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https://issues.apache.org/jira/browse/MAPREDUCE-3837?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13207198#comment-13207198
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Konstantin Shvachko commented on MAPREDUCE-3837:
------------------------------------------------
+1 The patch looks good. It enables an important feature of automatic job
recovery on JT startup.
> Hadoop 22 Job tracker is not able to recover job in case of crash and after
> that no user can submit job.
> --------------------------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-3837
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3837
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Affects Versions: 0.22.0
> Reporter: Mayank Bansal
> Assignee: Mayank Bansal
> Attachments: PATCH-MAPREDUCE-3837.patch,
> PATCH-TRUNK-MAPREDUCE-3837.patch
>
>
> If job tracker is crashed while running , and there were some jobs are
> running , so if job tracker's property mapreduce.jobtracker.restart.recover
> is true then it should recover the job.
> However the current behavior is as follows
> jobtracker try to restore the jobs but it can not . And after that jobtracker
> closes its handle to hdfs and nobody else can submit job.
> Thanks,
> Mayank
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