[jira] [Commented] (HBASE-5991) Introduce sequential ZNode based read/write locks

["Matteo Bertozzi (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-5991?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13492570#comment-13492570 ] 

Matteo Bertozzi commented on HBASE-5991:
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Hey [~afeinberg], what is the status of this patch?
expecially in relation to HBASE-5494 (prevent multiple table level operation)
In HBASE-5494 all the master methods are synchronous but in trunk createTable(), deleteTable() & co are asynchronous... any thoughts on how/where to handle the unlock? 

                
> 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
>
> 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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