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https://issues.apache.org/jira/browse/YARN-2962?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15989458#comment-15989458
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Hudson commented on YARN-2962:
------------------------------

SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #11652 (See 
[https://builds.apache.org/job/Hadoop-trunk-Commit/11652/])
YARN-2962. ZKRMStateStore: Limit the number of znodes under a znode (templedf: 
rev 2e52789edf68016e7a3f450164f8bd3d8e6cb210)
* (edit) 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/recovery/RMStateStoreTestBase.java
* (edit) 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/resources/yarn-default.xml
* (edit) 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/recovery/TestZKRMStateStore.java
* (edit) 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/conf/YarnConfiguration.java
* (edit) 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/TestRMStoreCommands.java
* (edit) 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/recovery/ZKRMStateStore.java


> ZKRMStateStore: Limit the number of znodes under a znode
> --------------------------------------------------------
>
>                 Key: YARN-2962
>                 URL: https://issues.apache.org/jira/browse/YARN-2962
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: resourcemanager
>    Affects Versions: 2.6.0
>            Reporter: Karthik Kambatla
>            Assignee: Varun Saxena
>            Priority: Critical
>         Attachments: YARN-2962.006.patch, YARN-2962.007.patch, 
> YARN-2962.008.patch, YARN-2962.008.patch, YARN-2962.009.patch, 
> YARN-2962.010.patch, YARN-2962.011.patch, YARN-2962.01.patch, 
> YARN-2962.04.patch, YARN-2962.05.patch, YARN-2962.2.patch, YARN-2962.3.patch
>
>
> We ran into this issue where we were hitting the default ZK server message 
> size configs, primarily because the message had too many znodes even though 
> they individually they were all small.



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