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https://issues.apache.org/jira/browse/HBASE-13709?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14549728#comment-14549728
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Hadoop QA commented on HBASE-13709:
-----------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest 
attachment 
  http://issues.apache.org/jira/secure/attachment/12733687/hbase-13709_v1.patch
  against master branch at commit 92e66ef5222391d106bc8adb7afe7d96a7dafac2.
  ATTACHMENT ID: 12733687

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

    {color:green}+1 tests included{color}.  The patch appears to include 15 new 
or modified tests.

    {color:green}+1 hadoop versions{color}. The patch compiles with all 
supported hadoop versions (2.4.1 2.5.2 2.6.0)

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

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

    {color:red}-1 javadoc{color}.  The javadoc tool appears to have generated 1 
warning messages.

                {color:red}-1 checkstyle{color}.  The applied patch generated 
1901 checkstyle errors (more than the master's current 1898 errors).

    {color:green}+1 findbugs{color}.  The patch does not introduce any  new 
Findbugs (version 2.0.3) 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:
     

Test results: 
https://builds.apache.org/job/PreCommit-HBASE-Build/14081//testReport/
Release Findbugs (version 2.0.3)        warnings: 
https://builds.apache.org/job/PreCommit-HBASE-Build/14081//artifact/patchprocess/newFindbugsWarnings.html
Checkstyle Errors: 
https://builds.apache.org/job/PreCommit-HBASE-Build/14081//artifact/patchprocess/checkstyle-aggregate.html

                Javadoc warnings: 
https://builds.apache.org/job/PreCommit-HBASE-Build/14081//artifact/patchprocess/patchJavadocWarnings.txt
Console output: 
https://builds.apache.org/job/PreCommit-HBASE-Build/14081//console

This message is automatically generated.

> Updates to meta table server columns may be eclipsed
> ----------------------------------------------------
>
>                 Key: HBASE-13709
>                 URL: https://issues.apache.org/jira/browse/HBASE-13709
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Enis Soztutar
>            Assignee: Enis Soztutar
>             Fix For: 2.0.0, 1.0.2, 1.2.0, 1.1.1
>
>         Attachments: hbase-13709_v1.patch
>
>
> HBASE-11536 fixes a case where on a very rare occasion, the meta updates may 
> be processed out of order. The fix is to use the RS's timestamp for the 
> server column in meta update, but that actually opens up a vulnerability for 
> clock skew (see the discussions in the jira). 
> For the region replicas case, we can reproduce a problem where the server 
> name field is eclipsed by the masters earlier update because the RS is 
> lagging behind. However, this is not specific to replicas, but occurs more 
> frequently with it. 
> One option that was discussed was to send the master's ts with open region 
> RPC and use it. 



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