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From "ramkrishna.s.vasudevan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-5914) Bulk assign regions in the process of ServerShutdownHandler
Date Wed, 09 May 2012 17:07:50 GMT

    [ https://issues.apache.org/jira/browse/HBASE-5914?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13271600#comment-13271600
] 

ramkrishna.s.vasudevan commented on HBASE-5914:
-----------------------------------------------

I am +1 on this. But did not do any tests.
                
> Bulk assign regions in the process of ServerShutdownHandler
> -----------------------------------------------------------
>
>                 Key: HBASE-5914
>                 URL: https://issues.apache.org/jira/browse/HBASE-5914
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: chunhui shen
>            Assignee: chunhui shen
>             Fix For: 0.96.0
>
>         Attachments: HBASE-5914.patch, HBASE-5914v2.patch, HBASE-5914v3.patch
>
>
> In the process of ServerShutdownHandler, we currently assign regions singly.
> In the large cluster, one regionserver always carried many regions, this action is  quite
slow.
> What about using bulk assign regions like cluster start up.
> In current logic,  if we failed assigning many regions to one destination server, we
will wait unitl timeout, 
> however in the process of ServerShutdownHandler, we should retry it to another server.

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