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https://issues.apache.org/jira/browse/YARN-6406?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15968542#comment-15968542
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Hadoop QA commented on YARN-6406:
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue}  0m  
0s{color} | {color:blue} Docker mode activated. {color} |
| {color:red}-1{color} | {color:red} docker {color} | {color:red}  0m  
6s{color} | {color:red} Docker failed to build yetus/hadoop:b59b8b7. {color} |
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|| Subsystem || Report/Notes ||
| JIRA Issue | YARN-6406 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12863411/YARN-6406-branch-2.001.patch
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| Console output | 
https://builds.apache.org/job/PreCommit-YARN-Build/15638/console |
| Powered by | Apache Yetus 0.5.0-SNAPSHOT   http://yetus.apache.org |


This message was automatically generated.



> 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-6406-branch-2.001.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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