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https://issues.apache.org/jira/browse/HADOOP-11569?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14313770#comment-14313770
 ] 

Hadoop QA commented on HADOOP-11569:
------------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest 
attachment 
  
http://issues.apache.org/jira/secure/attachment/12697669/HADOOP-11569-001.patch
  against trunk revision b73956f.

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

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

      {color:red}-1 javac{color}.  The applied patch generated 1153 javac 
compiler warnings (more than the trunk's current 1151 warnings).

    {color:green}+1 javadoc{color}.  There were no new javadoc warning messages.

    {color:green}+1 eclipse:eclipse{color}.  The patch built with 
eclipse:eclipse.

    {color:red}-1 findbugs{color}.  The patch appears to introduce 2 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 core tests{color}.  The patch passed unit tests in 
hadoop-common-project/hadoop-common.

Test results: 
https://builds.apache.org/job/PreCommit-HADOOP-Build/5639//testReport/
Findbugs warnings: 
https://builds.apache.org/job/PreCommit-HADOOP-Build/5639//artifact/patchprocess/newPatchFindbugsWarningshadoop-common.html
Javac warnings: 
https://builds.apache.org/job/PreCommit-HADOOP-Build/5639//artifact/patchprocess/diffJavacWarnings.txt
Console output: 
https://builds.apache.org/job/PreCommit-HADOOP-Build/5639//console

This message is automatically generated.

> Provide Merge API for MapFile to merge multiple similar MapFiles to one 
> MapFile
> -------------------------------------------------------------------------------
>
>                 Key: HADOOP-11569
>                 URL: https://issues.apache.org/jira/browse/HADOOP-11569
>             Project: Hadoop Common
>          Issue Type: Improvement
>            Reporter: Vinayakumar B
>            Assignee: Vinayakumar B
>         Attachments: HADOOP-11569-001.patch
>
>
> If there are multiple similar MapFiles of the same keyClass and value 
> classes, then these can be merged together to One MapFile to allow search 
> easier.
> Provide an API  similar to {{SequenceFile#merge()}}.
> Merging will be easy with the fact that MapFiles are already sorted.



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