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https://issues.apache.org/jira/browse/YARN-2962?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14340380#comment-14340380
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Karthik Kambatla commented on YARN-2962:
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[~varun_saxena] - it will indeed be backwards incompatible. We should get this
into trunk. To include this in branch-2, we should probably guard this with a
config, and users will have to format the store to start using this. Otherwise,
an RM restart will fail.
> 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: Bug
> Components: resourcemanager
> Affects Versions: 2.6.0
> Reporter: Karthik Kambatla
> Assignee: Varun Saxena
> Priority: Critical
>
> 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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