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https://issues.apache.org/jira/browse/YARN-2962?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16044443#comment-16044443
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Bibin A Chundatt commented on YARN-2962:
----------------------------------------
[~varun_saxena]/[~templedf]
Had the time to check the change . Currently as per the following code since
the VERSION is marked as 2 .
{code}
161 protected static final Version CURRENT_VERSION_INFO = Version
162 .newInstance(2, 0);
{code}
{{RMStateStore#checkVersion}} will fail and RM will not be able to start with
old state store.
> 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
> Fix For: 2.9.0, 3.0.0-alpha4
>
> 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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