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https://issues.apache.org/jira/browse/MAPREDUCE-3837?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13221053#comment-13221053
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Alejandro Abdelnur commented on MAPREDUCE-3837:
-----------------------------------------------
Mayank,
* Built branch-1 with your patch
* Configured the cluster, run a job test is OK
* Configured the mapred-site.xml with 'mapred.jobtracker.restart.recover=true'
* Restarted the JT
* Created a IN data file in my HDFS home dir
* Submitted 5 wordcount jobs
{code}
bin/hadoop jar hadoop-*examples*jar wordcount IN OUT0 &
bin/hadoop jar hadoop-*examples*jar wordcount IN OUT1 &
bin/hadoop jar hadoop-*examples*jar wordcount IN OUT2 &
bin/hadoop jar hadoop-*examples*jar wordcount IN OUT3 &
bin/hadoop jar hadoop-*examples*jar wordcount IN OUT4 &
{code}
* Waited till they are all running
* Killed the JT
* Restarted the JT
The jobs are not recovered, and what I see in the logs is:
{code}
2012-03-02 08:55:22,164 INFO org.apache.hadoop.mapred.JobTracker: Found an
incomplete job directory job_201203020852_0001. Deleting it!!
2012-03-02 08:55:22,194 INFO org.apache.hadoop.mapred.JobTracker: Found an
incomplete job directory job_201203020852_0002. Deleting it!!
2012-03-02 08:55:22,204 INFO org.apache.hadoop.mapred.JobTracker: Found an
incomplete job directory job_201203020852_0003. Deleting it!!
2012-03-02 08:55:22,224 INFO org.apache.hadoop.mapred.JobTracker: Found an
incomplete job directory job_201203020852_0004. Deleting it!!
2012-03-02 08:55:22,236 INFO org.apache.hadoop.mapred.JobTracker: Found an
incomplete job directory job_201203020852_0005. Deleting it!!
{code}
Am I missing some additional configuration?
> 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
> Fix For: 0.24.0, 0.22.1, 0.23.2
>
> Attachments: 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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