is executed a minimum of <A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getMaxMapAttempts()"><CODE>getMaxMapAttempts()</CODE></A> |
---|
| 2653 | attempts before being declared as <i>failed</i>. |
---|
| 2654 | |
---|
| 2655 | Defaults to <code>zero</code>, i.e. <i>any</i> failed map-task results in |
---|
| 2656 | the job being declared as <A HREF="../../../../org/apache/hadoop/mapred/JobStatus.html#FAILED"><CODE>JobStatus.FAILED</CODE></A>. |
---|
| 2657 | <P> |
---|
| 2658 | <DD><DL> |
---|
| 2659 | |
---|
| 2660 | <DT><B>Returns:</B><DD>the maximum percentage of map tasks that can fail without |
---|
| 2661 | the job being aborted.</DL> |
---|
| 2662 | </DD> |
---|
| 2663 | </DL> |
---|
| 2664 | <HR> |
---|
| 2665 | |
---|
| 2666 | <A NAME="setMaxMapTaskFailuresPercent(int)"><!-- --></A><H3> |
---|
| 2667 | setMaxMapTaskFailuresPercent</H3> |
---|
| 2668 | <PRE> |
---|
| 2669 | public void <B>setMaxMapTaskFailuresPercent</B>(int percent)</PRE> |
---|
| 2670 | <DL> |
---|
| 2671 | <DD><B>Deprecated.</B> <DD>Expert: Set the maximum percentage of map tasks that can fail without the |
---|
| 2672 | job being aborted. |
---|
| 2673 | |
---|
| 2674 | Each map task is executed a minimum of <A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getMaxMapAttempts()"><CODE>getMaxMapAttempts()</CODE></A> attempts |
---|
| 2675 | before being declared as <i>failed</i>. |
---|
| 2676 | <P> |
---|
| 2677 | <DD><DL> |
---|
| 2678 | <DT><B>Parameters:</B><DD><CODE>percent</CODE> - the maximum percentage of map tasks that can fail without |
---|
| 2679 | the job being aborted.</DL> |
---|
| 2680 | </DD> |
---|
| 2681 | </DL> |
---|
| 2682 | <HR> |
---|
| 2683 | |
---|
| 2684 | <A NAME="getMaxReduceTaskFailuresPercent()"><!-- --></A><H3> |
---|
| 2685 | getMaxReduceTaskFailuresPercent</H3> |
---|
| 2686 | <PRE> |
---|
| 2687 | public int <B>getMaxReduceTaskFailuresPercent</B>()</PRE> |
---|
| 2688 | <DL> |
---|
| 2689 | <DD><B>Deprecated.</B> <DD>Get the maximum percentage of reduce tasks that can fail without |
---|
| 2690 | the job being aborted. |
---|
| 2691 | |
---|
| 2692 | Each reduce task is executed a minimum of <A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getMaxReduceAttempts()"><CODE>getMaxReduceAttempts()</CODE></A> |
---|
| 2693 | attempts before being declared as <i>failed</i>. |
---|
| 2694 | |
---|
| 2695 | Defaults to <code>zero</code>, i.e. <i>any</i> failed reduce-task results |
---|
| 2696 | in the job being declared as <A HREF="../../../../org/apache/hadoop/mapred/JobStatus.html#FAILED"><CODE>JobStatus.FAILED</CODE></A>. |
---|
| 2697 | <P> |
---|
| 2698 | <DD><DL> |
---|
| 2699 | |
---|
| 2700 | <DT><B>Returns:</B><DD>the maximum percentage of reduce tasks that can fail without |
---|
| 2701 | the job being aborted.</DL> |
---|
| 2702 | </DD> |
---|
| 2703 | </DL> |
---|
| 2704 | <HR> |
---|
| 2705 | |
---|
| 2706 | <A NAME="setMaxReduceTaskFailuresPercent(int)"><!-- --></A><H3> |
---|
| 2707 | setMaxReduceTaskFailuresPercent</H3> |
---|
| 2708 | <PRE> |
---|
| 2709 | public void <B>setMaxReduceTaskFailuresPercent</B>(int percent)</PRE> |
---|
| 2710 | <DL> |
---|
| 2711 | <DD><B>Deprecated.</B> <DD>Set the maximum percentage of reduce tasks that can fail without the job |
---|
