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https://issues.apache.org/jira/browse/YARN-1490?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13867386#comment-13867386
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Jian He commented on YARN-1490:
-------------------------------
- New patch got rid of the local flag transferStateFromPreviousAttempt inside
RMAppAttemptImpl and SchedulerApplication, and notify the
transferContainersFromPreviousAttempt through AppAddedSchedulerEvent , and
keepContainersAcrossAttempts through AppRemovedSchedulerEvent.
- similar things for RMAppAttempt to notify RMApp for transferring the state
through event.
- Fixed a bug in RMAppAttemptImpl.BaseFinalTransition. Missed to set the flag
to false in RMAppFailedAttemptEvent if this is the last attempt or unmanagedAM.
> RM should optionally not kill all containers when an ApplicationMaster exits
> ----------------------------------------------------------------------------
>
> Key: YARN-1490
> URL: https://issues.apache.org/jira/browse/YARN-1490
> Project: Hadoop YARN
> Issue Type: Sub-task
> Reporter: Vinod Kumar Vavilapalli
> Assignee: Jian He
> Attachments: YARN-1490.1.patch, YARN-1490.2.patch, YARN-1490.3.patch,
> YARN-1490.4.patch, YARN-1490.5.patch, YARN-1490.6.patch, YARN-1490.7.patch,
> YARN-1490.8.patch
>
>
> This is needed to enable work-preserving AM restart. Some apps can chose to
> reconnect with old running containers, some may not want to. This should be
> an option.
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