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From "Owen O'Malley (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-187) simple distributed dfs random data writer & sort example applications
Date Tue, 02 May 2006 05:30:46 GMT
simple distributed dfs random data writer & sort example applications
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         Key: HADOOP-187
         URL: http://issues.apache.org/jira/browse/HADOOP-187
     Project: Hadoop
        Type: Test

  Components: mapred  
    Versions: 0.1.1    
    Reporter: Owen O'Malley
 Assigned to: Owen O'Malley 
     Fix For: 0.2


These are the examples/benchmark programs that I've been using to test Hadoop map/reduce with.
The first is a program that runs 10 maps/node and each map writes 1 gig of random data to
a dfs file as a SequenceFile of BytesWritable/BytesWritable.

The second uses the identity map and reduce to sort the data and write it out to dfs.

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