[MAPREDUCE-430] Task stuck in cleanup with OutOfMemoryErrors

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.20.1
• Hadoop Flags: Reviewed

Release Note

Various code paths in the framework caught Throwable and tried to do inline cleanup. In case of OOM errors, such inline-cleanups can result into hung jvms. With this fix, the TaskTracker provides a api to report fatal errors (any throwable other than FSErrror and Exceptions). On catching a Throwable, Mapper/Reducer tries to inform the TT.

• Assignee: Amar Kamat
• Reporter: Amareshwari Sriramadasu
• Created: 19/Jun/09 05:55
• Updated: 27/Aug/09 16:10
• Resolved: 26/Aug/09 16:12

Description

Obesrved a task with OutOfMemory error, stuck in cleanup.