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https://issues.apache.org/jira/browse/HBASE-10867?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13955577#comment-13955577
 ] 

Hadoop QA commented on HBASE-10867:
-----------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest 
attachment 
  http://issues.apache.org/jira/secure/attachment/12637872/10867-v2.txt
  against trunk revision .
  ATTACHMENT ID: 12637872

    {color:green}+1 @author{color}.  The patch does not contain any @author 
tags.

    {color:green}+1 tests included{color}.  The patch appears to include 3 new 
or modified tests.

    {color:green}+1 javadoc{color}.  The javadoc tool did not generate any 
warning messages.

    {color:green}+1 javac{color}.  The applied patch does not increase the 
total number of javac compiler warnings.

    {color:green}+1 findbugs{color}.  The patch does not introduce any new 
Findbugs (version 1.3.9) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase 
the total number of release audit warnings.

    {color:green}+1 lineLengths{color}.  The patch does not introduce lines 
longer than 100

  {color:green}+1 site{color}.  The mvn site goal succeeds with this patch.

     {color:red}-1 core tests{color}.  The patch failed these unit tests:
                       
org.apache.hadoop.hbase.replication.TestReplicationSyncUpTool

Test results: 
https://builds.apache.org/job/PreCommit-HBASE-Build/9141//testReport/
Findbugs warnings: 
https://builds.apache.org/job/PreCommit-HBASE-Build/9141//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop2-compat.html
Findbugs warnings: 
https://builds.apache.org/job/PreCommit-HBASE-Build/9141//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-prefix-tree.html
Findbugs warnings: 
https://builds.apache.org/job/PreCommit-HBASE-Build/9141//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-client.html
Findbugs warnings: 
https://builds.apache.org/job/PreCommit-HBASE-Build/9141//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-common.html
Findbugs warnings: 
https://builds.apache.org/job/PreCommit-HBASE-Build/9141//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-protocol.html
Findbugs warnings: 
https://builds.apache.org/job/PreCommit-HBASE-Build/9141//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-server.html
Findbugs warnings: 
https://builds.apache.org/job/PreCommit-HBASE-Build/9141//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-examples.html
Findbugs warnings: 
https://builds.apache.org/job/PreCommit-HBASE-Build/9141//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-thrift.html
Findbugs warnings: 
https://builds.apache.org/job/PreCommit-HBASE-Build/9141//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop-compat.html
Console output: 
https://builds.apache.org/job/PreCommit-HBASE-Build/9141//console

This message is automatically generated.

> TestRegionPlacement#testRegionPlacement occasionally fails
> ----------------------------------------------------------
>
>                 Key: HBASE-10867
>                 URL: https://issues.apache.org/jira/browse/HBASE-10867
>             Project: HBase
>          Issue Type: Test
>            Reporter: Ted Yu
>            Assignee: Ted Yu
>            Priority: Minor
>         Attachments: 10867-v1.txt, 10867-v2.txt
>
>
> From 
> https://builds.apache.org/job/HBase-TRUNK/5047/testReport/org.apache.hadoop.hbase.master/TestRegionPlacement/testRegionPlacement/
>  :
> {code}
> java.lang.ArrayIndexOutOfBoundsException: 10
>       at 
> java.util.concurrent.CopyOnWriteArrayList.get(CopyOnWriteArrayList.java:368)
>       at 
> java.util.concurrent.CopyOnWriteArrayList.get(CopyOnWriteArrayList.java:377)
>       at 
> org.apache.hadoop.hbase.LocalHBaseCluster.getRegionServer(LocalHBaseCluster.java:224)
>       at 
> org.apache.hadoop.hbase.MiniHBaseCluster.getRegionServer(MiniHBaseCluster.java:609)
>       at 
> org.apache.hadoop.hbase.master.TestRegionPlacement.killRandomServerAndVerifyAssignment(TestRegionPlacement.java:303)
>       at 
> org.apache.hadoop.hbase.master.TestRegionPlacement.testRegionPlacement(TestRegionPlacement.java:270)
> {code}
> In the setup:
> {code}
>     TEST_UTIL.startMiniCluster(SLAVES);
> {code}
> where SLAVES is 10.
> So when 10 was used in 
> TEST_UTIL.getHBaseCluster().getRegionServer(killIndex), we would get 
> ArrayIndexOutOfBoundsException.



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