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From "Jithin Justin (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MAPREDUCE-5919) Usage of aggregate framework always results in execution of base class ValueAggregatorBaseDescriptor.
Date Mon, 09 Jun 2014 15:08:02 GMT
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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