[MAPREDUCE-3161] Improve javadoc and fix some typos in MR2 code

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 0.23.0
• Fix Version/s: 0.23.0
• Component/s: mrv2
• Hadoop Flags: Reviewed
• Assignee: Todd Lipcon
• Reporter: Todd Lipcon
• Created: 10/Oct/11 22:47
• Updated: 15/Nov/11 00:48
• Resolved: 11/Oct/11 04:47

Description

Just some simple cleanup, documentation, typos in variable names, etc. The only code change is to refactor ResourceLocalizationService so each event type is handled in its own method instead of a giant switch statement (just using eclipse's Extract Method - no semantic change)

Issue Links

• blocks: MAPREDUCE-3162 Separate application-init and container-init event types in NM's ApplicationImpl FSM