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https://issues.apache.org/jira/browse/MAPREDUCE-5332?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jason Lowe updated MAPREDUCE-5332:
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Attachment: MAPREDUCE-5332-5.patch
Wow, that's a lot of test breakage.
None of the test failures appear to be related to this change. Many of them
are failing with OOM errors due to too many threads, suspect this is caused by
lingering AMs like what was reported in MAPREDUCE-5501 and YARN-1183. Also,
I'm able to reproduce many of the failures on trunk without this patch.
Uploading the same patch again to see if we can get a clean(er) run this time.
> Support token-preserving restart of history server
> --------------------------------------------------
>
> Key: MAPREDUCE-5332
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5332
> Project: Hadoop Map/Reduce
> Issue Type: New Feature
> Components: jobhistoryserver
> Reporter: Jason Lowe
> Assignee: Jason Lowe
> Attachments: MAPREDUCE-5332-2.patch, MAPREDUCE-5332-3.patch,
> MAPREDUCE-5332-4.patch, MAPREDUCE-5332-5.patch, MAPREDUCE-5332-5.patch,
> MAPREDUCE-5332.patch
>
>
> To better support rolling upgrades through a cluster, the history server
> needs the ability to restart without losing track of delegation tokens.
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