| 2712 | being aborted. |
---|
| 2713 | |
---|
| 2714 | Each reduce task is executed a minimum of <A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getMaxReduceAttempts()"><CODE>getMaxReduceAttempts()</CODE></A> |
---|
| 2715 | attempts before being declared as <i>failed</i>. |
---|
| 2716 | <P> |
---|
| 2717 | <DD><DL> |
---|
| 2718 | <DT><B>Parameters:</B><DD><CODE>percent</CODE> - the maximum percentage of reduce tasks that can fail without |
---|
| 2719 | the job being aborted.</DL> |
---|
| 2720 | </DD> |
---|
| 2721 | </DL> |
---|
| 2722 | <HR> |
---|
| 2723 | |
---|
| 2724 | <A NAME="setJobPriority(org.apache.hadoop.mapred.JobPriority)"><!-- --></A><H3> |
---|
| 2725 | setJobPriority</H3> |
---|
| 2726 | <PRE> |
---|
| 2727 | public void <B>setJobPriority</B>(<A HREF="../../../../org/apache/hadoop/mapred/JobPriority.html" title="enum in org.apache.hadoop.mapred">JobPriority</A> prio)</PRE> |
---|
| 2728 | <DL> |
---|
| 2729 | <DD><B>Deprecated.</B> <DD>Set <A HREF="../../../../org/apache/hadoop/mapred/JobPriority.html" title="enum in org.apache.hadoop.mapred"><CODE>JobPriority</CODE></A> for this job. |
---|
| 2730 | <P> |
---|
| 2731 | <DD><DL> |
---|
| 2732 | <DT><B>Parameters:</B><DD><CODE>prio</CODE> - the <A HREF="../../../../org/apache/hadoop/mapred/JobPriority.html" title="enum in org.apache.hadoop.mapred"><CODE>JobPriority</CODE></A> for this job.</DL> |
---|
| 2733 | </DD> |
---|
| 2734 | </DL> |
---|
| 2735 | <HR> |
---|
| 2736 | |
---|
| 2737 | <A NAME="getJobPriority()"><!-- --></A><H3> |
---|
| 2738 | getJobPriority</H3> |
---|
| 2739 | <PRE> |
---|
| 2740 | public <A HREF="../../../../org/apache/hadoop/mapred/JobPriority.html" title="enum in org.apache.hadoop.mapred">JobPriority</A> <B>getJobPriority</B>()</PRE> |
---|
| 2741 | <DL> |
---|
| 2742 | <DD><B>Deprecated.</B> <DD>Get the <A HREF="../../../../org/apache/hadoop/mapred/JobPriority.html" title="enum in org.apache.hadoop.mapred"><CODE>JobPriority</CODE></A> for this job. |
---|
| 2743 | <P> |
---|
| 2744 | <DD><DL> |
---|
| 2745 | |
---|
| 2746 | <DT><B>Returns:</B><DD>the <A HREF="../../../../org/apache/hadoop/mapred/JobPriority.html" title="enum in org.apache.hadoop.mapred"><CODE>JobPriority</CODE></A> for this job.</DL> |
---|
| 2747 | </DD> |
---|
| 2748 | </DL> |
---|
| 2749 | <HR> |
---|
| 2750 | |
---|
| 2751 | <A NAME="getProfileEnabled()"><!-- --></A><H3> |
---|
| 2752 | getProfileEnabled</H3> |
---|
| 2753 | <PRE> |
---|
| 2754 | public boolean <B>getProfileEnabled</B>()</PRE> |
---|
| 2755 | <DL> |
---|
| 2756 | <DD><B>Deprecated.</B> <DD>Get whether the task profiling is enabled. |
---|
| 2757 | <P> |
---|
| 2758 | <DD><DL> |
---|
| 2759 | |
---|
| 2760 | <DT><B>Returns:</B><DD>true if some tasks will be profiled</DL> |
---|
| 2761 | </DD> |
---|
| 2762 | </DL> |
---|
| 2763 | <HR> |
---|
| 2764 | |
---|
| 2765 | <A NAME="setProfileEnabled(boolean)"><!-- --></A><H3> |
---|
| 2766 | setProfileEnabled</H3> |
---|
| 2767 | <PRE> |
---|
| 2768 | public void <B>setProfileEnabled</B>(boolean newValue)</PRE> |
---|
| 2769 | <DL> |
---|
| 2770 | <DD><B>Deprecated.</B> <DD>Set whether the system should collect profiler information for some of |
---|
| 2771 | the tasks in this job? The information is stored in the user log |
