Changes between Version 11 and Version 12 of jazz/Hadoop_Lab2


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Timestamp:
Mar 24, 2009, 12:07:53 PM (16 years ago)
Author:
waue
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  • jazz/Hadoop_Lab2

    v11 v12  
    4545{{{
    4646#!html
     47
    4748<p>
    48 </p>
    49 <table summary="" border="1" cellpadding="3"
    50  cellspacing="0" width="100%">
    51   <tbody>
    52     <tr class="TableHeadingColor" bgcolor="#ccccff">
    53       <th colspan="2" align="left"><font
    54  size="+2">
    55       <b>Class Summary</b></font></th>
    56     </tr>
    57     <tr class="TableRowColor" bgcolor="white">
    58       <td width="15%"><b><a
    59  href="http://hadoop.apache.org/core/docs/current/api/org/apache/hadoop/examples/AggregateWordCount.html"
    60  title="class in org.apache.hadoop.examples">AggregateWordCount</a></b></td>
    61       <td>This is an example Aggregated Hadoop Map/Reduce
    62 application. It reads the text input files, breaks each line into words
    63 and counts them. The output is a locally sorted list of words and the
    64 count of how often they occurred. To run: bin/hadoop jar
    65 hadoop-*-examples.jar aggregatewordcount in-dir out-dir numOfReducers
    66 textinputformat </td>
    67     </tr>
    68     <tr class="TableRowColor" bgcolor="white">
    69       <td width="15%"><b><a
    70  href="http://hadoop.apache.org/core/docs/current/api/org/apache/hadoop/examples/AggregateWordHistogram.html"
    71  title="class in org.apache.hadoop.examples">AggregateWordHistogram</a></b></td>
    72       <td>This is an example Aggregated Hadoop Map/Reduce
    73 application. Computes the histogram of the words in the input texts. To
    74 run: bin/hadoop jar hadoop-*-examples.jar aggregatewordhist in-dir
    75 out-dir numOfReducers textinputformat </td>
    76     </tr>
    77     <tr class="TableRowColor" bgcolor="white">
    78       <td width="15%"><b><a
    79  href="http://hadoop.apache.org/core/docs/current/api/org/apache/hadoop/examples/ExampleDriver.html"
    80  title="class in org.apache.hadoop.examples">ExampleDriver</a></b></td>
    81       <td>A description of an example program based on its class
    82 and a human-readable description.</td>
    83     </tr>
    84     <tr class="TableRowColor" bgcolor="white">
    85       <td width="15%"><b><a
    86  href="http://hadoop.apache.org/core/docs/current/api/org/apache/hadoop/examples/Grep.html"
    87  title="class in org.apache.hadoop.examples">Grep</a></b></td>
    88       <td>&nbsp;</td>
    89     </tr>
    90     <tr class="TableRowColor" bgcolor="white">
    91       <td width="15%"><b><a
    92  href="http://hadoop.apache.org/core/docs/current/api/org/apache/hadoop/examples/Join.html"
    93  title="class in org.apache.hadoop.examples">Join</a></b></td>
    94       <td>This is the trivial map/reduce program that does
    95 absolutely nothing other than use the framework to fragment and sort
    96 the input values. To run: bin/hadoop jar build/hadoop-examples.jar join
    97 [-m maps] [-r reduces] [-inFormat input format class] [-outFormat
    98 output format class] [-outKey output key class] [-outValue output value
    99 class] [-joinOp <inner |outer|override="">] [in-dir]*
    100 in-dir out-dir</inner></td>
    101     </tr>
    102     <tr class="TableRowColor" bgcolor="white">
    103       <td width="15%"><b><a
    104  href="http://hadoop.apache.org/core/docs/current/api/org/apache/hadoop/examples/RandomTextWriter.html"
    105  title="class in org.apache.hadoop.examples">RandomTextWriter</a></b></td>
    106       <td>This program uses map/reduce to just run a distributed
    107 job where there is
     49</p><table summary="" border="1" cellpadding="3" cellspacing="0" width="100%">
     50<tbody><tr class="TableHeadingColor" bgcolor="#ccccff">
     51<th colspan="2" align="left"><font size="+2">
     52<b>Class Summary</b></font></th>
     53</tr>
     54<tr class="TableRowColor" bgcolor="white">
     55
     56<td width="15%"><b><a href="http://hadoop.apache.org/core/docs/current/api/org/apache/hadoop/examples/AggregateWordCount.html" title="class in org.apache.hadoop.examples">AggregateWordCount</a></b></td>
     57<td>This is an example Aggregated Hadoop Map/Reduce application. It
     58reads the text input files, breaks each line into words and counts
     59them. The output is a locally sorted list of words and the count of how
     60often they occurred. To run: bin/hadoop jar hadoop-*-examples.jar
     61aggregatewordcount in-dir out-dir numOfReducers textinputformat </td>
     62</tr>
     63<tr class="TableRowColor" bgcolor="white">
     64<td width="15%"><b><a href="http://hadoop.apache.org/core/docs/current/api/org/apache/hadoop/examples/AggregateWordHistogram.html" title="class in org.apache.hadoop.examples">AggregateWordHistogram</a></b></td>
     65<td>This is an example Aggregated Hadoop Map/Reduce application.
