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https://issues.apache.org/jira/browse/YARN-9788?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Prabhu Joseph updated YARN-9788:
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Attachment: YARN-9788-008.patch
> Queue Management API - does not support parallel updates
> --------------------------------------------------------
>
> Key: YARN-9788
> URL: https://issues.apache.org/jira/browse/YARN-9788
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: capacity scheduler
> Affects Versions: 3.3.0
> Reporter: Prabhu Joseph
> Assignee: Prabhu Joseph
> Priority: Major
> Attachments: YARN-9788-001.patch, YARN-9788-002.patch,
> YARN-9788-003.patch, YARN-9788-004.patch, YARN-9788-005.patch,
> YARN-9788-006.patch, YARN-9788-007.patch, YARN-9788-008.patch
>
>
> Queue Management API - does not support parallel updates. When there are two
> parallel schedule conf updates (logAndApplyMutation), the first update is
> overwritten by the second one.
> Currently the logAndApplyMutation creates LogMutation and stores it in a
> variable pendingMutation. This way at any given time there will be only one
> LogMutation. And so the two parallel logAndApplyMutation will override the
> pendingMutation and the later one only will be present.
> The fix is to return LogMutation object by logAndApplyMutation which can be
> passed during confirmMutation. This fixes the parallel updates.
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