[MAPREDUCE-1476] committer.needsTaskCommit should not be called for a task cleanup attempt

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.20.1
• Fix Version/s: 0.21.0
• Hadoop Flags: Reviewed
• Release Note: Fixed Map/Reduce framework to not call commit task for special tasks like job setup/cleanup and task cleanup.
• Assignee: Amareshwari Sriramadasu
• Reporter: Amareshwari Sriramadasu
• Created: 10/Feb/10 10:52
• Updated: 24/Aug/10 21:20
• Resolved: 15/Feb/10 14:23

Description

Currently, Task.done() calls committer.needsTaskCommit() to know whether it needs a commit or not. This need not be called for task cleanup attempt as no commit is required for a cleanup attempt.
Due to MAPREDUCE-1409, we saw a case where cleanup attempt went into COMMIT_PENDING state.