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From "Jimmy Xiang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-9514) Prevent region from assigning before log splitting is done
Date Fri, 27 Sep 2013 19:06:04 GMT

    [ https://issues.apache.org/jira/browse/HBASE-9514?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13780268#comment-13780268

Jimmy Xiang commented on HBASE-9514:

I may dump some cluster info periodically if possible.
> Prevent region from assigning before log splitting is done
> ----------------------------------------------------------
>                 Key: HBASE-9514
>                 URL: https://issues.apache.org/jira/browse/HBASE-9514
>             Project: HBase
>          Issue Type: Bug
>          Components: Region Assignment
>            Reporter: Jimmy Xiang
>            Assignee: Jimmy Xiang
>            Priority: Blocker
>             Fix For: 0.96.0
>         Attachments: trunk-9514_v1.patch, trunk-9514_v2.patch, trunk-9514_v3.patch, trunk-9514_v5.patch
> If a region is assigned before log splitting is done by the server shutdown handler,
the edits belonging to this region in the hlogs of the dead server will be lost.
> Generally this is not an issue if users don't assign/unassign a region from hbase shell
or via hbase admin. These commands are marked for experts only in the hbase shell help too.
 However, chaos monkey doesn't care.
> If we can prevent from assigning such regions in a bad time, it would make things a little

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