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https://issues.apache.org/jira/browse/AMBARI-12026?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14594788#comment-14594788
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Hudson commented on AMBARI-12026:
---------------------------------

FAILURE: Integrated in Ambari-trunk-Commit #2954 (See 
[https://builds.apache.org/job/Ambari-trunk-Commit/2954/])
AMBARI-12026. During rolling upgrade proces, Ambari becomes unresponsive. 
(mpapirkovskyy) (mpapyrkovskyy: 
http://git-wip-us.apache.org/repos/asf?p=ambari.git&a=commit&h=e35b02e7d20e8831ea41cb5a672185b9cbb3c9d9)
* 
ambari-server/src/test/java/org/apache/ambari/server/state/cluster/ClusterDeadlockTest.java
* 
ambari-server/src/test/java/org/apache/ambari/server/testing/DeadlockWarningThread.java
* ambari-server/src/main/java/org/apache/ambari/server/state/ConfigImpl.java


> During rolling upgrade proces, Ambari becomes unresponsive
> ----------------------------------------------------------
>
>                 Key: AMBARI-12026
>                 URL: https://issues.apache.org/jira/browse/AMBARI-12026
>             Project: Ambari
>          Issue Type: Bug
>          Components: ambari-server
>    Affects Versions: 2.1.0
>            Reporter: Myroslav Papirkovskyy
>            Assignee: Myroslav Papirkovskyy
>            Priority: Blocker
>             Fix For: 2.1.0
>
>
> Ambari goes into deadlock during RU.
> Reason is config update which is not expected by design.
> Config locking strategy should be revisited.



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