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https://issues.apache.org/jira/browse/HADOOP-11966?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14543802#comment-14543802
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Hudson commented on HADOOP-11966:
---------------------------------

FAILURE: Integrated in Hadoop-Hdfs-trunk #2125 (See 
[https://builds.apache.org/job/Hadoop-Hdfs-trunk/2125/])
HADOOP-11966. Variable cygwin is undefined in hadoop-config.sh when executed 
through hadoop-daemon.sh. Contributed by Chris Nauroth. (cnauroth: rev 
93b770f7e778835a9dd76854b435c5250835d1a8)
* hadoop-common-project/hadoop-common/CHANGES.txt


> Variable cygwin is undefined in hadoop-config.sh when executed through 
> hadoop-daemon.sh.
> ----------------------------------------------------------------------------------------
>
>                 Key: HADOOP-11966
>                 URL: https://issues.apache.org/jira/browse/HADOOP-11966
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: scripts
>    Affects Versions: 2.7.0
>            Reporter: Chris Nauroth
>            Assignee: Chris Nauroth
>            Priority: Critical
>             Fix For: 2.7.1
>
>         Attachments: HADOOP-11966-branch-2.001.patch
>
>
> HADOOP-11464 reinstated support for running the bash scripts through Cygwin.  
> The logic involves setting a {{cygwin}} flag variable to indicate if the 
> script is executing through Cygwin.  The flag is set in all of the 
> interactive scripts: {{hadoop}}, {{hdfs}}, {{yarn}} and {{mapred}}.  The flag 
> is not set through hadoop-daemon.sh though.  This can cause an erroneous 
> overwrite of {{HADOOP_HOME}} and {{JAVA_LIBRARY_PATH}} inside 
> hadoop-config.sh.



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