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https://issues.apache.org/jira/browse/YARN-3231?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14348567#comment-14348567
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Hudson commented on YARN-3231:
------------------------------

FAILURE: Integrated in Hadoop-Yarn-trunk-Java8 #123 (See 
[https://builds.apache.org/job/Hadoop-Yarn-trunk-Java8/123/])
YARN-3231. FairScheduler: Changing queueMaxRunningApps interferes with pending 
jobs. (Siqi Li via kasha) (kasha: rev 22426a1c9f4bd616558089b6862fd34ab42d19a7)
* 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FairScheduler.java
* 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/MaxRunningAppsEnforcer.java
* hadoop-yarn-project/CHANGES.txt
* 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/TestFairScheduler.java


> FairScheduler: Changing queueMaxRunningApps interferes with pending jobs
> ------------------------------------------------------------------------
>
>                 Key: YARN-3231
>                 URL: https://issues.apache.org/jira/browse/YARN-3231
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Siqi Li
>            Assignee: Siqi Li
>            Priority: Critical
>             Fix For: 2.7.0
>
>         Attachments: YARN-3231.v1.patch, YARN-3231.v2.patch, 
> YARN-3231.v3.patch, YARN-3231.v4.patch
>
>
> When a queue is piling up with a lot of pending jobs due to the 
> maxRunningApps limit. We want to increase this property on the fly to make 
> some of the pending job active. However, once we increase the limit, all 
> pending jobs were not assigned any resource, and were stuck forever.



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