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https://issues.apache.org/jira/browse/HBASE-2508?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ryan rawson resolved HBASE-2508.
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Resolution: Invalid
as per how the JMM does things and the described locking and lack of evidence
to why what we have now is bad, I am closing this. It's really not an issue.
> Use AtomicInteger for lockIdGenerator in HRegion
> ------------------------------------------------
>
> Key: HBASE-2508
> URL: https://issues.apache.org/jira/browse/HBASE-2508
> Project: Hadoop HBase
> Issue Type: Improvement
> Components: regionserver
> Affects Versions: 0.20.3
> Reporter: Ted Yu
>
> Currently lockIdGenerator is an int. In obtainRowLock(), retry is needed in
> case of lockId collisions.
> We can declare lockIdGenerator as AtomicInteger and use incrementAndGet() to
> get the next lock Id.
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