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From "nkeywal (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-7390) Add extra test cases for assignement on the region server and fix the related issues
Date Wed, 19 Dec 2012 22:17:12 GMT

    [ https://issues.apache.org/jira/browse/HBASE-7390?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13536474#comment-13536474
] 

nkeywal commented on HBASE-7390:
--------------------------------

Yes, that's what we do. But we should never miss the final event, so it's a little bit strange.
But on master failover, when we iterate on the znodes, we ignore the one int the SPLIT state,
that may be the reason. I need to look at this as well, I tend to think we may have issues
around this part (master crash during a split).
                
> Add extra test cases for assignement on the region server and fix the related issues
> ------------------------------------------------------------------------------------
>
>                 Key: HBASE-7390
>                 URL: https://issues.apache.org/jira/browse/HBASE-7390
>             Project: HBase
>          Issue Type: Bug
>          Components: Region Assignment, regionserver
>    Affects Versions: 0.96.0
>            Reporter: nkeywal
>            Assignee: nkeywal
>             Fix For: 0.96.0
>
>         Attachments: 7390.v1.patch, 7390.v2.patch, 7390.v3.patch, assignment_zk_states.jpg
>
>
> We don't have a lot of tests on the region server itself.
> Here are some.
> Some of them are failing, feedback welcome.
> See as well the attached state diagram for the ZK nodes on assignment.

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