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https://issues.apache.org/jira/browse/ZOOKEEPER-117?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Patrick Hunt updated ZOOKEEPER-117:
-----------------------------------
Status: Open (was: Patch Available)
There is a potential race condition with this code:
1) say leader shutdown is called
2) shutdown will call cnxAcceptor.halt()
3) acceptor is currently blocked on accept (for up to 1 sec)
4) shutdown method completes, including shutting down entire followers set
(followerhandlers)
5) accept call in acceptor returns true (socket != null)
6) acceptor now adds followerhandler to followers set
> threading issues in Leader election
> -----------------------------------
>
> Key: ZOOKEEPER-117
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-117
> Project: Zookeeper
> Issue Type: Bug
> Components: server
> Reporter: Patrick Hunt
> Assignee: Flavio Paiva Junqueira
> Attachments: ZOOKEEPER-117.patch
>
>
> Leader.lead() creates a new thread that can never terminate (short of
> restarting vm)
> naked notifyall in lead() method - what is the condition variable? Best if
> set inside the sync block
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