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https://issues.apache.org/jira/browse/YARN-8606?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16564054#comment-16564054
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Suma Shivaprasad commented on YARN-8606:
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Thanks for the patch [~bibinchundatt]. createApplicationMasterService is
already registering an EventDispatcher for
OpportunisticContainerAllocatorAMService when opportunistic scheduling is
enabled in RMActiveServices composite service. Can you pls explain what is the
issue and what this patch intends to fix?
> Opportunistic scheduling doesnt work after failover
> ---------------------------------------------------
>
> Key: YARN-8606
> URL: https://issues.apache.org/jira/browse/YARN-8606
> Project: Hadoop YARN
> Issue Type: Bug
> Affects Versions: 3.1.0
> Reporter: Bibin A Chundatt
> Assignee: Bibin A Chundatt
> Priority: Blocker
> Attachments: YARN-8606.001.patch
>
>
> EventDispatcher for oppurtunistic scheduling is added to RM composite service
> and not RMActiveService composite service causing dispatcher to be started
> once on RM restart.
> Issue credits: Rakesh
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