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https://issues.apache.org/jira/browse/YARN-556?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13993895#comment-13993895
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Karthik Kambatla commented on YARN-556:
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For the scheduler-related work itself, the offline sync up thought it would be
best to move as much common code as possible to AbstractYarnScheduler. To
unblock the restart work at the earliest, we should do it in two phases - the
first phase that only pulls out stuff that would make it easier to handle the
recovery, and a more comprehensive re-jig later.
> RM Restart phase 2 - Work preserving restart
> --------------------------------------------
>
> Key: YARN-556
> URL: https://issues.apache.org/jira/browse/YARN-556
> Project: Hadoop YARN
> Issue Type: New Feature
> Components: resourcemanager
> Reporter: Bikas Saha
> Assignee: Bikas Saha
> Attachments: Work Preserving RM Restart.pdf,
> WorkPreservingRestartPrototype.001.patch
>
>
> YARN-128 covered storing the state needed for the RM to recover critical
> information. This umbrella jira will track changes needed to recover the
> running state of the cluster so that work can be preserved across RM restarts.
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