[MAPREDUCE-2646] MR-279: AM with same sized maps and reduces hangs in presence of failing maps

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 0.23.0
• Fix Version/s: 0.23.0
• Component/s: applicationmaster, mrv2
• Hadoop Flags: Reviewed
• Assignee: Sharad Agarwal
• Reporter: Sharad Agarwal
• Created: 06/Jul/11 05:40
• Updated: 15/Nov/11 00:48
• Resolved: 26/Sep/11 13:29

Description

Currently AM can assign a container given by RM to any map or reduce. However RM allocates for a particular priority. This leads to AM and RM data structures going out of sync.