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From "Allen Wittenauer (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-3115) OOM When the value for the property "mapred.map.multithreadedrunner.class" is set to MultithreadedMapper instance.
Date Wed, 06 May 2015 03:37:56 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-3115?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Allen Wittenauer updated MAPREDUCE-3115:
----------------------------------------
    Labels: BB2015-05-TBR  (was: )

> OOM When the value for the property "mapred.map.multithreadedrunner.class" is set to
MultithreadedMapper instance.
> ------------------------------------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-3115
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3115
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv1
>    Affects Versions: 0.23.0, 1.0.0
>         Environment: NA
>            Reporter: Bhallamudi Venkata Siva Kamesh
>              Labels: BB2015-05-TBR
>         Attachments: MAPREDUCE-3115.2.patch, MAPREDUCE-3115.patch
>
>
> 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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