---|
| 2772 | directory. |
---|
| 2773 | <P> |
---|
| 2774 | <DD><DL> |
---|
| 2775 | <DT><B>Parameters:</B><DD><CODE>newValue</CODE> - true means it should be gathered</DL> |
---|
| 2776 | </DD> |
---|
| 2777 | </DL> |
---|
| 2778 | <HR> |
---|
| 2779 | |
---|
| 2780 | <A NAME="getProfileParams()"><!-- --></A><H3> |
---|
| 2781 | getProfileParams</H3> |
---|
| 2782 | <PRE> |
---|
| 2783 | public <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>getProfileParams</B>()</PRE> |
---|
| 2784 | <DL> |
---|
| 2785 | <DD><B>Deprecated.</B> <DD>Get the profiler configuration arguments. |
---|
| 2786 | |
---|
| 2787 | The default value for this property is |
---|
| 2788 | "-agentlib:hprof=cpu=samples,heap=sites,force=n,thread=y,verbose=n,file=%s" |
---|
| 2789 | <P> |
---|
| 2790 | <DD><DL> |
---|
| 2791 | |
---|
| 2792 | <DT><B>Returns:</B><DD>the parameters to pass to the task child to configure profiling</DL> |
---|
| 2793 | </DD> |
---|
| 2794 | </DL> |
---|
| 2795 | <HR> |
---|
| 2796 | |
---|
| 2797 | <A NAME="setProfileParams(java.lang.String)"><!-- --></A><H3> |
---|
| 2798 | setProfileParams</H3> |
---|
| 2799 | <PRE> |
---|
| 2800 | public void <B>setProfileParams</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> value)</PRE> |
---|
| 2801 | <DL> |
---|
| 2802 | <DD><B>Deprecated.</B> <DD>Set the profiler configuration arguments. If the string contains a '%s' it |
---|
| 2803 | will be replaced with the name of the profiling output file when the task |
---|
| 2804 | runs. |
---|
| 2805 | |
---|
| 2806 | This value is passed to the task child JVM on the command line. |
---|
| 2807 | <P> |
---|
| 2808 | <DD><DL> |
---|
| 2809 | <DT><B>Parameters:</B><DD><CODE>value</CODE> - the configuration string</DL> |
---|
| 2810 | </DD> |
---|
| 2811 | </DL> |
---|
| 2812 | <HR> |
---|
| 2813 | |
---|
| 2814 | <A NAME="getProfileTaskRange(boolean)"><!-- --></A><H3> |
---|
| 2815 | getProfileTaskRange</H3> |
---|
| 2816 | <PRE> |
---|
| 2817 | public <A HREF="../../../../org/apache/hadoop/conf/Configuration.IntegerRanges.html" title="class in org.apache.hadoop.conf">Configuration.IntegerRanges</A> <B>getProfileTaskRange</B>(boolean isMap)</PRE> |
---|
| 2818 | <DL> |
---|
| 2819 | <DD><B>Deprecated.</B> <DD>Get the range of maps or reduces to profile. |
---|
| 2820 | <P> |
---|
| 2821 | <DD><DL> |
---|
| 2822 | <DT><B>Parameters:</B><DD><CODE>isMap</CODE> - is the task a map? |
---|
| 2823 | <DT><B>Returns:</B><DD>the task ranges</DL> |
---|
| 2824 | </DD> |
---|
| 2825 | </DL> |
---|
| 2826 | <HR> |
---|
| 2827 | |
---|
| 2828 | <A NAME="setProfileTaskRange(boolean, java.lang.String)"><!-- --></A><H3> |
---|
| 2829 | setProfileTaskRange</H3> |
---|
| 2830 | <PRE> |
---|
| 2831 | public void <B>setProfileTaskRange</B>(boolean isMap, |
---|
| 2832 | <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> newValue)</PRE> |
---|
| 2833 | <DL> |
---|
| 2834 | <DD><B>Deprecated.</B> <DD>Set the ranges of maps or reduces to profile. setProfileEnabled(true) |
---|
| 2835 | must also be called. |
---|
| 2836 | <P> |
---|
| 2837 | <DD><DL> |
---|
| 2838 | <DT><B>Parameters:</B><DD><CODE>newValue</CODE> - a set of integer ranges of the map ids</DL> |
---|
| 2839 | </DD> |
---|
| 2840 | </DL> |
---|
| 2841 | <HR> |
