[jira] [Commented] (MAPREDUCE-3115) OOM When the value for the property "mapred.map.multithreadedrunner.class" is set to MultithreadedMapper instance.

["Hadoop QA (Commented) (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/MAPREDUCE-3115?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13146225#comment-13146225 ] 

Hadoop QA commented on MAPREDUCE-3115:
--------------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12502908/MAPREDUCE-3115.patch
  against trunk revision .

    +1 @author.  The patch does not contain any @author tags.

    +1 tests included.  The patch appears to include 3 new or modified tests.

    -1 patch.  The patch command could not apply the patch.

Console output: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/1271//console

This message is automatically generated.
                
> 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: 0.20.205.1, 0.23.0
>         Environment: NA
>            Reporter: Bhallamudi Venkata Siva Kamesh
>         Attachments: 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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