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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-9204) An Offline SplitParent Region can be assigned breaking split references
Date Fri, 16 Aug 2013 20:53:48 GMT

    [ https://issues.apache.org/jira/browse/HBASE-9204?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13742590#comment-13742590
] 

Hudson commented on HBASE-9204:
-------------------------------

SUCCESS: Integrated in HBase-TRUNK-on-Hadoop-2.0.0 #681 (See [https://builds.apache.org/job/HBase-TRUNK-on-Hadoop-2.0.0/681/])
HBASE-9204 An Offline SplitParent Region can be assigned breaking split references (jxiang:
rev 1514747)
* /hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/AssignmentManager.java
* /hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/RegionStates.java
* /hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/util/ModifyRegionUtils.java
* /hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/master/handler/TestCreateTableHandler.java
* /hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestSplitTransactionOnCluster.java

                
> An Offline SplitParent Region can be assigned breaking split references
> -----------------------------------------------------------------------
>
>                 Key: HBASE-9204
>                 URL: https://issues.apache.org/jira/browse/HBASE-9204
>             Project: HBase
>          Issue Type: Bug
>          Components: Region Assignment
>    Affects Versions: 0.98.0, 0.95.1, 0.94.10
>            Reporter: Matteo Bertozzi
>            Assignee: Jimmy Xiang
>             Fix For: 0.98.0, 0.96.0
>
>         Attachments: 0.94-9204.patch, HBASE-9294-0.94-v0.patch, trunk-9204.patch, trunk-9204_v2.patch,
trunk-9204_v3.1.patch, trunk-9204_v3.patch
>
>
> An offline split parent region can be assigned by using 'assign' from shell.
> This may trigger a compaction on the split parent region that should be offline, breaking
the references of the two daughters.
> The easy way to test this is:
>  * disable compactions
>  * create a table and insert some row
>  * split
>  * shutdown the master (otherwise there's a state checked inside the AssignmentManager)
>  * start the master
>  * assign the region marked as OFFLINE => true, SPLIT => true (the compaction on
region startup will probably break the reference of the two  daughters)

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