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https://issues.apache.org/jira/browse/MAPREDUCE-5650?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13854066#comment-13854066
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Tom White commented on MAPREDUCE-5650:
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I can't see how mapreduce.task.profile.map/reduce.params could ever work since
mapreduce.task.profile.params is always passed as a JVM parameter to the task
JVM regardless of whether the more specific parameters are set. So I agree it's
a bug, and the fix looks good.
> Job fails when hprof mapreduce.task.profile.map/reduce.params is specified
> --------------------------------------------------------------------------
>
> Key: MAPREDUCE-5650
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5650
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: mrv2
> Affects Versions: 2.2.0
> Reporter: Gera Shegalov
> Assignee: Gera Shegalov
> Attachments: MAPREDUCE-5650.v01.patch, MAPREDUCE-5650.v02.patch
>
>
> When one uses dedicated hprof mapreduce.task.profile.map.params or
> mapreduce.task.profile.reduce.params, the profiled tasks will fail to launch
> because hprof parameters are supplied to the child jvm twice.
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