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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 OutputCommitter</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/mapreduce/OutputCommitter.html" title="class in org.apache.hadoop.mapreduce">org.apache.hadoop.mapreduce.OutputCommitter</A> |
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| 97 | <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><B>org.apache.hadoop.mapred.OutputCommitter</B> |
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| 98 | </PRE> |
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| 99 | <DL> |
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| 100 | <DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../../../org/apache/hadoop/mapred/FileOutputCommitter.html" title="class in org.apache.hadoop.mapred">FileOutputCommitter</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/mapreduce/OutputCommitter.html" title="class in org.apache.hadoop.mapreduce"><CODE>OutputCommitter</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 abstract class <B>OutputCommitter</B><DT>extends <A HREF="../../../../org/apache/hadoop/mapreduce/OutputCommitter.html" title="class in org.apache.hadoop.mapreduce">OutputCommitter</A></DL> |
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| 108 | </PRE> |
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| 109 | |
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| 110 | <P> |
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| 111 | <code>OutputCommitter</code> describes the commit of task output for a |
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| 112 | Map-Reduce job. |
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| 113 | |
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| 114 | <p>The Map-Reduce framework relies on the <code>OutputCommitter</code> of |
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| 115 | the job to:<p> |
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| 116 | <ol> |
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| 117 | <li> |
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| 118 | Setup the job during initialization. For example, create the temporary |
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| 119 | output directory for the job during the initialization of the job. |
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| 120 | </li> |
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| 121 | <li> |
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| 122 | Cleanup the job after the job completion. For example, remove the |
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| 123 | temporary output directory after the job completion. |
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| 124 | </li> |
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| 125 | <li> |
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| 126 | Setup the task temporary output. |
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| 127 | </li> |
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| 128 | <li> |
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| 129 | Check whether a task needs a commit. This is to avoid the commit |
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| 130 | procedure if a task does not need commit. |
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| 131 | </li> |
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| 132 | <li> |
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| 133 | Commit of the task output. |
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| 134 | </li> |
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| 135 | <li> |
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| 136 | Discard the task commit. |
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| 137 | </li> |
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| 138 | </ol> |
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| 139 | <P> |
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| 140 | |
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| 141 | <P> |
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| 142 | <DL> |
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| 143 | <DT><B>See Also:</B><DD><A HREF="../../../../org/apache/hadoop/mapred/FileOutputCommitter.html" title="class in org.apache.hadoop.mapred"><CODE>FileOutputCommitter</CODE></A>, |
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| 144 | <A HREF="../../../../org/apache/hadoop/mapred/JobContext.html" title="class in org.apache.hadoop.mapred"><CODE>JobContext</CODE></A>, |
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| 145 | <A HREF="../../../../org/apache/hadoop/mapred/TaskAttemptContext.html" title="class in org.apache.hadoop.mapred"><CODE>TaskAttemptContext</CODE></A></DL> |
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| 146 | <HR> |
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| 147 | |
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| 148 | <P> |
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| 149 | |
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| 150 | <!-- ======== CONSTRUCTOR SUMMARY ======== --> |
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| 151 | |
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| 152 | <A NAME="constructor_summary"><!-- --></A> |
