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From "Enis Soztutar (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-7305) ZK based Read/Write locks for table operations
Date Wed, 30 Jan 2013 21:53:14 GMT

    [ https://issues.apache.org/jira/browse/HBASE-7305?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13566941#comment-13566941
] 

Enis Soztutar commented on HBASE-7305:
--------------------------------------

I would like to get this in sooneer rather than later. This basically prevents table operations
from stepping into each others toes. I've tested this without any problems so far. Any interest?
                
> ZK based Read/Write locks for table operations
> ----------------------------------------------
>
>                 Key: HBASE-7305
>                 URL: https://issues.apache.org/jira/browse/HBASE-7305
>             Project: HBase
>          Issue Type: Bug
>          Components: Client, master, Zookeeper
>            Reporter: Enis Soztutar
>            Assignee: Enis Soztutar
>             Fix For: 0.96.0
>
>         Attachments: 7305_v10.patch, hbase-7305_v0.patch, hbase-7305_v1-based-on-curator.patch,
hbase-7305_v2.patch, hbase-7305_v4.patch, hbase-7305_v9.patch
>
>
> This has started as forward porting of HBASE-5494 and HBASE-5991 from the 89-fb branch
to trunk, but diverged enough to have it's own issue. 
> The idea is to implement a zk based read/write lock per table. Master initiated operations
should get the write lock, and region operations (region split, moving, balance?, etc) acquire
a shared read lock. 

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