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Jian He commented on YARN-1879: ------------------------------- Both register and unregister are checking whether the application has registered/unregistered before. If the application has already registered/unregistered, duplicate register/unregister attempts can cause exceptions. are they still idempotent ? > Mark Idempotent/AtMostOnce annotations to ApplicationMasterProtocol > ------------------------------------------------------------------- > > Key: YARN-1879 > URL: https://issues.apache.org/jira/browse/YARN-1879 > Project: Hadoop YARN > Issue Type: Sub-task > Components: resourcemanager > Reporter: Jian He > Assignee: Xuan Gong > Priority: Blocker > Attachments: YARN-1879.1.patch > > -- This message was sent by Atlassian JIRA (v6.2#6252)