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| 153 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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| 154 | <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
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| 155 | <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> |
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| 156 | <B>Constructor Summary</B></FONT></TH> |
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| 157 | </TR> |
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| 158 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 159 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html#OutputCommitter()">OutputCommitter</A></B>()</CODE> |
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| 160 | |
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| 161 | <BR> |
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| 162 | <B>Deprecated.</B> </TD> |
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| 163 | </TR> |
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| 164 | </TABLE> |
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| 165 | |
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| 166 | <!-- ========== METHOD SUMMARY =========== --> |
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| 167 | |
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| 168 | <A NAME="method_summary"><!-- --></A> |
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| 169 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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| 170 | <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
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| 171 | <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> |
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| 172 | <B>Method Summary</B></FONT></TH> |
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| 173 | </TR> |
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| 174 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 175 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 176 | <CODE>abstract void</CODE></FONT></TD> |
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| 177 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html#abortTask(org.apache.hadoop.mapred.TaskAttemptContext)">abortTask</A></B>(<A HREF="../../../../org/apache/hadoop/mapred/TaskAttemptContext.html" title="class in org.apache.hadoop.mapred">TaskAttemptContext</A> taskContext)</CODE> |
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| 178 | |
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| 179 | <BR> |
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| 180 | <B>Deprecated.</B> Discard the task output</TD> |
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| 181 | </TR> |
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| 182 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 183 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 184 | <CODE> void</CODE></FONT></TD> |
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| 185 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html#abortTask(org.apache.hadoop.mapreduce.TaskAttemptContext)">abortTask</A></B>(<A HREF="../../../../org/apache/hadoop/mapreduce/TaskAttemptContext.html" title="class in org.apache.hadoop.mapreduce">TaskAttemptContext</A> taskContext)</CODE> |
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| 186 | |
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| 187 | <BR> |
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| 188 | <B>Deprecated.</B> This method implements the new interface by calling the old method.</TD> |
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| 189 | </TR> |
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| 190 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 191 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 192 | <CODE>abstract void</CODE></FONT></TD> |
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| 193 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html#cleanupJob(org.apache.hadoop.mapred.JobContext)">cleanupJob</A></B>(<A HREF="../../../../org/apache/hadoop/mapred/JobContext.html" title="class in org.apache.hadoop.mapred">JobContext</A> jobContext)</CODE> |
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| 194 | |
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| 195 | <BR> |
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| 196 | <B>Deprecated.</B> For cleaning up the job's output after job completion</TD> |
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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> void</CODE></FONT></TD> |
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| 201 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html#cleanupJob(org.apache.hadoop.mapreduce.JobContext)">cleanupJob</A></B>(<A HREF="../../../../org/apache/hadoop/mapreduce/JobContext.html" title="class in org.apache.hadoop.mapreduce">JobContext</A> context)</CODE> |
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| 202 | |
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| 203 | <BR> |
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| 204 | <B>Deprecated.</B> This method implements the new interface by calling the old method.</TD> |
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| 205 | </TR> |
