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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-5465) Container killed before hprof dumps profile.out
Date Thu, 19 Mar 2015 19:51:39 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-5465?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14369991#comment-14369991
] 

Hadoop QA commented on MAPREDUCE-5465:
--------------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12666262/MAPREDUCE-5465-8.patch
  against trunk revision 61a4c7f.

    {color:red}-1 patch{color}.  The patch command could not apply the patch.

Console output: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/5314//console

This message is automatically generated.

> Container killed before hprof dumps profile.out
> -----------------------------------------------
>
>                 Key: MAPREDUCE-5465
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5465
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: mr-am, mrv2
>            Reporter: Radim Kolar
>            Assignee: Ming Ma
>         Attachments: MAPREDUCE-5465-2.patch, MAPREDUCE-5465-3.patch, MAPREDUCE-5465-4.patch,
MAPREDUCE-5465-5.patch, MAPREDUCE-5465-6.patch, MAPREDUCE-5465-7.patch, MAPREDUCE-5465-8.patch,
MAPREDUCE-5465.patch
>
>
> If there is profiling enabled for mapper or reducer then hprof dumps profile.out at process
exit. It is dumped after task signaled to AM that work is finished.
> AM kills container with finished work without waiting for hprof to finish dumps. If hprof
is dumping larger outputs (such as with depth=4 while depth=3 works) , it could not finish
dump in time before being killed making entire dump unusable because cpu and heap stats are
missing.
> There needs to be better delay before container is killed if profiling is enabled.



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