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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 20:35:13 GMT

    [ https://issues.apache.org/jira/browse/HBASE-7390?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13536403#comment-13536403

nkeywal commented on HBASE-7390:

Seems to be ok ok imho.

For testCloseByMasterWithoutZNode, it fails because we update the znode state after doing
the work. So when we discover there is no znode, the close is done. 

It easy to fix by adding a test at the beginning of the close.
As a consequence:
- broken situation where we were calling a close without znode will now lead to an error
- we will be a little bit slower, as we will have another zk sync & read on the critical

If we're in line with what was done by Jimmy Xiang previously (i.e. checking carefully what
we're doing :-) ), we should do it.

> 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, 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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