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https://issues.apache.org/jira/browse/HBASE-20597?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16494171#comment-16494171
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Hudson commented on HBASE-20597:
--------------------------------
SUCCESS: Integrated in Jenkins build HBase-1.2-IT #1115 (See
[https://builds.apache.org/job/HBase-1.2-IT/1115/])
Revert "HBASE-20597 Use a lock to serialize access to a shared reference
(apurtell: rev 419ee99e0239e680b4cfeb5c4650a54a3a662452)
* (edit)
hbase-server/src/main/java/org/apache/hadoop/hbase/replication/HBaseReplicationEndpoint.java
HBASE-20597 Serialize access to a shared reference to ZooKeeperWatcher
(apurtell: rev 6594f2656bc23b33370106c94648ec1abb1f62e7)
* (edit)
hbase-server/src/main/java/org/apache/hadoop/hbase/replication/HBaseReplicationEndpoint.java
> Use a lock to serialize access to a shared reference to ZooKeeperWatcher in
> HBaseReplicationEndpoint
> ----------------------------------------------------------------------------------------------------
>
> Key: HBASE-20597
> URL: https://issues.apache.org/jira/browse/HBASE-20597
> Project: HBase
> Issue Type: Bug
> Components: Replication
> Affects Versions: 1.3.2, 1.4.4
> Reporter: Andrew Purtell
> Assignee: Andrew Purtell
> Priority: Minor
> Fix For: 3.0.0, 2.1.0, 1.5.0, 1.3.3, 2.0.1, 1.4.5
>
> Attachments: HBASE-20597-branch-1.addendum-v2.0.patch,
> HBASE-20597-branch-1.patch, HBASE-20597.addendum.0.patch, HBASE-20597.patch
>
>
> The code that closes down a ZKW that fails to initialize when attempting to
> connect to the remote cluster is not MT safe and can in theory leak
> ZooKeeperWatcher instances. The allocation of a new ZKW and store to the
> reference is not atomic. Might have concurrent allocations with only one
> winning store, leading to leaked ZKW instances.
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