---|
| 2842 | |
---|
| 2843 | <A NAME="setMapDebugScript(java.lang.String)"><!-- --></A><H3> |
---|
| 2844 | setMapDebugScript</H3> |
---|
| 2845 | <PRE> |
---|
| 2846 | public void <B>setMapDebugScript</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> mDbgScript)</PRE> |
---|
| 2847 | <DL> |
---|
| 2848 | <DD><B>Deprecated.</B> <DD>Set the debug script to run when the map tasks fail. |
---|
| 2849 | |
---|
| 2850 | <p>The debug script can aid debugging of failed map tasks. The script is |
---|
| 2851 | given task's stdout, stderr, syslog, jobconf files as arguments.</p> |
---|
| 2852 | |
---|
| 2853 | <p>The debug command, run on the node where the map failed, is:</p> |
---|
| 2854 | <p><pre><blockquote> |
---|
| 2855 | $script $stdout $stderr $syslog $jobconf. |
---|
| 2856 | </blockquote></pre></p> |
---|
| 2857 | |
---|
| 2858 | <p> The script file is distributed through <A HREF="../../../../org/apache/hadoop/filecache/DistributedCache.html" title="class in org.apache.hadoop.filecache"><CODE>DistributedCache</CODE></A> |
---|
| 2859 | APIs. The script needs to be symlinked. </p> |
---|
| 2860 | |
---|
| 2861 | <p>Here is an example on how to submit a script |
---|
| 2862 | <p><blockquote><pre> |
---|
| 2863 | job.setMapDebugScript("./myscript"); |
---|
| 2864 | DistributedCache.createSymlink(job); |
---|
| 2865 | DistributedCache.addCacheFile("/debug/scripts/myscript#myscript"); |
---|
| 2866 | </pre></blockquote></p> |
---|
| 2867 | <P> |
---|
| 2868 | <DD><DL> |
---|
| 2869 | <DT><B>Parameters:</B><DD><CODE>mDbgScript</CODE> - the script name</DL> |
---|
| 2870 | </DD> |
---|
| 2871 | </DL> |
---|
| 2872 | <HR> |
---|
| 2873 | |
---|
| 2874 | <A NAME="getMapDebugScript()"><!-- --></A><H3> |
---|
| 2875 | getMapDebugScript</H3> |
---|
| 2876 | <PRE> |
---|
| 2877 | public <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>getMapDebugScript</B>()</PRE> |
---|
| 2878 | <DL> |
---|
| 2879 | <DD><B>Deprecated.</B> <DD>Get the map task's debug script. |
---|
| 2880 | <P> |
---|
| 2881 | <DD><DL> |
---|
| 2882 | |
---|
| 2883 | <DT><B>Returns:</B><DD>the debug Script for the mapred job for failed map tasks.<DT><B>See Also:</B><DD><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setMapDebugScript(java.lang.String)"><CODE>setMapDebugScript(String)</CODE></A></DL> |
---|
| 2884 | </DD> |
---|
| 2885 | </DL> |
---|
| 2886 | <HR> |
---|
| 2887 | |
---|
| 2888 | <A NAME="setReduceDebugScript(java.lang.String)"><!-- --></A><H3> |
---|
| 2889 | setReduceDebugScript</H3> |
---|
| 2890 | <PRE> |
---|
| 2891 | public void <B>setReduceDebugScript</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> rDbgScript)</PRE> |
---|
| 2892 | <DL> |
---|
| 2893 | <DD><B>Deprecated.</B> <DD>Set the debug script to run when the reduce tasks fail. |
---|
| 2894 | |
---|
| 2895 | <p>The debug script can aid debugging of failed reduce tasks. The script |
---|
| 2896 | is given task's stdout, stderr, syslog, jobconf files as arguments.</p> |
---|
| 2897 | |
---|
| 2898 | <p>The debug command, run on the node where the map failed, is:</p> |
---|
| 2899 | <p><pre><blockquote> |
---|
| 2900 | $script $stdout $stderr $syslog $jobconf. |
---|
| 2901 | </blockquote></pre></p> |
---|
| 2902 | |
---|
