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From "Ping (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-9740) A corrupt HFile could cause endless attempts to assign the region without a chance of success
Date Thu, 23 Jan 2014 07:27:25 GMT

    [ https://issues.apache.org/jira/browse/HBASE-9740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13879581#comment-13879581
] 

Ping commented on HBASE-9740:
-----------------------------

Yes, I just checked the trunk, it goes somehow same way, thanks for your comment Jimmy.
Would you plan to merge this feature to branch 0.94?

> A corrupt HFile could cause endless attempts to assign the region without a chance of
success
> ---------------------------------------------------------------------------------------------
>
>                 Key: HBASE-9740
>                 URL: https://issues.apache.org/jira/browse/HBASE-9740
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.94.16
>            Reporter: Aditya Kishore
>            Assignee: Aditya Kishore
>         Attachments: patch-9740_0.94.txt
>
>
> As described in HBASE-9737, a corrupt HFile in a region could lead to an assignment storm
in the cluster since the Master will keep trying to assign the region to each region server
one after another and obviously none will succeed.
> The region server, upon detecting such a scenario should mark the region as "RS_ZK_REGION_FAILED_ERROR"
(or something to the effect) in the Zookeeper which should indicate the Master to stop assigning
the region until the error has been resolved (via an HBase shell command, probably "assign"?)



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