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| 206 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 207 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 208 | <CODE>abstract void</CODE></FONT></TD> |
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| 209 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html#commitTask(org.apache.hadoop.mapred.TaskAttemptContext)">commitTask</A></B>(<A HREF="../../../../org/apache/hadoop/mapred/TaskAttemptContext.html" title="class in org.apache.hadoop.mapred">TaskAttemptContext</A> taskContext)</CODE> |
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| 210 | |
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| 211 | <BR> |
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| 212 | <B>Deprecated.</B> To promote the task's temporary output to final output location |
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| 213 | |
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| 214 | The task's output is moved to the job's output directory.</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> void</CODE></FONT></TD> |
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| 219 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html#commitTask(org.apache.hadoop.mapreduce.TaskAttemptContext)">commitTask</A></B>(<A HREF="../../../../org/apache/hadoop/mapreduce/TaskAttemptContext.html" title="class in org.apache.hadoop.mapreduce">TaskAttemptContext</A> taskContext)</CODE> |
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| 220 | |
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| 221 | <BR> |
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| 222 | <B>Deprecated.</B> This method implements the new interface by calling the old method.</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>abstract boolean</CODE></FONT></TD> |
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| 227 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html#needsTaskCommit(org.apache.hadoop.mapred.TaskAttemptContext)">needsTaskCommit</A></B>(<A HREF="../../../../org/apache/hadoop/mapred/TaskAttemptContext.html" title="class in org.apache.hadoop.mapred">TaskAttemptContext</A> taskContext)</CODE> |
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| 228 | |
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| 229 | <BR> |
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| 230 | <B>Deprecated.</B> Check whether task needs a commit</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> boolean</CODE></FONT></TD> |
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| 235 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html#needsTaskCommit(org.apache.hadoop.mapreduce.TaskAttemptContext)">needsTaskCommit</A></B>(<A HREF="../../../../org/apache/hadoop/mapreduce/TaskAttemptContext.html" title="class in org.apache.hadoop.mapreduce">TaskAttemptContext</A> taskContext)</CODE> |
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| 236 | |
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| 237 | <BR> |
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| 238 | <B>Deprecated.</B> This method implements the new interface by calling the old method.</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>abstract void</CODE></FONT></TD> |
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| 243 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html#setupJob(org.apache.hadoop.mapred.JobContext)">setupJob</A></B>(<A HREF="../../../../org/apache/hadoop/mapred/JobContext.html" title="class in org.apache.hadoop.mapred">JobContext</A> jobContext)</CODE> |
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| 244 | |
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| 245 | <BR> |
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| 246 | <B>Deprecated.</B> For the framework to setup the job output during initialization</TD> |
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| 247 | </TR> |
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| 248 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 249 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 250 | <CODE> void</CODE></FONT></TD> |
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| 251 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html#setupJob(org.apache.hadoop.mapreduce.JobContext)">setupJob</A></B>(<A HREF="../../../../org/apache/hadoop/mapreduce/JobContext.html" title="class in org.apache.hadoop.mapreduce">JobContext</A> jobContext)</CODE> |
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| 252 | |
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| 253 | <BR> |
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| 254 | <B>Deprecated.</B> This method implements the new interface by calling the old method.</TD> |
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| 255 | </TR> |
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| 256 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 257 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 258 | <CODE>abstract void</CODE></FONT></TD> |
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| 259 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html#setupTask(org.apache.hadoop.mapred.TaskAttemptContext)">setupTask</A></B>(<A HREF="../../../../org/apache/hadoop/mapred/TaskAttemptContext.html" title="class in org.apache.hadoop.mapred">TaskAttemptContext</A> taskContext)</CODE> |
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| 260 | |
