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https://issues.apache.org/jira/browse/HBASE-15073?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15086594#comment-15086594
 ] 

Hadoop QA commented on HBASE-15073:
-----------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest 
attachment 
  http://issues.apache.org/jira/secure/attachment/12780833/15073-v5.txt
  against master branch at commit a9b671b31f07ade8968b42956aa60c722032dcc8.
  ATTACHMENT ID: 12780833

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

    {color:green}+1 tests included{color}.  The patch appears to include 6 new 
or modified tests.

    {color:green}+1 hadoop versions{color}. The patch compiles with all 
supported hadoop versions (2.4.0 2.4.1 2.5.0 2.5.1 2.5.2 2.6.0 2.6.1 2.7.0 
2.7.1)

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

                {color:red}-1 checkstyle{color}.  The applied patch generated 
new checkstyle errors. Check build console for list of new 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 post-site goal succeeds with this 
patch.

    {color:red}-1 core tests{color}.  The patch failed these unit tests:
     

    {color:green}+1 zombies{color}. No zombie tests found running at the end of 
the build.

Test results: 
https://builds.apache.org/job/PreCommit-HBASE-Build/17152//testReport/
Release Findbugs (version 2.0.3)        warnings: 
https://builds.apache.org/job/PreCommit-HBASE-Build/17152//artifact/patchprocess/newFindbugsWarnings.html
Checkstyle Errors: 
https://builds.apache.org/job/PreCommit-HBASE-Build/17152//artifact/patchprocess/checkstyle-aggregate.html

                Console output: 
https://builds.apache.org/job/PreCommit-HBASE-Build/17152//console

This message is automatically generated.

> Finer grained control over normalization actions for RegionNormalizer
> ---------------------------------------------------------------------
>
>                 Key: HBASE-15073
>                 URL: https://issues.apache.org/jira/browse/HBASE-15073
>             Project: HBase
>          Issue Type: Task
>          Components: regionserver
>            Reporter: Ted Yu
>            Assignee: Ted Yu
>             Fix For: 2.0.0, 1.2.0, 1.3.0
>
>         Attachments: 15073-v1.txt, 15073-v2.txt, 15073-v2.txt, 15073-v3.txt, 
> 15073-v4.txt, 15073-v5.txt
>
>
> Currently both region split and merge actions are carried out during 
> normalization for underlying table.
> However, for certain use case(s), it would be desirable to perform only one 
> type of action.
> There is one boolean flag, keyed by NORMALIZATION_ENABLED_KEY, per table that 
> enables normalization.
> To provide finer grained control, we have several options:
> 1. introduce another per table flag to indicate which type(s) of actions are 
> allowed ("N" for disabled, "S" for split only, "M" for merge only and "MS" 
> for both split and merge)
> 2. introduce another global flag to indicate which type(s) of actions are 
> allowed
> 3. modify the meaning of existing flag keyed by NORMALIZATION_ENABLED_KEY so 
> that it indicates type(s) of actions



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