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https://issues.apache.org/jira/browse/YARN-209?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13617352#comment-13617352
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Hudson commented on YARN-209:
-----------------------------
Integrated in Hadoop-Mapreduce-trunk #1386 (See
[https://builds.apache.org/job/Hadoop-Mapreduce-trunk/1386/])
YARN-209. Fix CapacityScheduler to trigger application-activation when the
cluster capacity changes. Contributed by Zhijie Shen. (Revision 1461773)
Result = SUCCESS
vinodkv :
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1461773
Files :
* /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/capacity/LeafQueue.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/TestRM.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/capacity/TestLeafQueue.java
> Capacity scheduler doesn't trigger app-activation after adding nodes
> --------------------------------------------------------------------
>
> Key: YARN-209
> URL: https://issues.apache.org/jira/browse/YARN-209
> Project: Hadoop YARN
> Issue Type: Bug
> Components: capacityscheduler
> Reporter: Bikas Saha
> Assignee: Zhijie Shen
> Fix For: 2.0.5-beta
>
> Attachments: YARN-209.1.patch, YARN-209.2.patch, YARN-209.3.patch,
> YARN-209.4.patch, YARN-209-test.patch
>
>
> Say application A is submitted but at that time it does not meet the bar for
> activation because of resource limit settings for applications. After that if
> more hardware is added to the system and the application becomes valid it
> still remains in pending state, likely forever.
> This might be rare to hit in real life because enough NM's heartbeat to the
> RM before applications can get submitted. But a change in settings or
> heartbeat interval might make it easier to repro. In RM restart scenarios,
> this will likely hit more if its implemented by re-playing events and
> re-submitting applications to the scheduler before the RPC to NM's is
> activated.
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