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https://issues.apache.org/jira/browse/HADOOP-4356?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ashish Thusoo resolved HADOOP-4356.
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Resolution: Fixed
Fix Version/s: 0.19.1
Fixed as part of JIRA-4230
> [Hive] for a 2-stage map-reduce job, number of reducers not set correctly
> -------------------------------------------------------------------------
>
> Key: HADOOP-4356
> URL: https://issues.apache.org/jira/browse/HADOOP-4356
> Project: Hadoop Core
> Issue Type: Bug
> Components: contrib/hive
> Reporter: Namit Jain
> Assignee: Namit Jain
> Fix For: 0.19.1
>
>
> the number of reducers are always set to the default. In a group-by
> statement, this leads to so many redundant reducers for the 2nd map-reduce job
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