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From "Liyin Tang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-5373) Table level lock to prevent the race of multiple table level operation
Date Thu, 03 May 2012 18:32:49 GMT

    [ https://issues.apache.org/jira/browse/HBASE-5373?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13267667#comment-13267667

Liyin Tang commented on HBASE-5373:

Sure. I am glad that Alex is working this jira right now and I will help on the code-review.
> Table level lock to prevent the race of multiple table level operation
> ----------------------------------------------------------------------
>                 Key: HBASE-5373
>                 URL: https://issues.apache.org/jira/browse/HBASE-5373
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Liyin Tang
>            Assignee: Liyin Tang
> A table level lock can guarantee that only one table operation would happen at one time
for each table. The master should require and release these table locks correctly during the
failover time. One proposal is to keep track of the lock and its corresponding operation in
the zookeeper. If there is a master failover, the secondary should have a way to check whether
these operations are succeeded nor not before releasing the lock.

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