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https://issues.apache.org/jira/browse/YARN-11693?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17842324#comment-17842324
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ASF GitHub Bot commented on YARN-11693:
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mohitgaggar opened a new pull request, #6786:
URL: https://github.com/apache/hadoop/pull/6786
…, running container manager and container queue manager classes
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> Refactor Container scheduler
> ----------------------------
>
> Key: YARN-11693
> URL: https://issues.apache.org/jira/browse/YARN-11693
> Project: Hadoop YARN
> Issue Type: Task
> Components: scheduler, scheduler preemption
> Reporter: Mohit Gaggar
> Priority: Major
>
> Container Scheduler class, responsible for scheduling containers on nodes
> handles multiple smaller responsibilities making it hard to extend the
> functionalities.
> This PR works on breaking down the class responsibilities into
> * ContainerQueueManager : handles all queuing related functions, like
> adding/removing to queue
> * ContainerStarter : maintains the running queue of containers and starts
> new containers
> * ContainerPolicyManager : handles the container termination/pausing policy
> when enough resources not available
> * ContainerScheduler : main class which works with other helper classes to
> maintain container queues
> !https://msdata.visualstudio.com/25bee5cc-1a60-44a1-904d-a734363b40d4/_apis/git/repositories/719ef898-e962-4b70-a49b-03c67abb2b07/pullRequests/1249358/attachments/Refactoring%20Container%20Scheduler%20%281%29.png|width=710,height=441!
>
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