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https://issues.apache.org/jira/browse/HBASE-5986?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13277516#comment-13277516
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Hadoop QA commented on HBASE-5986:
----------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12527760/5986-v2.txt
  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 hadoop23.  The patch compiles against the hadoop 0.23.x 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 32 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/1903//testReport/
Findbugs warnings: 
https://builds.apache.org/job/PreCommit-HBASE-Build/1903//artifact/trunk/patchprocess/newPatchFindbugsWarnings.html
Console output: 
https://builds.apache.org/job/PreCommit-HBASE-Build/1903//console

This message is automatically generated.
                
> Clients can see holes in the META table when regions are being split
> --------------------------------------------------------------------
>
>                 Key: HBASE-5986
>                 URL: https://issues.apache.org/jira/browse/HBASE-5986
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.92.1, 0.96.0, 0.94.1
>            Reporter: Enis Soztutar
>            Assignee: Enis Soztutar
>         Attachments: 5986-v2.txt, HBASE-5986-test_v1.patch
>
>
> We found this issue when running large scale ingestion tests for HBASE-5754. 
> The problem is that the .META. table updates are not atomic while splitting a 
> region. In SplitTransaction, there is a time lap between the marking the 
> parent offline, and adding of daughters to the META table. This can result in 
> clients using MetaScanner, of HTable.getStartEndKeys (used by the 
> TableInputFormat) missing regions which are made just offline, but the 
> daughters are not added yet. 
> This is also related to HBASE-4335. 

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