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Posted to dev@zookeeper.apache.org by "Flavio Paiva Junqueira (JIRA)" <ji...@apache.org> on 2008/06/12 16:14:45 UTC
[jira] Assigned: (ZOOKEEPER-2) Synchronization issues in QuorumPeer
and FastLeader election
[ https://issues.apache.org/jira/browse/ZOOKEEPER-2?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Flavio Paiva Junqueira reassigned ZOOKEEPER-2:
----------------------------------------------
Assignee: Flavio Paiva Junqueira
> Synchronization issues in QuorumPeer and FastLeader election
> ------------------------------------------------------------
>
> Key: ZOOKEEPER-2
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2
> Project: Zookeeper
> Issue Type: Bug
> Components: leaderElection
> Reporter: Benjamin Reed
> Assignee: Flavio Paiva Junqueira
>
> There are a couple of cases of member variables that need to be marked volatile or surrounded in a synchronization block. A couple of examples are:
> * QuorumPeer state should be synchronous
> * currentVote in QuorumPeer is marked volatile, but when it's members are often accessed individually as if they were in an atomic unit. Such code should be changed to get a reference to the currentVote and they access members through that reference.
> * It looks like logicalClock in FastLeaderElection should be volatile. It should either be fixed or commented to explain why it doesn't need to be.
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