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https://issues.apache.org/jira/browse/YARN-4044?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14805267#comment-14805267
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Naganarasimha G R commented on YARN-4044:
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Thanks for pointing out [~sunilg], Now i recollect why its like that, its
because of {{CompositEventHandler in MultiThreadedDispatcher}} which is used to
dispatch the events in multiple threads and all the events related to a given
app they want to send it in one thread. And equals we cannot ensure using appid
hence equals is not overwritten. I feel the design is not appropriate here but
anyway i am modifying the design so modifications in your current patch should
for it should be ok.
> Running applications information changes such as movequeue is not published
> to TimeLine server
> ----------------------------------------------------------------------------------------------
>
> Key: YARN-4044
> URL: https://issues.apache.org/jira/browse/YARN-4044
> Project: Hadoop YARN
> Issue Type: Bug
> Components: resourcemanager, timelineserver
> Affects Versions: 2.7.0
> Reporter: Sunil G
> Assignee: Sunil G
> Priority: Critical
> Attachments: 0001-YARN-4044.patch, 0002-YARN-4044.patch,
> 0003-YARN-4044.patch, 0004-YARN-4044.patch
>
>
> SystemMetricsPublisher need to expose an appUpdated api to update any change
> for a running application.
> Events can be
> - change of queue for a running application.
> - change of application priority for a running application.
> This ticket intends to handle both RM and timeline side changes.
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