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From "Radim Kolar (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-446) Container killed before hprof dumps profile.out
Date Mon, 04 Mar 2013 02:09:12 GMT

    [ https://issues.apache.org/jira/browse/YARN-446?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13591937#comment-13591937
] 

Radim Kolar commented on YARN-446:
----------------------------------

My original idea is to have 2nd timeout value for use cases where profiling is enabled on
particular container.
                
> Container killed before hprof dumps profile.out
> -----------------------------------------------
>
>                 Key: YARN-446
>                 URL: https://issues.apache.org/jira/browse/YARN-446
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: client
>    Affects Versions: 2.0.3-alpha
>            Reporter: Radim Kolar
>
> 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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