| 2903 | <p> The script file is distributed through <A HREF="../../../../org/apache/hadoop/filecache/DistributedCache.html" title="class in org.apache.hadoop.filecache"><CODE>DistributedCache</CODE></A> |
---|
| 2904 | APIs. The script file needs to be symlinked </p> |
---|
| 2905 | |
---|
| 2906 | <p>Here is an example on how to submit a script |
---|
| 2907 | <p><blockquote><pre> |
---|
| 2908 | job.setReduceDebugScript("./myscript"); |
---|
| 2909 | DistributedCache.createSymlink(job); |
---|
| 2910 | DistributedCache.addCacheFile("/debug/scripts/myscript#myscript"); |
---|
| 2911 | </pre></blockquote></p> |
---|
| 2912 | <P> |
---|
| 2913 | <DD><DL> |
---|
| 2914 | <DT><B>Parameters:</B><DD><CODE>rDbgScript</CODE> - the script name</DL> |
---|
| 2915 | </DD> |
---|
| 2916 | </DL> |
---|
| 2917 | <HR> |
---|
| 2918 | |
---|
| 2919 | <A NAME="getReduceDebugScript()"><!-- --></A><H3> |
---|
| 2920 | getReduceDebugScript</H3> |
---|
| 2921 | <PRE> |
---|
| 2922 | public <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>getReduceDebugScript</B>()</PRE> |
---|
| 2923 | <DL> |
---|
| 2924 | <DD><B>Deprecated.</B> <DD>Get the reduce task's debug Script |
---|
| 2925 | <P> |
---|
| 2926 | <DD><DL> |
---|
| 2927 | |
---|
| 2928 | <DT><B>Returns:</B><DD>the debug script for the mapred job for failed reduce tasks.<DT><B>See Also:</B><DD><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setReduceDebugScript(java.lang.String)"><CODE>setReduceDebugScript(String)</CODE></A></DL> |
---|
| 2929 | </DD> |
---|
| 2930 | </DL> |
---|
| 2931 | <HR> |
---|
| 2932 | |
---|
| 2933 | <A NAME="getJobEndNotificationURI()"><!-- --></A><H3> |
---|
| 2934 | getJobEndNotificationURI</H3> |
---|
| 2935 | <PRE> |
---|
| 2936 | public <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>getJobEndNotificationURI</B>()</PRE> |
---|
| 2937 | <DL> |
---|
| 2938 | <DD><B>Deprecated.</B> <DD>Get the uri to be invoked in-order to send a notification after the job |
---|
| 2939 | has completed (success/failure). |
---|
| 2940 | <P> |
---|
| 2941 | <DD><DL> |
---|
| 2942 | |
---|
| 2943 | <DT><B>Returns:</B><DD>the job end notification uri, <code>null</code> if it hasn't |
---|
| 2944 | been set.<DT><B>See Also:</B><DD><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setJobEndNotificationURI(java.lang.String)"><CODE>setJobEndNotificationURI(String)</CODE></A></DL> |
---|
| 2945 | </DD> |
---|
| 2946 | </DL> |
---|
| 2947 | <HR> |
---|
| 2948 | |
---|
| 2949 | <A NAME="setJobEndNotificationURI(java.lang.String)"><!-- --></A><H3> |
---|
| 2950 | setJobEndNotificationURI</H3> |
---|
| 2951 | <PRE> |
---|
| 2952 | public void <B>setJobEndNotificationURI</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> uri)</PRE> |
---|
| 2953 | <DL> |
---|
| 2954 | <DD><B>Deprecated.</B> <DD>Set the uri to be invoked in-order to send a notification after the job |
---|
| 2955 | has completed (success/failure). |
---|
| 2956 | |
---|
| 2957 | <p>The uri can contain 2 special parameters: <tt>$jobId</tt> and |
---|
| 2958 | <tt>$jobStatus</tt>. Those, if present, are replaced by the job's |
---|
| 2959 | identifier and completion-status respectively.</p> |
---|
| 2960 | |
---|
| 2961 | <p>This is typically used by application-writers to implement chaining of |
