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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