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From "Vinod Kumar Vavilapalli (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-3347) Resource manager is not respawning MRAppMaster process if it goes down in the middle of job execution and the job is getting failed.
Date Fri, 04 Nov 2011 11:15:01 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-3347?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13143919#comment-13143919
] 

Vinod Kumar Vavilapalli commented on MAPREDUCE-3347:
----------------------------------------------------

Ramgopal, do you have retries enabled? Bump yarn.resourcemanager.am.max-retries to say 3 or
4 and retry with a fresh cluster. The default value is 1, so the retry is off by default.
                
> Resource manager is not respawning MRAppMaster process if it goes down in the middle
of job execution and the job is getting failed.
> ------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-3347
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3347
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv2
>    Affects Versions: 0.23.0
>            Reporter: Ramgopal N
>
> ApplicationMaster service should recover the job if MRAppMaster process goes down in
the middle of job execution.If not MRAppMaster process becomes the single point of failure
for the job and losses the advantage of MRV1 framework.

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