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From "Enis Soztutar (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-7976) Rest of master operations (move, assign, unassign, offline region) should also acquire table locks
Date Sat, 02 Mar 2013 03:21:13 GMT

    [ https://issues.apache.org/jira/browse/HBASE-7976?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13591244#comment-13591244
] 

Enis Soztutar commented on HBASE-7976:
--------------------------------------

bq. So here again, is it not possible to lock just the concerned region instead of the entire
table?
As it stands, there is no such thing as per-region locks, only table-level locks. If an admin
wants to move a region, we may want to exclude concurrent table operations (alter table).
Pls see https://issues.apache.org/jira/secure/attachment/12571721/HBaseTableLocks.pdf
                
> Rest of master operations (move, assign, unassign, offline region) should also acquire
table locks
> --------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-7976
>                 URL: https://issues.apache.org/jira/browse/HBASE-7976
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Enis Soztutar
>            Assignee: Enis Soztutar
>             Fix For: 0.95.0, 0.98.0
>
>
> HBASE-7305 adds table locks to the create/delete/enable/disable/modify table and column
operations. We should also acquire the table lock in region admin operations, move, assign,
unassign, etc. 

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