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From "Bhallamudi Venkata Siva Kamesh (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MAPREDUCE-3115) OOM When the value for the property "mapred.map.multithreadedrunner.class" is set to MultithreadedMapper instance.
Date Wed, 28 Sep 2011 13:52:45 GMT
OOM When the value for the property "mapred.map.multithreadedrunner.class" is set to MultithreadedMapper
instance.
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                 Key: MAPREDUCE-3115
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3115
             Project: Hadoop Map/Reduce
          Issue Type: Bug
         Environment: NA
            Reporter: Bhallamudi Venkata Siva Kamesh


When we set the value for the property *mapred.map.multithreadedrunner.class* as instance
of MultithreadedMapper, using MultithreadedMapper.setMapperClass(), it simply throws IllegalArgumentException.
But when we set the same property, using job's conf object using job.getConfiguration().setClass(*mapred.map.multithreadedrunner.class*,
MultithreadedMapper.class, Mapper.class), throws OOM.

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