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https://issues.apache.org/jira/browse/HBASE-6228?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13402167#comment-13402167
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Hadoop QA commented on HBASE-6228:
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-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12533642/HBASE-6228v4.patch
against trunk revision .
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 3 new or modified tests.
+1 hadoop2.0. The patch compiles against the hadoop 2.0 profile.
+1 javadoc. The javadoc tool did not generate any warning messages.
+1 javac. The applied patch does not increase the total number of javac
compiler warnings.
-1 findbugs. The patch appears to introduce 6 new Findbugs (version 1.3.9)
warnings.
+1 release audit. The applied patch does not increase the total number of
release audit warnings.
+1 core tests. The patch passed unit tests in .
Test results:
https://builds.apache.org/job/PreCommit-HBASE-Build/2273//testReport/
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/2273//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-server.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/2273//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-common.html
Console output:
https://builds.apache.org/job/PreCommit-HBASE-Build/2273//console
This message is automatically generated.
> Fixup daughters twice cause daughter region assigned twice
> -----------------------------------------------------------
>
> Key: HBASE-6228
> URL: https://issues.apache.org/jira/browse/HBASE-6228
> Project: HBase
> Issue Type: Bug
> Components: master
> Reporter: chunhui shen
> Assignee: chunhui shen
> Fix For: 0.96.0
>
> Attachments: HBASE-6228.patch, HBASE-6228v2.patch,
> HBASE-6228v2.patch, HBASE-6228v3.patch, HBASE-6228v4.patch
>
>
> First, how fixup daughters twice happen?
> 1.we will fixupDaughters at the last of HMaster#finishInitialization
> 2.ServerShutdownHandler will fixupDaughters when reassigning region through
> ServerShutdownHandler#processDeadRegion
> When fixupDaughters, we will added daughters to .META., but it coudn't
> prevent the above case, because FindDaughterVisitor.
> The detail is as the following:
> Suppose region A is a splitted parent region, and its daughter region B is
> missing
> 1.First, ServerShutdownHander thread fixup daughter, so add daughter region B
> to .META. with serverName=null, and assign the daughter.
> 2.Then, Master's initialization thread will also find the daughter region B
> is missing and assign it. It is because FindDaughterVisitor consider daughter
> is missing if its serverName=null
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