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https://issues.apache.org/jira/browse/PHOENIX-1403?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14197120#comment-14197120
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Hudson commented on PHOENIX-1403:
---------------------------------
FAILURE: Integrated in Phoenix-master #470 (See
[https://builds.apache.org/job/Phoenix-master/470/])
PHOENIX-1403 Correct synchronization in ConnectionQueryServicesImpl.init
(greid: rev 309b1f1c7698dbac80ffc662a72b5557b8df5265)
*
phoenix-core/src/main/java/org/apache/phoenix/query/ConnectionQueryServicesImpl.java
> Race condition can cause ConnectionQueryServicesImpl to be re-initialized
> -------------------------------------------------------------------------
>
> Key: PHOENIX-1403
> URL: https://issues.apache.org/jira/browse/PHOENIX-1403
> Project: Phoenix
> Issue Type: Bug
> Affects Versions: 4.2, 3.2
> Reporter: Gabriel Reid
> Assignee: Gabriel Reid
> Fix For: 5.0.0, 4.3, 3.3
>
> Attachments: PHOENIX-1403.patch
>
>
> If there are multiple threads opening connections to the same Phoenix (HBase)
> instance concurrently, the same ConnectionQueryServicesImpl instance can be
> initialized multiple times. This can eventually cause some resources to leak,
> such as ZK connections.
> There is a synchronized block to prevent this, but PHOENIX-966 inadvertently
> disabled the function of the synchronized block.
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