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| 261 | <BR> |
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| 262 | <B>Deprecated.</B> Sets up output for the task.</TD> |
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| 263 | </TR> |
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| 264 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 265 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 266 | <CODE> void</CODE></FONT></TD> |
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| 267 | <TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html#setupTask(org.apache.hadoop.mapreduce.TaskAttemptContext)">setupTask</A></B>(<A HREF="../../../../org/apache/hadoop/mapreduce/TaskAttemptContext.html" title="class in org.apache.hadoop.mapreduce">TaskAttemptContext</A> taskContext)</CODE> |
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| 268 | |
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| 269 | <BR> |
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| 270 | <B>Deprecated.</B> This method implements the new interface by calling the old method.</TD> |
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| 271 | </TR> |
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| 272 | </TABLE> |
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| 273 | <A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A> |
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| 274 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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| 275 | <TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"> |
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| 276 | <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> |
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| 277 | </TR> |
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| 278 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 279 | <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#toString()" title="class or interface in java.lang">toString</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> |
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| 280 | </TR> |
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| 281 | </TABLE> |
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| 282 | |
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| 283 | <P> |
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| 284 | |
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| 285 | <!-- ========= CONSTRUCTOR DETAIL ======== --> |
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| 286 | |
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| 287 | <A NAME="constructor_detail"><!-- --></A> |
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| 288 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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| 289 | <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
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| 290 | <TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> |
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| 291 | <B>Constructor Detail</B></FONT></TH> |
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| 292 | </TR> |
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| 293 | </TABLE> |
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| 294 | |
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| 295 | <A NAME="OutputCommitter()"><!-- --></A><H3> |
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| 296 | OutputCommitter</H3> |
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| 297 | <PRE> |
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| 298 | public <B>OutputCommitter</B>()</PRE> |
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| 299 | <DL> |
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| 300 | <DD><B>Deprecated.</B> </DL> |
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| 301 | |
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| 302 | <!-- ============ METHOD DETAIL ========== --> |
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| 303 | |
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| 304 | <A NAME="method_detail"><!-- --></A> |
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| 305 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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| 306 | <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
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| 307 | <TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> |
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| 308 | <B>Method Detail</B></FONT></TH> |
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| 309 | </TR> |
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| 310 | </TABLE> |
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| 311 | |
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| 312 | <A NAME="setupJob(org.apache.hadoop.mapred.JobContext)"><!-- --></A><H3> |
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| 313 | setupJob</H3> |
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| 314 | <PRE> |
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| 315 | public abstract void <B>setupJob</B>(<A HREF="../../../../org/apache/hadoop/mapred/JobContext.html" title="class in org.apache.hadoop.mapred">JobContext</A> jobContext) |
