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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3260) AM attempt fail to register before RM processes launch event
Date Fri, 14 Jul 2017 20:31:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-3260?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16087996#comment-16087996
] 

Hudson commented on YARN-3260:
------------------------------

SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #12008 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/12008/])
YARN-3260. AM attempt fail to register before RM processes launch event. (jlowe: rev a5ae5ac50e97cf829c41dcf01655cd9bd4d36a00)
* (edit) hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/rmapp/attempt/RMAppAttemptImpl.java
* (edit) hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/rmapp/attempt/TestRMAppAttemptTransitions.java


> AM attempt fail to register before RM processes launch event
> ------------------------------------------------------------
>
>                 Key: YARN-3260
>                 URL: https://issues.apache.org/jira/browse/YARN-3260
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager
>    Affects Versions: 2.6.0
>            Reporter: Jason Lowe
>            Assignee: Bibin A Chundatt
>            Priority: Critical
>             Fix For: 2.9.0, 2.7.4, 3.0.0-beta1, 2.8.2
>
>         Attachments: YARN-3260.001.patch
>
>
> The RM on one of our clusters was running behind on processing AsyncDispatcher events,
and this caused AMs to fail to register due to an NPE.  The AM was launched and attempting
to register before the RMAppAttemptImpl had processed the LAUNCHED event, and the client to
AM token had not been generated yet.  The NPE occurred because the ApplicationMasterService
tried to encode the missing token.



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