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https://issues.apache.org/jira/browse/MAPREDUCE-4374?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13705209#comment-13705209
]
Hudson commented on MAPREDUCE-4374:
-----------------------------------
Integrated in Hadoop-trunk-Commit #4063 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/4063/])
MAPREDUCE-4374. Fix child task environment variable config and add support
for Windows. Contributed by Chuan Liu. (Revision 1502046)
Result = SUCCESS
cnauroth :
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1502046
Files :
*
/hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/Shell.java
* /hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt
*
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapred/JobConf.java
*
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/resources/mapred-default.xml
*
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/test/java/org/apache/hadoop/mapred/TestMiniMRChildTask.java
*
/hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/util/Apps.java
> 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.3.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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