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| 316 | 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> |
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| 317 | <DL> |
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| 318 | <DD><B>Deprecated.</B> <DD>For the framework to setup the job output during initialization |
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| 319 | <P> |
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| 320 | <DD><DL> |
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| 321 | <DT><B>Parameters:</B><DD><CODE>jobContext</CODE> - Context of the job whose output is being written. |
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| 322 | <DT><B>Throws:</B> |
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| 323 | <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> - if temporary output could not be created</DL> |
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| 324 | </DD> |
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| 325 | </DL> |
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| 326 | <HR> |
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| 327 | |
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| 328 | <A NAME="cleanupJob(org.apache.hadoop.mapred.JobContext)"><!-- --></A><H3> |
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| 329 | cleanupJob</H3> |
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| 330 | <PRE> |
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| 331 | public abstract void <B>cleanupJob</B>(<A HREF="../../../../org/apache/hadoop/mapred/JobContext.html" title="class in org.apache.hadoop.mapred">JobContext</A> jobContext) |
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| 332 | 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> |
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| 333 | <DL> |
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| 334 | <DD><B>Deprecated.</B> <DD>For cleaning up the job's output after job completion |
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| 335 | <P> |
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| 336 | <DD><DL> |
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| 337 | <DT><B>Parameters:</B><DD><CODE>jobContext</CODE> - Context of the job whose output is being written. |
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| 338 | <DT><B>Throws:</B> |
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| 339 | <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> |
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| 340 | </DD> |
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| 341 | </DL> |
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| 342 | <HR> |
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| 343 | |
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| 344 | <A NAME="setupTask(org.apache.hadoop.mapred.TaskAttemptContext)"><!-- --></A><H3> |
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| 345 | setupTask</H3> |
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| 346 | <PRE> |
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| 347 | public abstract void <B>setupTask</B>(<A HREF="../../../../org/apache/hadoop/mapred/TaskAttemptContext.html" title="class in org.apache.hadoop.mapred">TaskAttemptContext</A> taskContext) |
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| 348 | 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> |
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| 349 | <DL> |
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| 350 | <DD><B>Deprecated.</B> <DD>Sets up output for the task. |
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| 351 | <P> |
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| 352 | <DD><DL> |
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| 353 | <DT><B>Parameters:</B><DD><CODE>taskContext</CODE> - Context of the task whose output is being written. |
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| 354 | <DT><B>Throws:</B> |
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| 355 | <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> |
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| 356 | </DD> |
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| 357 | </DL> |
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| 358 | <HR> |
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| 359 | |
---|
| 360 | <A NAME="needsTaskCommit(org.apache.hadoop.mapred.TaskAttemptContext)"><!-- --></A><H3> |
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| 361 | needsTaskCommit</H3> |
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| 362 | <PRE> |
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| 363 | public abstract boolean <B>needsTaskCommit</B>(<A HREF="../../../../org/apache/hadoop/mapred/TaskAttemptContext.html" title="class in org.apache.hadoop.mapred">TaskAttemptContext</A> taskContext) |
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| 364 | 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> |
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| 365 | <DL> |
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| 366 | <DD><B>Deprecated.</B> <DD>Check whether task needs a commit |
---|
| 367 | <P> |
---|
| 368 | <DD><DL> |
---|
| 369 | <DT><B>Parameters:</B><DD><CODE>taskContext</CODE> - |
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| 370 | <DT><B>Returns:</B><DD>true/false |