---|
| 2962 | Map-Reduce jobs in an <i>asynchronous manner</i>.</p> |
---|
| 2963 | <P> |
---|
| 2964 | <DD><DL> |
---|
| 2965 | <DT><B>Parameters:</B><DD><CODE>uri</CODE> - the job end notification uri<DT><B>See Also:</B><DD><A HREF="../../../../org/apache/hadoop/mapred/JobStatus.html" title="class in org.apache.hadoop.mapred"><CODE>JobStatus</CODE></A>, |
---|
| 2966 | <a href="../../../../org/apache/hadoop/mapred/JobClient.html# |
---|
| 2967 | JobCompletionAndChaining">Job Completion and Chaining</a></DL> |
---|
| 2968 | </DD> |
---|
| 2969 | </DL> |
---|
| 2970 | <HR> |
---|
| 2971 | |
---|
| 2972 | <A NAME="getJobLocalDir()"><!-- --></A><H3> |
---|
| 2973 | getJobLocalDir</H3> |
---|
| 2974 | <PRE> |
---|
| 2975 | public <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>getJobLocalDir</B>()</PRE> |
---|
| 2976 | <DL> |
---|
| 2977 | <DD><B>Deprecated.</B> <DD>Get job-specific shared directory for use as scratch space |
---|
| 2978 | |
---|
| 2979 | <p> |
---|
| 2980 | When a job starts, a shared directory is created at location |
---|
| 2981 | <code> |
---|
| 2982 | ${mapred.local.dir}/taskTracker/jobcache/$jobid/work/ </code>. |
---|
| 2983 | This directory is exposed to the users through |
---|
| 2984 | <code>job.local.dir </code>. |
---|
| 2985 | So, the tasks can use this space |
---|
| 2986 | as scratch space and share files among them. </p> |
---|
| 2987 | This value is available as System property also. |
---|
| 2988 | <P> |
---|
| 2989 | <DD><DL> |
---|
| 2990 | |
---|
| 2991 | <DT><B>Returns:</B><DD>The localized job specific shared directory</DL> |
---|
| 2992 | </DD> |
---|
| 2993 | </DL> |
---|
| 2994 | <HR> |
---|
| 2995 | |
---|
| 2996 | <A NAME="getMemoryForMapTask()"><!-- --></A><H3> |
---|
| 2997 | getMemoryForMapTask</H3> |
---|
| 2998 | <PRE> |
---|
| 2999 | public long <B>getMemoryForMapTask</B>()</PRE> |
---|
| 3000 | <DL> |
---|
| 3001 | <DD><B>Deprecated.</B> <DD><DL> |
---|
| 3002 | </DL> |
---|
| 3003 | </DD> |
---|
| 3004 | </DL> |
---|
| 3005 | <HR> |
---|
| 3006 | |
---|
| 3007 | <A NAME="setMemoryForMapTask(long)"><!-- --></A><H3> |
---|
| 3008 | setMemoryForMapTask</H3> |
---|
| 3009 | <PRE> |
---|
| 3010 | public void <B>setMemoryForMapTask</B>(long mem)</PRE> |
---|
| 3011 | <DL> |
---|
| 3012 | <DD><B>Deprecated.</B> <DD><DL> |
---|
| 3013 | </DL> |
---|
| 3014 | </DD> |
---|
| 3015 | </DL> |
---|
| 3016 | <HR> |
---|
| 3017 | |
---|
| 3018 | <A NAME="getMemoryForReduceTask()"><!-- --></A><H3> |
---|
| 3019 | getMemoryForReduceTask</H3> |
---|
| 3020 | <PRE> |
---|
| 3021 | public long <B>getMemoryForReduceTask</B>()</PRE> |
---|
| 3022 | <DL> |
---|
| 3023 | <DD><B>Deprecated.</B> <DD><DL> |
---|
| 3024 | </DL> |
---|
| 3025 | </DD> |
---|
| 3026 | </DL> |
---|
| 3027 | <HR> |
---|
| 3028 | |
---|
| 3029 | <A NAME="setMemoryForReduceTask(long)"><!-- --></A><H3> |
---|
| 3030 | setMemoryForReduceTask</H3> |
---|
| 3031 | <PRE> |
---|
| 3032 | public void <B>setMemoryForReduceTask</B>(long mem)</PRE> |
---|
| 3033 | <DL> |
---|
| 3034 | <DD><B>Deprecated.</B> <DD><DL> |
---|
| 3035 | </DL> |
---|
| 3036 | </DD> |
---|
| 3037 | </DL> |
---|
| 3038 | <HR> |
---|
| 3039 | |
---|
| 3040 | <A NAME="getQueueName()"><!-- --></A><H3> |
---|
| 3041 | getQueueName</H3> |
