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https://issues.apache.org/jira/browse/YARN-1363?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13838620#comment-13838620
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Zhijie Shen commented on YARN-1363:
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[~ojoshi], thanks for the preliminary work. Let me take it over to finish work.
> Get / Cancel / Renew delegation token api should be non blocking
> ----------------------------------------------------------------
>
> Key: YARN-1363
> URL: https://issues.apache.org/jira/browse/YARN-1363
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Omkar Vinit Joshi
> Assignee: Omkar Vinit Joshi
> Attachments: YARN-1363.1.patch
>
>
> Today GetDelgationToken, CancelDelegationToken and RenewDelegationToken are
> all blocking apis.
> * As a part of these calls we try to update RMStateStore and that may slow it
> down.
> * Now as we have limited number of client request handlers we may fill up
> client handlers quickly.
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