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| 371 | <DT><B>Throws:</B> |
---|
| 372 | <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> |
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| 373 | </DD> |
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| 374 | </DL> |
---|
| 375 | <HR> |
---|
| 376 | |
---|
| 377 | <A NAME="commitTask(org.apache.hadoop.mapred.TaskAttemptContext)"><!-- --></A><H3> |
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| 378 | commitTask</H3> |
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| 379 | <PRE> |
---|
| 380 | public abstract void <B>commitTask</B>(<A HREF="../../../../org/apache/hadoop/mapred/TaskAttemptContext.html" title="class in org.apache.hadoop.mapred">TaskAttemptContext</A> taskContext) |
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| 381 | 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> |
---|
| 382 | <DL> |
---|
| 383 | <DD><B>Deprecated.</B> <DD>To promote the task's temporary output to final output location |
---|
| 384 | |
---|
| 385 | The task's output is moved to the job's output directory. |
---|
| 386 | <P> |
---|
| 387 | <DD><DL> |
---|
| 388 | <DT><B>Parameters:</B><DD><CODE>taskContext</CODE> - Context of the task whose output is being written. |
---|
| 389 | <DT><B>Throws:</B> |
---|
| 390 | <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> - if commit is not</DL> |
---|
| 391 | </DD> |
---|
| 392 | </DL> |
---|
| 393 | <HR> |
---|
| 394 | |
---|
| 395 | <A NAME="abortTask(org.apache.hadoop.mapred.TaskAttemptContext)"><!-- --></A><H3> |
---|
| 396 | abortTask</H3> |
---|
| 397 | <PRE> |
---|
| 398 | public abstract void <B>abortTask</B>(<A HREF="../../../../org/apache/hadoop/mapred/TaskAttemptContext.html" title="class in org.apache.hadoop.mapred">TaskAttemptContext</A> taskContext) |
---|
| 399 | 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> |
---|
| 400 | <DL> |
---|
| 401 | <DD><B>Deprecated.</B> <DD>Discard the task output |
---|
| 402 | <P> |
---|
| 403 | <DD><DL> |
---|
| 404 | <DT><B>Parameters:</B><DD><CODE>taskContext</CODE> - |
---|
| 405 | <DT><B>Throws:</B> |
---|
| 406 | <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> |
---|
| 407 | </DD> |
---|
| 408 | </DL> |
---|
| 409 | <HR> |
---|
| 410 | |
---|
| 411 | <A NAME="setupJob(org.apache.hadoop.mapreduce.JobContext)"><!-- --></A><H3> |
---|
| 412 | setupJob</H3> |
---|
| 413 | <PRE> |
---|
| 414 | public final void <B>setupJob</B>(<A HREF="../../../../org/apache/hadoop/mapreduce/JobContext.html" title="class in org.apache.hadoop.mapreduce">JobContext</A> jobContext) |
---|
| 415 | 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> |
---|
| 416 | <DL> |
---|
| 417 | <DD><B>Deprecated.</B> <DD>This method implements the new interface by calling the old method. Note |
---|
| 418 | that the input types are different between the new and old apis and this |
---|
| 419 | is a bridge between the two. |
---|
| 420 | <P> |
---|
| 421 | <DD><DL> |
---|
| 422 | <DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/apache/hadoop/mapreduce/OutputCommitter.html#setupJob(org.apache.hadoop.mapreduce.JobContext)">setupJob</A></CODE> in class <CODE><A HREF="../../../../org/apache/hadoop/mapreduce/OutputCommitter.html" title="class in org.apache.hadoop.mapreduce">OutputCommitter</A></CODE></DL> |
---|
| 423 | </DD> |
---|
| 424 | <DD><DL> |
---|
| 425 | <DT><B>Parameters:</B><DD><CODE>jobContext</CODE> - Context of the job whose output is being written. |
---|
| 426 | <DT><B>Throws:</B> |
---|
| 427 | <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> - if temporary output could not be created</DL> |
---|
| 428 | </DD> |
---|
| 429 | </DL> |
---|
| 430 | <HR> |
---|
| 431 | |
---|
| 432 | <A NAME="cleanupJob(org.apache.hadoop.mapreduce.JobContext)"><!-- --></A><H3> |
---|
| 433 | cleanupJob</H3> |
---|
| 434 | <PRE> |
---|
| 435 | public final void <B>cleanupJob</B>(<A HREF="../../../../org/apache/hadoop/mapreduce/JobContext.html" title="class in org.apache.hadoop.mapreduce">JobContext</A> context) |
---|
| 436 | 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> |
---|
| 437 | <DL> |
---|
| 438 | <DD><B>Deprecated.</B> <DD>This method implements the new interface by calling the old method. Note |
---|
| 439 | that the input types are different between the new and old apis and this |
---|
| 440 | is a bridge between the two. |
---|
| 441 | <P> |
---|
| 442 | <DD><DL> |
---|
| 443 | <DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/apache/hadoop/mapreduce/OutputCommitter.html#cleanupJob(org.apache.hadoop.mapreduce.JobContext)">cleanupJob</A></CODE> in class <CODE><A HREF="../../../../org/apache/hadoop/mapreduce/OutputCommitter.html" title="class in org.apache.hadoop.mapreduce">OutputCommitter</A></CODE></DL> |
---|
| 444 | </DD> |
---|
| 445 | <DD><DL> |
---|
| 446 | <DT><B>Parameters:</B><DD><CODE>context</CODE> - Context of the job whose output is being written. |
---|
| 447 | <DT><B>Throws:</B> |
---|
| 448 | <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> |
---|
| 449 | </DD> |
---|
| 450 | </DL> |
---|
| 451 | <HR> |
---|
| 452 | |
---|
| 453 | <A NAME="setupTask(org.apache.hadoop.mapreduce.TaskAttemptContext)"><!-- --></A><H3> |
---|
| 454 | setupTask</H3> |
---|
| 455 | <PRE> |
---|
| 456 | public final void <B>setupTask</B>(<A HREF="../../../../org/apache/hadoop/mapreduce/TaskAttemptContext.html" title="class in org.apache.hadoop.mapreduce">TaskAttemptContext</A> taskContext) |
