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https://issues.apache.org/jira/browse/YARN-2209?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14044096#comment-14044096
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Vinod Kumar Vavilapalli commented on YARN-2209:
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Makes sense. We need to be consistent across allocate/unregister calls. For
things like shut-down and resync, I prefer exceptions. We can deprecate the
corresponding AMCommands.
> Replace allocate#resync command with ApplicationMasterNotRegisteredException
> to indicate AM to re-register on RM restart
> ------------------------------------------------------------------------------------------------------------------------
>
> Key: YARN-2209
> URL: https://issues.apache.org/jira/browse/YARN-2209
> Project: Hadoop YARN
> Issue Type: Improvement
> Reporter: Jian He
> Assignee: Jian He
>
> YARN-1365 introduced an ApplicationMasterNotRegisteredException to indicate
> application to re-register on RM restart. we should do the same for
> AMS#allocate call also.
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