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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-8500) RollingRestart utility at regionserver level
Date Tue, 07 May 2013 04:35:16 GMT

    [ https://issues.apache.org/jira/browse/HBASE-8500?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13650506#comment-13650506
] 

stack commented on HBASE-8500:
------------------------------

Does this help [~rshroff]: http://hbase.apache.org/book.html#decommission
                
> RollingRestart utility at regionserver level
> --------------------------------------------
>
>                 Key: HBASE-8500
>                 URL: https://issues.apache.org/jira/browse/HBASE-8500
>             Project: HBase
>          Issue Type: Bug
>          Components: master
>    Affects Versions: 0.89-fb
>            Reporter: Rishit Shroff
>            Assignee: Rishit Shroff
>            Priority: Minor
>
> With the option of blacklisting a region server from getting assigned new regions by
the master, we need to have a utility which encapsulates this and uses it for rolling restart
of a hbase cluster. The JIRA is to create a utility which restarts a single region server
by:
> 1. blacklisting the region server
> 2. moving all the regions one by one
> 3. restart the region server process
> 4. moving all the regions back
> 5. removing the region server from blacklist
> Along with this, the utility should also be able to estimate the total outage observed
from client perspective.

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