---|
| 457 | 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> |
---|
| 458 | <DL> |
---|
| 459 | <DD><B>Deprecated.</B> <DD>This method implements the new interface by calling the old method. Note |
---|
| 460 | that the input types are different between the new and old apis and this |
---|
| 461 | is a bridge between the two. |
---|
| 462 | <P> |
---|
| 463 | <DD><DL> |
---|
| 464 | <DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/apache/hadoop/mapreduce/OutputCommitter.html#setupTask(org.apache.hadoop.mapreduce.TaskAttemptContext)">setupTask</A></CODE> in class <CODE><A HREF="../../../../org/apache/hadoop/mapreduce/OutputCommitter.html" title="class in org.apache.hadoop.mapreduce">OutputCommitter</A></CODE></DL> |
---|
| 465 | </DD> |
---|
| 466 | <DD><DL> |
---|
| 467 | <DT><B>Parameters:</B><DD><CODE>taskContext</CODE> - Context of the task whose output is being written. |
---|
| 468 | <DT><B>Throws:</B> |
---|
| 469 | <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> |
---|
| 470 | </DD> |
---|
| 471 | </DL> |
---|
| 472 | <HR> |
---|
| 473 | |
---|
| 474 | <A NAME="needsTaskCommit(org.apache.hadoop.mapreduce.TaskAttemptContext)"><!-- --></A><H3> |
---|
| 475 | needsTaskCommit</H3> |
---|
| 476 | <PRE> |
---|
| 477 | public final boolean <B>needsTaskCommit</B>(<A HREF="../../../../org/apache/hadoop/mapreduce/TaskAttemptContext.html" title="class in org.apache.hadoop.mapreduce">TaskAttemptContext</A> taskContext) |
---|
| 478 | 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> |
---|
| 479 | <DL> |
---|
| 480 | <DD><B>Deprecated.</B> <DD>This method implements the new interface by calling the old method. Note |
---|
| 481 | that the input types are different between the new and old apis and this |
---|
| 482 | is a bridge between the two. |
---|
| 483 | <P> |
---|
| 484 | <DD><DL> |
---|
| 485 | <DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/apache/hadoop/mapreduce/OutputCommitter.html#needsTaskCommit(org.apache.hadoop.mapreduce.TaskAttemptContext)">needsTaskCommit</A></CODE> in class <CODE><A HREF="../../../../org/apache/hadoop/mapreduce/OutputCommitter.html" title="class in org.apache.hadoop.mapreduce">OutputCommitter</A></CODE></DL> |
---|
| 486 | </DD> |
---|
| 487 | <DD><DL> |
---|
| 488 | |
---|
| 489 | <DT><B>Returns:</B><DD>true/false |
---|
| 490 | <DT><B>Throws:</B> |
---|
| 491 | <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> |
---|
| 492 | </DD> |
---|
| 493 | </DL> |
---|
| 494 | <HR> |
---|
| 495 | |
---|
| 496 | <A NAME="commitTask(org.apache.hadoop.mapreduce.TaskAttemptContext)"><!-- --></A><H3> |
---|
| 497 | commitTask</H3> |
---|
| 498 | <PRE> |
---|
| 499 | public final void <B>commitTask</B>(<A HREF="../../../../org/apache/hadoop/mapreduce/TaskAttemptContext.html" title="class in org.apache.hadoop.mapreduce">TaskAttemptContext</A> taskContext) |
---|
| 500 | 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> |
---|
| 501 | <DL> |
---|
| 502 | <DD><B>Deprecated.</B> <DD>This method implements the new interface by calling the old method. Note |
---|
| 503 | that the input types are different between the new and old apis and this |
---|
| 504 | is a bridge between the two. |
---|
| 505 | <P> |
---|
| 506 | <DD><DL> |
---|
| 507 | <DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/apache/hadoop/mapreduce/OutputCommitter.html#commitTask(org.apache.hadoop.mapreduce.TaskAttemptContext)">commitTask</A></CODE> in class <CODE><A HREF="../../../../org/apache/hadoop/mapreduce/OutputCommitter.html" title="class in org.apache.hadoop.mapreduce">OutputCommitter</A></CODE></DL> |
---|
| 508 | </DD> |
---|
| 509 | <DD><DL> |
---|
| 510 | <DT><B>Parameters:</B><DD><CODE>taskContext</CODE> - Context of the task whose output is being written. |
---|
| 511 | <DT><B>Throws:</B> |
---|
| 512 | <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> - if commit is not</DL> |
---|
| 513 | </DD> |
---|
| 514 | </DL> |
---|
| 515 | <HR> |
---|
| 516 | |
---|
| 517 | <A NAME="abortTask(org.apache.hadoop.mapreduce.TaskAttemptContext)"><!-- --></A><H3> |
---|
| 518 | abortTask</H3> |
---|
| 519 | <PRE> |
---|
| 520 | public final void <B>abortTask</B>(<A HREF="../../../../org/apache/hadoop/mapreduce/TaskAttemptContext.html" title="class in org.apache.hadoop.mapreduce">TaskAttemptContext</A> taskContext) |
---|
| 521 | 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> |
---|
| 522 | <DL> |
---|
| 523 | <DD><B>Deprecated.</B> <DD>This method implements the new interface by calling the old method. Note |
---|
| 524 | that the input types are different between the new and old apis and this |
---|
| 525 | is a bridge between the two. |
---|
| 526 | <P> |
---|
| 527 | <DD><DL> |
---|
| 528 | <DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/apache/hadoop/mapreduce/OutputCommitter.html#abortTask(org.apache.hadoop.mapreduce.TaskAttemptContext)">abortTask</A></CODE> in class <CODE><A HREF="../../../../org/apache/hadoop/mapreduce/OutputCommitter.html" title="class in org.apache.hadoop.mapreduce">OutputCommitter</A></CODE></DL> |
---|
| 529 | </DD> |
---|
| 530 | <DD><DL> |
---|
| 531 | |
---|
| 532 | <DT><B>Throws:</B> |
---|
| 533 | <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> |
---|
| 534 | </DD> |
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| 535 | </DL> |
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