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https://issues.apache.org/jira/browse/HBASE-5991?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13510162#comment-13510162
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stack commented on HBASE-5991:
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Thanks for the jcommon pointer Alex. Studying it now....
Agree on avoiding multiple implementations. We're talking 0.96, the
singularity, and thinking if we are going to switch, this is the time to do it.
Need a good reason to make the change or as Jon Hsieh says, 3 or 4 good medium
size reasons... Talking about it at hackathon.
> Introduce sequential ZNode based read/write locks
> --------------------------------------------------
>
> Key: HBASE-5991
> URL: https://issues.apache.org/jira/browse/HBASE-5991
> Project: HBase
> Issue Type: Improvement
> Reporter: Alex Feinberg
> Assignee: Alex Feinberg
> Fix For: 0.89-fb
>
>
> This is a continuation of HBASE-5494:
> Currently table-level write locks have been implemented using non-sequential
> ZNodes as part of HBASE-5494 and committed to 89-fb branch. This issue is to
> track converting the table-level locks to sequential ZNodes and supporting
> read-write locks, as to solve the issue of preventing schema changes during
> region splits or merges.
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