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| 82 | <H2> |
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| 83 | Package org.apache.hadoop.streaming |
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| 84 | </H2> |
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| 85 | <tt>Hadoop Streaming</tt> is a utility which allows users to create and run |
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| 86 | Map-Reduce jobs with any executables (e.g. |
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| 87 | <P> |
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| 88 | <B>See:</B> |
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| 89 | <BR> |
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| 90 | <A HREF="#package_description"><B>Description</B></A> |
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| 91 | <P> |
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| 92 | |
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| 93 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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| 94 | <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
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| 95 | <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> |
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| 96 | <B>Class Summary</B></FONT></TH> |
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| 97 | </TR> |
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| 98 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 99 | <TD WIDTH="15%"><B><A HREF="../../../../org/apache/hadoop/streaming/Environment.html" title="class in org.apache.hadoop.streaming">Environment</A></B></TD> |
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| 100 | <TD>This is a class used to get the current environment |
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| 101 | on the host machines running the map/reduce.</TD> |
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| 102 | </TR> |
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| 103 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 104 | <TD WIDTH="15%"><B><A HREF="../../../../org/apache/hadoop/streaming/HadoopStreaming.html" title="class in org.apache.hadoop.streaming">HadoopStreaming</A></B></TD> |
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| 105 | <TD>The main entrypoint.</TD> |
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| 106 | </TR> |
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| 107 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 108 | <TD WIDTH="15%"><B><A HREF="../../../../org/apache/hadoop/streaming/JarBuilder.html" title="class in org.apache.hadoop.streaming">JarBuilder</A></B></TD> |
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| 109 | <TD>This class is the main class for generating job.jar |
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| 110 | for Hadoop Streaming jobs.</TD> |
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| 111 | </TR> |
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| 112 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 113 | <TD WIDTH="15%"><B><A HREF="../../../../org/apache/hadoop/streaming/PathFinder.html" title="class in org.apache.hadoop.streaming">PathFinder</A></B></TD> |
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| 114 | <TD>Maps a relative pathname to an absolute pathname using the |
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| 115 | PATH enviroment.</TD> |
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| 116 | </TR> |
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| 117 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 118 | <TD WIDTH="15%"><B><A HREF="../../../../org/apache/hadoop/streaming/PipeMapper.html" title="class in org.apache.hadoop.streaming">PipeMapper</A></B></TD> |
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| 119 | <TD>A generic Mapper bridge.</TD> |
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| 120 | </TR> |
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| 121 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 122 | <TD WIDTH="15%"><B><A HREF="../../../../org/apache/hadoop/streaming/PipeMapRed.html" title="class in org.apache.hadoop.streaming">PipeMapRed</A></B></TD> |
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| 123 | <TD>Shared functionality for PipeMapper, PipeReducer.</TD> |
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| 124 | </TR> |
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| 125 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 126 | <TD WIDTH="15%"><B><A HREF="../../../../org/apache/hadoop/streaming/PipeMapRunner.html" title="class in org.apache.hadoop.streaming">PipeMapRunner<K1,V1,K2,V2></A></B></TD> |
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| 127 | <TD> </TD> |
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| 128 | </TR> |
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| 129 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 130 | <TD WIDTH="15%"><B><A HREF="../../../../org/apache/hadoop/streaming/PipeReducer.html" title="class in org.apache.hadoop.streaming">PipeReducer</A></B></TD> |
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| 131 | <TD>A generic Reducer bridge.</TD> |
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| 132 | </TR> |
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| 133 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 134 | <TD WIDTH="15%"><B><A HREF="../../../../org/apache/hadoop/streaming/StreamBaseRecordReader.html" title="class in org.apache.hadoop.streaming">StreamBaseRecordReader</A></B></TD> |
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| 135 | <TD>Shared functionality for hadoopStreaming formats.</TD> |
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| 136 | </TR> |
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| 137 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 138 | <TD WIDTH="15%"><B><A HREF="../../../../org/apache/hadoop/streaming/StreamInputFormat.html" title="class in org.apache.hadoop.streaming">StreamInputFormat</A></B></TD> |
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| 139 | <TD>An input format that selects a RecordReader based on a JobConf property.</TD> |
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| 140 | </TR> |
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| 141 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 142 | <TD WIDTH="15%"><B><A HREF="../../../../org/apache/hadoop/streaming/StreamJob.html" title="class in org.apache.hadoop.streaming">StreamJob</A></B></TD> |
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| 143 | <TD>All the client-side work happens here.</TD> |
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| 144 | </TR> |
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| 145 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 146 | <TD WIDTH="15%"><B><A HREF="../../../../org/apache/hadoop/streaming/StreamKeyValUtil.html" title="class in org.apache.hadoop.streaming">StreamKeyValUtil</A></B></TD> |
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| 147 | <TD> </TD> |
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| 148 | </TR> |
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| 149 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 150 | <TD WIDTH="15%"><B><A HREF="../../../../org/apache/hadoop/streaming/StreamUtil.html" title="class in org.apache.hadoop.streaming">StreamUtil</A></B></TD> |
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| 151 | <TD>Utilities not available elsewhere in Hadoop.</TD> |
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| 152 | </TR> |
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| 153 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 154 | <TD WIDTH="15%"><B><A HREF="../../../../org/apache/hadoop/streaming/StreamXmlRecordReader.html" title="class in org.apache.hadoop.streaming">StreamXmlRecordReader</A></B></TD> |
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| 155 | <TD>A way to interpret XML fragments as Mapper input records.</TD> |
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| 156 | </TR> |
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| 157 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 158 | <TD WIDTH="15%"><B><A HREF="../../../../org/apache/hadoop/streaming/UTF8ByteArrayUtils.html" title="class in org.apache.hadoop.streaming">UTF8ByteArrayUtils</A></B></TD> |
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| 159 | <TD><B>Deprecated.</B> <I>use <A HREF="../../../../org/apache/hadoop/util/UTF8ByteArrayUtils.html" title="class in org.apache.hadoop.util"><CODE>UTF8ByteArrayUtils</CODE></A> and |
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| 160 | <A HREF="../../../../org/apache/hadoop/streaming/StreamKeyValUtil.html" title="class in org.apache.hadoop.streaming"><CODE>StreamKeyValUtil</CODE></A> instead</I></TD> |
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| 161 | </TR> |
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| 162 | </TABLE> |
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| 163 | |
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| 164 | |
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| 165 | <P> |
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| 166 | <A NAME="package_description"><!-- --></A><H2> |
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| 167 | Package org.apache.hadoop.streaming Description |
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| 168 | </H2> |
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| 169 | |
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| 170 | <P> |
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| 171 | <tt>Hadoop Streaming</tt> is a utility which allows users to create and run |
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| 172 | Map-Reduce jobs with any executables (e.g. Unix shell utilities) as the mapper |
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| 173 | and/or the reducer. |
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| 174 | <P> |
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| 175 | |
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