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https://issues.apache.org/jira/browse/YARN-3077?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14290235#comment-14290235
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Jian He commented on YARN-3077:
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doing above, the createRootDirRecursively visibility can be changed to private
> RM should create yarn.resourcemanager.zk-state-store.parent-path recursively
> ----------------------------------------------------------------------------
>
> Key: YARN-3077
> URL: https://issues.apache.org/jira/browse/YARN-3077
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: resourcemanager
> Reporter: Chun Chen
> Attachments: YARN-3077.patch
>
>
> If multiple clusters share a zookeeper cluster, users might use
> /rmstore/${yarn.resourcemanager.cluster-id} as the state store path. If user
> specified a customer value which is not a top-level path for
> ${yarn.resourcemanager.zk-state-store.parent-path}, yarn should create parent
> path first.
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