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MapReduce >> mail # user >> cygwin hadoop permissions problems

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cygwin hadoop permissions problems
I have to use cygwin on windows for my hadoop env. I get this problem running this sample mapred command:
 bin/hadoop jar hadoop-examples-1.1.1.jar grep input output 'dfs[a-z.]+'
Failed to set permissions of path: \tmp\hadoop-cyg_server\mapred\local\taskTracker\cyg_server to 0700
I have this entry in my hdfs.site:
and I still am getting the error.

 I also applied a patch that was supposed to fix this problem, and refered to it in my core-site,xml like this:
        <description>Enables patch for issue HADOOP-7682 on Windows</description>

but the error persists.

 Any thoughts?
Thank you!