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https://issues.apache.org/jira/browse/ZOOKEEPER-78?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12615618#action_12615618
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james strachan commented on ZOOKEEPER-78:
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Great catch Benjamin! I've a working patch using your algorithm; am using
x-sessionId-sequenceNumber and its working a treat (though its a tad hard to
force ZK to fail mid-create :).
Am working on some unit tests to try out the server stopping/starting which
I'll attach shortly once they're working a bit better...
> added a high level protocol/feature - for easy Leader Election or exclusive
> Write Lock creation
> -----------------------------------------------------------------------------------------------
>
> Key: ZOOKEEPER-78
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-78
> Project: Zookeeper
> Issue Type: New Feature
> Components: java client
> Affects Versions: 3.0.0
> Reporter: james strachan
> Assignee: james strachan
> Attachments: writeLock_protocol_version3.patch
>
>
> Here's a patch which adds a little WriteLock helper class for performing
> leader elections or creating exclusive locks in some directory znode. Note
> its an early cut; am sure we can improve it over time. The aim is to avoid
> folks having to use the low level ZK stuff but provide a simpler high level
> abstraction.
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