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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-4462) FairScheduler: Disallow preemption from a queue
Date Wed, 27 Jan 2016 20:37:39 GMT

    [ https://issues.apache.org/jira/browse/YARN-4462?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15120120#comment-15120120
] 

Hudson commented on YARN-4462:
------------------------------

FAILURE: Integrated in Hadoop-trunk-Commit #9194 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/9194/])
YARN-4462. FairScheduler: Disallow preemption from a queue. (Tao Jie via (kasha: rev fb238d7e5dcd96466c8938b13ca7f13cedecb08a)
* hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSParentQueue.java
* 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
* hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/FairSchedulerPage.java
* hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSQueue.java
* hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/AllocationConfiguration.java
* hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/dao/FairSchedulerQueueInfo.java
* hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/AllocationFileLoaderService.java
* hadoop-yarn-project/CHANGES.txt


> FairScheduler: Disallow preemption from a queue
> -----------------------------------------------
>
>                 Key: YARN-4462
>                 URL: https://issues.apache.org/jira/browse/YARN-4462
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: fairscheduler
>    Affects Versions: 2.6.0
>            Reporter: Tao Jie
>            Assignee: Tao Jie
>         Attachments: YARN-4462.001.patch, YARN-4462.002.patch, YARN-4462.003.patch, YARN-4462.004.patch
>
>
> When scheduler preemption is enabled, applications could be preempted if they obtain
resource over they should take. 
> When a mapreduce application is preempted some resource, it just runs slower. However,
when the preempted application is a long-run service, such as tomcat running in slider, the
service would fail.
> So we should have a flag for application to indicate the scheduler that those application
should not be preempted. 



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