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https://issues.apache.org/jira/browse/HADOOP-1279?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12491739
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arkady borkovsky commented on HADOOP-1279:
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It would be very nice if the information about completed jobs is persitent and
is NEVER lost.
Once it purged from JobTracker RAM, it should be moved into some persistent
storage and still be retrievable.
> list of completed jobs purges jobs based on submission not on completion age
> ----------------------------------------------------------------------------
>
> Key: HADOOP-1279
> URL: https://issues.apache.org/jira/browse/HADOOP-1279
> Project: Hadoop
> Issue Type: Bug
> Components: mapred
> Environment: all
> Reporter: Alejandro Abdelnur
> Assigned To: Arun C Murthy
> Fix For: 0.13.0
>
> Attachments: HADOOP-1279_20070420_1.patch
>
>
> The JobTracker keeps at most the last 100 completed jobs.
> One this limit is exceeded and there is a new completed job the old submitted
> job in completed state is removed regardless if there are jobs that have
> finished much earlier in the completed list.
> The job should be added at completion time, not a submission time to avoid
> this problem.
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