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https://issues.apache.org/jira/browse/YARN-1521?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13942555#comment-13942555
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Zhijie Shen commented on YARN-1521:
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bq. 2. cancelDelegationToken
The situation of cancelDelegationToken is still different from that of
renewDelegationToken. It is summarized in YARN-1860.
> Mark appropriate protocol methods with the idempotent annotation or
> AtMostOnce annotation
> -----------------------------------------------------------------------------------------
>
> Key: YARN-1521
> URL: https://issues.apache.org/jira/browse/YARN-1521
> Project: Hadoop YARN
> Issue Type: Sub-task
> Reporter: Xuan Gong
> Assignee: Xuan Gong
>
> After YARN-1028, we add the automatically failover into RMProxy. This JIRA is
> to identify whether we need to add idempotent annotation and which methods
> can be marked as idempotent.
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