[jira] [Commented] (MAPREDUCE-4791) Javadoc for KeyValueTextInputFormat should include default separator and how to change it

["Hadoop QA (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/MAPREDUCE-4791?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13866448#comment-13866448 ] 

Hadoop QA commented on MAPREDUCE-4791:
--------------------------------------

{color:green}+1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12622132/MAPREDUCE-4791.patch
  against trunk revision .

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

    {color:green}+0 tests included{color}.  The patch appears to be a documentation patch that doesn't require tests.

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

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

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

    {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 core tests{color}.  The patch passed unit tests in hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core.

    {color:green}+1 contrib tests{color}.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/4309//testReport/
Console output: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/4309//console

This message is automatically generated.

> Javadoc for KeyValueTextInputFormat should include default separator and how to change it
> -----------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-4791
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4791
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: documentation
>    Affects Versions: 1.1.0, 2.2.0
>            Reporter: Matt Lavin
>            Assignee: Akira AJISAKA
>            Priority: Minor
>              Labels: newbie
>         Attachments: MAPREDUCE-4791.patch
>
>   Original Estimate: 1h
>  Remaining Estimate: 1h
>
> The javadoc for KeyValueTextInputFormat says "Each line is divided into key and value parts by a separator byte" but it doesn't say what the separator byte is or how to change it.
> After some exploration I noticed that the default is the Tab character and that the value can be changed by the JobConf value "key.value.separator.in.input.line"



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