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https://issues.apache.org/jira/browse/YARN-2962?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15961027#comment-15961027
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Daniel Templeton commented on YARN-2962:
----------------------------------------
A couple of quick questions:
# Why are you removing the {{rm1.close()}} and {{rm2.close()}} in
{{TestZKRMStateStore.testFencing()}}?
# Why drop this log line {{LOG.info("Unknown child node with name: " +
childNodeName);}} in {{loadRMAppState()}}
Also, two super minor quibbles:
{code}
private static RMApp createMockAppForRemove(ApplicationId appId,
ApplicationAttemptId...attemptIds) {
{code} should have a space after the ellipses.
In {{yarn-default.xml}}, the first line should have a space before the
parenthesis.
If you don't mind posting a patch to fix the spaces, that would be great. If
not, I'll file a couple newbie JIRAs to fix them post-commit.
> 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-2962.01.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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