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https://issues.apache.org/jira/browse/YARN-6406?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15957432#comment-15957432
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Hudson commented on YARN-6406:
------------------------------
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #11531 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/11531/])
YARN-6406. Remove SchedulerRequestKeys when no more pending (wangda: rev
87e2ef8c985bb72a916477e8783359f2859f7890)
* (edit)
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/placement/LocalitySchedulingPlacementSet.java
* (edit)
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestLeafQueue.java
* (edit)
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/TestRMWebServicesApps.java
* (edit)
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/AppSchedulingInfo.java
* (edit)
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestCapacityScheduler.java
> Remove SchedulerRequestKeys when no more pending ResourceRequest
> ----------------------------------------------------------------
>
> Key: YARN-6406
> URL: https://issues.apache.org/jira/browse/YARN-6406
> Project: Hadoop YARN
> Issue Type: Improvement
> Affects Versions: 2.8.0, 2.7.3, 3.0.0-alpha2
> Reporter: Arun Suresh
> Assignee: Arun Suresh
> Fix For: 3.0.0-alpha3
>
> Attachments: YARN-6406.001.patch, YARN-6406.002.patch
>
>
> YARN-5540 introduced some optimizations to remove satisfied SchedulerKeys
> from the AppScheduleingInfo. It looks like after YARN-6040,
> ScedulerRequestKeys are removed only if the Application sends a 0
> numContainers requests. While earlier, the outstanding schedulerKeys were
> also remove as soon as a container is allocated as well.
> An additional optimization we were hoping to include is to remove the
> ResourceRequests itself once the numContainers == 0, since we see in our
> clusters that the RM heap space consumption increases drastically due to a
> large number of ResourceRequests with 0 num containers.
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