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https://issues.apache.org/jira/browse/MAPREDUCE-4374?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13704251#comment-13704251
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Hadoop QA commented on MAPREDUCE-4374:
--------------------------------------
{color:green}+1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12591511/MAPREDUCE-4374-trunk.2.patch
against trunk revision .
{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: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-common-project/hadoop-common
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common.
{color:green}+1 contrib tests{color}. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/3843//testReport/
Console output:
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/3843//console
This message is automatically generated.
> Fix child task environment variable config and add support for Windows
> ----------------------------------------------------------------------
>
> Key: MAPREDUCE-4374
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4374
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: mrv2
> Affects Versions: 3.0.0, 1-win, 2.1.0-beta
> Reporter: Chuan Liu
> Assignee: Chuan Liu
> Priority: Minor
> Fix For: 1-win
>
> Attachments: MAPREDUCE-4374-branch-1-win-2.patch,
> MAPREDUCE-4374-branch-1-win.patch, MAPREDUCE-4374-trunk.2.patch,
> MAPREDUCE-4374-trunk.patch
>
>
> In HADOOP-2838, a new feature was introduced to set environment variables via
> the Hadoop config 'mapred.child.env' for child tasks. There are some further
> fixes and improvements around this feature, e.g. HADOOP-5981 were a bug fix;
> MAPREDUCE-478 broke the config into 'mapred.map.child.env' and
> 'mapred.reduce.child.env'. However the current implementation is still not
> complete. It does not match its documentation or original intend as I
> believe. Also, by using ‘:’ (colon) and ‘;’ (semicolon) in the configuration
> syntax, we will have problems using them on Windows because ‘:’ appears very
> often in Windows path as in “C:\”, and environment variables are used very
> often to hold path names. The Jira is created to fix the problem and provide
> support on Windows.
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