     66Computes the histogram of the words in the input texts. To run:
     67bin/hadoop jar hadoop-*-examples.jar aggregatewordhist in-dir out-dir
     68numOfReducers textinputformat </td>
     69</tr>
     70<tr class="TableRowColor" bgcolor="white">
     71<td width="15%"><b><a href="http://hadoop.apache.org/core/docs/current/api/org/apache/hadoop/examples/ExampleDriver.html" title="class in org.apache.hadoop.examples">ExampleDriver</a></b></td>
     72<td>A description of an example program based on its class and a human-readable description.</td>
     73</tr>
     74
     75<tr class="TableRowColor" bgcolor="white">
     76<td width="15%"><b><a href="http://hadoop.apache.org/core/docs/current/api/org/apache/hadoop/examples/Grep.html" title="class in org.apache.hadoop.examples">Grep</a></b></td>
     77<td>&nbsp;</td>
     78</tr>
     79<tr class="TableRowColor" bgcolor="white">
     80<td width="15%"><b><a href="http://hadoop.apache.org/core/docs/current/api/org/apache/hadoop/examples/Join.html" title="class in org.apache.hadoop.examples">Join</a></b></td>
     81<td>This is the trivial map/reduce program that does absolutely nothing
     82other than use the framework to fragment and sort the input values. To
     83run: bin/hadoop jar build/hadoop-examples.jar join [-m maps] [-r
     84reduces] [-inFormat input format class] [-outFormat output format
     85class] [-outKey output key class] [-outValue output value class]
     86[-joinOp <inner |outer|override="">] [in-dir]* in-dir out-dir</inner></td>
     87</tr>
     88<tr class="TableRowColor" bgcolor="white">
     89<td width="15%"><b><a href="http://hadoop.apache.org/core/docs/current/api/org/apache/hadoop/examples/RandomTextWriter.html" title="class in org.apache.hadoop.examples">RandomTextWriter</a></b></td>
     90<td>This program uses map/reduce to just run a distributed job where
     91there is
    10892no interaction between the tasks and each task writes a large unsorted
    10993random sequence of words.To run: bin/hadoop jar
    11094hadoop-${version}-examples.jar randomtextwriter [-outFormat output
    11195format class] output</td>
    112     </tr>
    113     <tr class="TableRowColor" bgcolor="white">
    114       <td width="15%"><b><a
    115  href="http://hadoop.apache.org/core/docs/current/api/org/apache/hadoop/examples/RandomWriter.html"
    116  title="class in org.apache.hadoop.examples">RandomWriter</a></b></td>
    117       <td>This program uses map/reduce to just run a distributed
    118 job where there is
     96
     97</tr>
     98<tr class="TableRowColor" bgcolor="white">
     99<td width="15%"><b><a href="http://hadoop.apache.org/core/docs/current/api/org/apache/hadoop/examples/RandomWriter.html" title="class in org.apache.hadoop.examples">RandomWriter</a></b></td>
     100<td>This program uses map/reduce to just run a distributed job where
     101there is
    119102no interaction between the tasks and each task write a large unsorted
    120103random binary sequence file of BytesWritable.To run: bin/hadoop jar
    121104hadoop-${version}-examples.jar randomwriter [-outFormat output format
    122105class] output</td>
    123     </tr>
    124     <tr class="TableRowColor" bgcolor="white">
    125       <td width="15%"><b><a
    126  href="http://hadoop.apache.org/core/docs/current/api/org/apache/hadoop/examples/Sort.html"
    127  title="class in org.apache.hadoop.examples">Sort&lt;K,V&gt;</a></b></td>
    128       <td>This is the trivial map/reduce program that does
    129 absolutely nothing
     106</tr>
     107<tr class="TableRowColor" bgcolor="white">
     108<td width="15%"><b><a href="http://hadoop.apache.org/core/docs/current/api/org/apache/hadoop/examples/Sort.html" title="class in org.apache.hadoop.examples">Sort&lt;K,V&gt;</a></b></td>
     109<td>This is the trivial map/reduce program that does absolutely nothing
    130110other than use the framework to fragment and sort the input values.To
    131111run: bin/hadoop jar build/hadoop-examples.jar sort [-m maps] [-r
    … …  
    133113class] [-outKey output key class] [-outValue output value class]
    134114[-totalOrder pcnt num samples max splits] in-dir out-dir</td>
    135     </tr>
    136     <tr class="TableRowColor" bgcolor="white">
    137       <td width="15%"><b><a
    138  href="http://hadoop.apache.org/core/docs/current/api/org/apache/hadoop/examples/WordCount.html"
    139  title="class in org.apache.hadoop.examples">WordCount</a></b></td>
    140       <td>This is an example Hadoop Map/Reduce application.</td>
    141     </tr>
    142   </tbody>
    143 </table>
     115</tr>
     116<tr class="TableRowColor" bgcolor="white">
     117<td width="15%"><b><a href="http://hadoop.apache.org/core/docs/current/api/org/apache/hadoop/examples/WordCount.html" title="class in org.apache.hadoop.examples">WordCount</a></b></td>
     118
     119<td>This is an example Hadoop Map/Reduce application.</td>
     120</tr>
     121</tbody></table>
     122
    144123
    145124}}}