---|
| 3042 | <PRE> |
---|
| 3043 | public <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>getQueueName</B>()</PRE> |
---|
| 3044 | <DL> |
---|
| 3045 | <DD><B>Deprecated.</B> <DD>Return the name of the queue to which this job is submitted. |
---|
| 3046 | Defaults to 'default'. |
---|
| 3047 | <P> |
---|
| 3048 | <DD><DL> |
---|
| 3049 | |
---|
| 3050 | <DT><B>Returns:</B><DD>name of the queue</DL> |
---|
| 3051 | </DD> |
---|
| 3052 | </DL> |
---|
| 3053 | <HR> |
---|
| 3054 | |
---|
| 3055 | <A NAME="setQueueName(java.lang.String)"><!-- --></A><H3> |
---|
| 3056 | setQueueName</H3> |
---|
| 3057 | <PRE> |
---|
| 3058 | public void <B>setQueueName</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> queueName)</PRE> |
---|
| 3059 | <DL> |
---|
| 3060 | <DD><B>Deprecated.</B> <DD>Set the name of the queue to which this job should be submitted. |
---|
| 3061 | <P> |
---|
| 3062 | <DD><DL> |
---|
| 3063 | <DT><B>Parameters:</B><DD><CODE>queueName</CODE> - Name of the queue</DL> |
---|
| 3064 | </DD> |
---|
| 3065 | </DL> |
---|
| 3066 | <HR> |
---|
| 3067 | |
---|
| 3068 | <A NAME="normalizeMemoryConfigValue(long)"><!-- --></A><H3> |
---|
| 3069 | normalizeMemoryConfigValue</H3> |
---|
| 3070 | <PRE> |
---|
| 3071 | public static long <B>normalizeMemoryConfigValue</B>(long val)</PRE> |
---|
| 3072 | <DL> |
---|
| 3073 | <DD><B>Deprecated.</B> <DD>Normalize the negative values in configuration |
---|
| 3074 | <P> |
---|
| 3075 | <DD><DL> |
---|
| 3076 | <DT><B>Parameters:</B><DD><CODE>val</CODE> - |
---|
| 3077 | <DT><B>Returns:</B><DD>normalized value</DL> |
---|
| 3078 | </DD> |
---|
| 3079 | </DL> |
---|
| 3080 | <HR> |
---|
| 3081 | |
---|
| 3082 | <A NAME="getMaxVirtualMemoryForTask()"><!-- --></A><H3> |
---|
| 3083 | getMaxVirtualMemoryForTask</H3> |
---|
| 3084 | <PRE> |
---|
| 3085 | <FONT SIZE="-1"><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Deprecated.html?is-external=true" title="class or interface in java.lang">@Deprecated</A> |
---|
| 3086 | </FONT>public long <B>getMaxVirtualMemoryForTask</B>()</PRE> |
---|
| 3087 | <DL> |
---|
| 3088 | <DD><B>Deprecated.</B> <I>Use <A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getMemoryForMapTask()"><CODE>getMemoryForMapTask()</CODE></A> and |
---|
| 3089 | <A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getMemoryForReduceTask()"><CODE>getMemoryForReduceTask()</CODE></A></I> |
---|
| 3090 | <P> |
---|
| 3091 | <DD>The maximum amount of memory any task of this job will use. See |
---|
| 3092 | <A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#MAPRED_TASK_MAXVMEM_PROPERTY"><CODE>MAPRED_TASK_MAXVMEM_PROPERTY</CODE></A> |
---|
| 3093 | <p/> |
---|
| 3094 | mapred.task.maxvmem is split into |
---|
| 3095 | mapred.job.map.memory.mb |
---|
| 3096 | and mapred.job.map.memory.mb,mapred |
---|
| 3097 | each of the new key are set |
---|
| 3098 | as mapred.task.maxvmem / 1024 |
---|
| 3099 | as new values are in MB |
---|
| 3100 | <P> |
---|
| 3101 | <DD><DL> |
---|
| 3102 | |
---|
| 3103 | <DT><B>Returns:</B><DD>The maximum amount of memory any task of this job will use, in |
---|
| 3104 | bytes.<DT><B>See Also:</B><DD><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setMaxVirtualMemoryForTask(long)"><CODE>setMaxVirtualMemoryForTask(long)</CODE></A></DL> |
