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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2579) Deadlock when EmbeddedElectorService and FatalEventDispatcher try to transition RM to StandBy at the same time
Date Thu, 06 Nov 2014 11:52:42 GMT

    [ https://issues.apache.org/jira/browse/YARN-2579?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14200117#comment-14200117
] 

Hudson commented on YARN-2579:
------------------------------

SUCCESS: Integrated in Hadoop-Yarn-trunk #735 (See [https://builds.apache.org/job/Hadoop-Yarn-trunk/735/])
YARN-2579. Fixed a deadlock issue when EmbeddedElectorService and FatalEventDispatcher try
to transition RM to StandBy at the same time. Contributed by Rohith Sharmaks (jianhe: rev
395275af8622c780b9071c243422b0780e096202)
* hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/recovery/RMStateStore.java
* hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/RMFatalEventType.java
* hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/TestRMFailover.java
* hadoop-yarn-project/CHANGES.txt
* hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/TestRMHA.java
* hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/ResourceManager.java


> Deadlock when EmbeddedElectorService and FatalEventDispatcher try to transition RM to
StandBy at the same time
> --------------------------------------------------------------------------------------------------------------
>
>                 Key: YARN-2579
>                 URL: https://issues.apache.org/jira/browse/YARN-2579
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager
>    Affects Versions: 2.5.1
>            Reporter: Rohith
>            Assignee: Rohith
>            Priority: Blocker
>             Fix For: 2.6.0
>
>         Attachments: YARN-2579-20141105.1.patch, YARN-2579-20141105.2.patch, YARN-2579-20141105.3.patch,
YARN-2579-20141105.patch, YARN-2579.patch, YARN-2579.patch
>
>
> I encountered a situaltion where both RM's web page was able to access and its state
displayed as Active. But One of the RM's ActiveServices were stopped.



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