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Posted to mapreduce-issues@hadoop.apache.org by "Jithin Justin (JIRA)" <ji...@apache.org> on 2014/06/09 17:08:02 UTC

[jira] [Created] (MAPREDUCE-5919) Usage of aggregate framework always results in execution of base class ValueAggregatorBaseDescriptor.

Jithin Justin created MAPREDUCE-5919:
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             Summary: Usage of aggregate framework always results in execution of base class ValueAggregatorBaseDescriptor.
                 Key: MAPREDUCE-5919
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5919
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: mrv2
    Affects Versions: 2.2.0, 2.4.0
         Environment: ubuntu 12.04
            Reporter: Jithin Justin


The bug was discovered when I was trying to execute aggregatewordcount example in hadoop example jar file. No matter what I did, the output was always the number of lines in the input text file. This is what exactly ValueAggregatorBaseDescriptor class does. So because of this bug, custom aggregation functions are not possible.



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