---|
| 3105 | </DD> |
---|
| 3106 | </DL> |
---|
| 3107 | <HR> |
---|
| 3108 | |
---|
| 3109 | <A NAME="setMaxVirtualMemoryForTask(long)"><!-- --></A><H3> |
---|
| 3110 | setMaxVirtualMemoryForTask</H3> |
---|
| 3111 | <PRE> |
---|
| 3112 | <FONT SIZE="-1"><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Deprecated.html?is-external=true" title="class or interface in java.lang">@Deprecated</A> |
---|
| 3113 | </FONT>public void <B>setMaxVirtualMemoryForTask</B>(long vmem)</PRE> |
---|
| 3114 | <DL> |
---|
| 3115 | <DD><B>Deprecated.</B> <I>Use <A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setMemoryForMapTask(long)"><CODE>setMemoryForMapTask(long mem)</CODE></A> and |
---|
| 3116 | Use <A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#setMemoryForReduceTask(long)"><CODE>setMemoryForReduceTask(long mem)</CODE></A></I> |
---|
| 3117 | <P> |
---|
| 3118 | <DD>Set the maximum amount of memory any task of this job can use. See |
---|
| 3119 | <A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#MAPRED_TASK_MAXVMEM_PROPERTY"><CODE>MAPRED_TASK_MAXVMEM_PROPERTY</CODE></A> |
---|
| 3120 | <p/> |
---|
| 3121 | mapred.task.maxvmem is split into |
---|
| 3122 | mapred.job.map.memory.mb |
---|
| 3123 | and mapred.job.map.memory.mb,mapred |
---|
| 3124 | each of the new key are set |
---|
| 3125 | as mapred.task.maxvmem / 1024 |
---|
| 3126 | as new values are in MB |
---|
| 3127 | <P> |
---|
| 3128 | <DD><DL> |
---|
| 3129 | <DT><B>Parameters:</B><DD><CODE>vmem</CODE> - Maximum amount of virtual memory in bytes any task of this job |
---|
| 3130 | can use.<DT><B>See Also:</B><DD><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html#getMaxVirtualMemoryForTask()"><CODE>getMaxVirtualMemoryForTask()</CODE></A></DL> |
---|
| 3131 | </DD> |
---|
| 3132 | </DL> |
---|
| 3133 | <HR> |
---|
| 3134 | |
---|
| 3135 | <A NAME="getMaxPhysicalMemoryForTask()"><!-- --></A><H3> |
---|
| 3136 | getMaxPhysicalMemoryForTask</H3> |
---|
| 3137 | <PRE> |
---|
| 3138 | <FONT SIZE="-1"><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Deprecated.html?is-external=true" title="class or interface in java.lang">@Deprecated</A> |
---|
| 3139 | </FONT>public long <B>getMaxPhysicalMemoryForTask</B>()</PRE> |
---|
| 3140 | <DL> |
---|
| 3141 | <DD><B>Deprecated.</B> <I>this variable is deprecated and nolonger in use.</I> |
---|
| 3142 | <P> |
---|
| 3143 | <DD><DL> |
---|
| 3144 | </DL> |
---|
| 3145 | </DD> |
---|
| 3146 | </DL> |
---|
| 3147 | <HR> |
---|
| 3148 | |
---|
| 3149 | <A NAME="setMaxPhysicalMemoryForTask(long)"><!-- --></A><H3> |
---|
| 3150 | setMaxPhysicalMemoryForTask</H3> |
---|
| 3151 | <PRE> |
---|
| 3152 | <FONT SIZE="-1"><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Deprecated.html?is-external=true" title="class or interface in java.lang">@Deprecated</A> |
---|
| 3153 | </FONT>public void <B>setMaxPhysicalMemoryForTask</B>(long mem)</PRE> |
---|
| 3154 | <DL> |
---|
| 3155 | <DD><B>Deprecated.</B> |
---|
| 3156 | <P> |
---|
| 3157 | <DD><DL> |
---|
| 3158 | </DL> |
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| 3159 | </DD> |
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| 3160 | </DL> |
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