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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-1010) FairScheduler: decouple container scheduling from nodemanager heartbeats
Date Wed, 02 Oct 2013 10:59:26 GMT

    [ https://issues.apache.org/jira/browse/YARN-1010?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13783813#comment-13783813
] 

Hudson commented on YARN-1010:
------------------------------

FAILURE: Integrated in Hadoop-Yarn-trunk #350 (See [https://builds.apache.org/job/Hadoop-Yarn-trunk/350/])
YARN-1010. FairScheduler: decouple container scheduling from nodemanager heartbeats. (Wei
Yan via Sandy Ryza) (sandy: http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1528192)
* /hadoop/common/trunk/hadoop-yarn-project/CHANGES.txt
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/AppSchedulable.java
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSSchedulerApp.java
* /hadoop/common/trunk/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/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FairSchedulerConfiguration.java
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/TestFSSchedulerApp.java
* /hadoop/common/trunk/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: decouple container scheduling from nodemanager heartbeats
> ------------------------------------------------------------------------
>
>                 Key: YARN-1010
>                 URL: https://issues.apache.org/jira/browse/YARN-1010
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: scheduler
>    Affects Versions: 2.1.0-beta
>            Reporter: Alejandro Abdelnur
>            Assignee: Wei Yan
>            Priority: Critical
>             Fix For: 2.3.0
>
>         Attachments: YARN-1010.patch, YARN-1010.patch
>
>
> Currently scheduling for a node is done when a node heartbeats.
> For large cluster where the heartbeat interval is set to several seconds this delays
scheduling of incoming allocations significantly.
> We could have a continuous loop scanning all nodes and doing scheduling. If there is
availability AMs will get the allocation in the next heartbeat after the one that placed the
request.



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