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From "Michael K. Edwards (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ZOOKEEPER-2488) Unsynchronized access to shuttingDownLE in QuorumPeer
Date Mon, 26 Nov 2018 07:54:00 GMT

    [ https://issues.apache.org/jira/browse/ZOOKEEPER-2488?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16698585#comment-16698585
] 

Michael K. Edwards commented on ZOOKEEPER-2488:
-----------------------------------------------

I pulled that fix out as a separate PR (#724).

> Unsynchronized access to shuttingDownLE in QuorumPeer
> -----------------------------------------------------
>
>                 Key: ZOOKEEPER-2488
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2488
>             Project: ZooKeeper
>          Issue Type: Bug
>          Components: server
>    Affects Versions: 3.5.2
>            Reporter: Michael Han
>            Assignee: gaoshu
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 3.6.0, 3.5.5
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> Access to shuttingDownLE in QuorumPeer is not synchronized here:
> https://github.com/apache/zookeeper/blob/3c37184e83a3e68b73544cebccf9388eea26f523/src/java/main/org/apache/zookeeper/server/quorum/QuorumPeer.java#L1066
> https://github.com/apache/zookeeper/blob/3c37184e83a3e68b73544cebccf9388eea26f523/src/java/main/org/
> The access should be synchronized as the same variable might be accessed 
> in QuormPeer::restartLeaderElection, which is synchronized.



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