mapred output files and directories should be created as the job submitter, not
tasktracker or jobtracker
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Key: HADOOP-2915
URL: https://issues.apache.org/jira/browse/HADOOP-2915
Project: Hadoop Core
Issue Type: Bug
Components: mapred
Affects Versions: 0.16.0
Reporter: Tsz Wo (Nicholas), SZE
Assignee: Tsz Wo (Nicholas), SZE
Quoted from an email sending to core-dev by Andy Li:
{quote}
For example, assuming I have installed Hadoop with an account 'hadoop' and I am
going to run my program with user account 'test'. I have created an input
folder as /user/test/input/ with user 'test' and the permission is set to 0775.
/user/test/input <dir> 2008-02-27 01:20 rwxr-xr-x test
hadoop
When I run the MapReduce code, the output I specified will be set to user
'hadoop' instead of 'test'.
/bin/hadoop jar /tmp/test_perm.jar -m 57 -r 3 "/user/test/input/l"
"/user/test/output/"
The directory "/user/test/output/" will have the following permission and
user:group.
/user/test/output <dir> 2008-02-27 03:53 rwxr-xr-x hadoop
hadoop
{quote}
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