Remove need for taskcontroller.cfg
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Key: MAPREDUCE-2158
URL: https://issues.apache.org/jira/browse/MAPREDUCE-2158
Project: Hadoop Map/Reduce
Issue Type: Improvement
Components: task-controller
Affects Versions: 0.22.0
Reporter: Aaron T. Myers
Assignee: Aaron T. Myers
The taskcontroller.cfg configuration file seems unnecessary. It's parsed by the
task-controller binary, and the path to it is baked into that binary at
compile-time. It contains only 3 values, none of which are secret, all of which
are also specified in either core-site.xml or mapred-site.xml. It seems like
getting rid of taskcontroller.cfg will simplify configuration, and have no
impact on the security of the system
I suggest we either:
# Pass these values as arguments to task-controller when we execute it.
# Use xerces to enable the task-controller to parse *-site.xml.
Of these two options, I think option 1 seems the cleanest/easiest. Either would
be backward-compatible with existing configurations.
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