[MAPREDUCE-4810] Add admin command options for ApplicationMaster

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.0.2-alpha, 0.23.4
• Fix Version/s: 2.0.3-alpha, 0.23.6
• Component/s: applicationmaster
• Hadoop Flags: Reviewed
• Assignee: Haifeng Chen
• Reporter: Jason Darrell Lowe
• Created: 19/Nov/12 22:31
• Updated: 15/Feb/13 13:09
• Resolved: 09/Jan/13 06:34

Description

It would be nice if the MR ApplicationMaster had the notion of admin options in addition to the existing user options much like we have for map and reduce tasks, e.g.: mapreduce.admin.map.child.java.opts vs. mapreduce.map.java.opts. This allows site-wide configuration options for MR AMs but still allows a user to easily override the heap size of the AM without worrying about dropping other admin-specified options.