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From "Jonathan Hurley" <jhur...@hortonworks.com>
Subject Review Request 38782: RU cluster in hung state while trying to perform downgrade
Date Sat, 26 Sep 2015 00:29:49 GMT

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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/38782/
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Review request for Ambari, Jayush Luniya and Mahadev Konar.


Bugs: AMBARI-123245
    https://issues.apache.org/jira/browse/AMBARI-123245


Repository: ambari


Description
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Upgrade/Downgrade still has JPA concurrency problems. It seems like the use of the Parallel
thread pool from multiple locations causes ConcurerencyManager in JPA to have problems. For
now, leaving the use of Parallel in getStagesInProgress since it seems that this is stable.


Deprecated Parallel until we can figure out what's really going wrong with it.


Diffs
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  ambari-server/src/main/java/org/apache/ambari/server/actionmanager/ActionDBAccessorImpl.java
8768590 
  ambari-server/src/main/java/org/apache/ambari/server/actionmanager/Request.java 26447e6

  ambari-server/src/main/java/org/apache/ambari/server/utils/Parallel.java 9ca039b 

Diff: https://reviews.apache.org/r/38782/diff/


Testing
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Full upgrade and downgrade 2x.


Thanks,

Jonathan Hurley


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