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https://issues.apache.org/jira/browse/ZOOKEEPER-645?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jaakko Laine updated ZOOKEEPER-645:
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Attachment: 645-fix-findPrefixInChildren.patch
Attached patch addresses issue 2 above.
> Bug in WriteLock recipe implementation?
> ---------------------------------------
>
> Key: ZOOKEEPER-645
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-645
> Project: Zookeeper
> Issue Type: Bug
> Affects Versions: 3.2.2
> Environment: 3.2.2 java 1.6.0_12
> Reporter: Jaakko Laine
> Priority: Minor
> Attachments: 645-fix-findPrefixInChildren.patch
>
>
> Not sure, but there seem to be two issues in the example WriteLock:
> (1) ZNodeName is sorted according to session ID first, and then according to
> znode sequence number. This might cause starvation as lower session IDs
> always get priority. WriteLock is not thread-safe in the first place, so
> having session ID involved in compare operation does not seem to make sense.
> (2) if findPrefixInChildren finds previous ID, it should add dir in front of
> the ID
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