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From "Alex Feinberg (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-5991) Introduce sequential ZNode based read/write locks
Date Sun, 08 Jul 2012 02:09:34 GMT

    [ https://issues.apache.org/jira/browse/HBASE-5991?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13408832#comment-13408832
] 

Alex Feinberg commented on HBASE-5991:
--------------------------------------

Hi Ted,

Sorry, I haven't followed up on this -- I have been busy.

Yes, I still intend to do work on this. Unless you've started working on it, I can finish
it: I've already started and have a design in mind.
                
> 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
>
> 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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