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https://issues.apache.org/jira/browse/ZOOKEEPER-1405?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13223181#comment-13223181
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Rakesh R commented on ZOOKEEPER-1405:
-------------------------------------
Hi Robert,
Please go through 'ZOOKEEPER-1209', few problems which I have observed in the
recipe usage. Hope this will help in identifying more usecases and help to
strengthen our recipes .
> leader election recipe sample code - dispatchEvent invocations can get out of
> order
> -----------------------------------------------------------------------------------
>
> Key: ZOOKEEPER-1405
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-1405
> Project: ZooKeeper
> Issue Type: Bug
> Components: recipes
> Affects Versions: 3.4.3
> Reporter: Robert Varga
>
> Since the process method is not synchronized in
> org.apache.zookeeper.recipes.election.LeaderElectionSupport, therefore there
> is a race condition where events coming in from the watch may overtake the
> events dispatched during the start method.
> A solution to ensure that events dispatched during the start method are
> handled before any watch-based events is to make the process method
> synchronized.
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