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https://issues.apache.org/jira/browse/MAPREDUCE-3837?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13560169#comment-13560169
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Manish Malhotra commented on MAPREDUCE-3837:
--------------------------------------------
Hi,
Thanks for this patch, its very important, in future I think with ZK would be
great for JT failover stuff.
I need some help for patching this. I'm using hadoop 1.0.2 and want to apply
this patch.
I believe 1.0.2 is descendent of 0.20.2.
So, please let me know does any of this patch will work for 1.0.2 or not.
Regards,
Manish
> 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: New Feature
> Affects Versions: 0.22.0, 1.1.1
> Reporter: Mayank Bansal
> Assignee: Mayank Bansal
> Fix For: 1.1.0, 0.22.1
>
> Attachments: MAPREDUCE-3837_addendum.patch,
> PATCH-HADOOP-1-MAPREDUCE-3837-1.patch, PATCH-HADOOP-1-MAPREDUCE-3837-2.patch,
> PATCH-HADOOP-1-MAPREDUCE-3837-3.patch, PATCH-HADOOP-1-MAPREDUCE-3837-4.patch,
> PATCH-HADOOP-1-MAPREDUCE-3837.patch, 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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