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Posted to mapreduce-dev@hadoop.apache.org by "Cosmin Catanoaie (JIRA)" <ji...@apache.org> on 2010/09/19 20:43:33 UTC
[jira] Created: (MAPREDUCE-2079) PipesMapRunner does not use map
output classes
PipesMapRunner does not use map output classes
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Key: MAPREDUCE-2079
URL: https://issues.apache.org/jira/browse/MAPREDUCE-2079
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: pipes
Affects Versions: 0.21.0, 0.20.2, 0.20.1, 0.20.3, 0.21.1, 0.22.0
Environment: Ubuntu 10.04 Lucid 64bit, Java(TM) SE Runtime Environment (build 1.6.0_20-b02), Hadoop 20.2 (Cloudera distribution)
Reporter: Cosmin Catanoaie
Priority: Blocker
In org.apache.hadoop.mapred.pipes.PipesMapRunner.java at lines 71-72 instead of:
- job.getOutputKeyClass() and
- job.getOutputValueClass()
there should be called:
- job.getMapOutputKeyClass() and
- job.getMapOutputValueClass()
This modification will allow pipe jobs to use intermediate map output classes different from the job final output classes.
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