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Anubhav Dhoot commented on YARN-1365: ------------------------------------- The error is RMAppRecoveredTransition leaves it in LAUNCHED and then scheduler executes ATTEMPT_ADDED. I see Jian fixed it in a certain way in YARN-1368. But that only addresses it if its in LAUNCHED. If the state reaches RUNNING before that we still get the error. The option is see is we pass in a flag to AppAttemptAddedSchedulerEvent that tells scheduler not to issue ATTEMPT_ADDED. This will be set in RMAppRecoveredTransition. Lemme know what you think > ApplicationMasterService to allow Register and Unregister of an app that was > running before restart > --------------------------------------------------------------------------------------------------- > > Key: YARN-1365 > URL: https://issues.apache.org/jira/browse/YARN-1365 > Project: Hadoop YARN > Issue Type: Sub-task > Components: resourcemanager > Reporter: Bikas Saha > Assignee: Anubhav Dhoot > Attachments: YARN-1365.001.patch, YARN-1365.002.patch, > YARN-1365.003.patch, YARN-1365.initial.patch > > > For an application that was running before restart, the > ApplicationMasterService currently throws an exception when the app tries to > make the initial register or final unregister call. These should succeed and > the RMApp state machine should transition to completed like normal. > Unregistration should succeed for an app that the RM considers complete since > the RM may have died after saving completion in the store but before > notifying the AM that the AM is free to exit. -- This message was sent by Atlassian JIRA (v6.2#6252)