[MAPREDUCE-5692] Add explicit diagnostics when a task attempt is killed due to speculative execution

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.2.0
• Fix Version/s: 2.3.0
• Component/s: mrv2
• Hadoop Flags: Reviewed
• Assignee: Gera Shegalov
• Reporter: Gera Shegalov
• Created: 19/Dec/13 12:16
• Updated: 20/Jun/16 21:40
• Resolved: 20/Dec/13 19:58

Description

We need to clearly indicate when a task attempt is killed because another task attempt succeeded first when speculative execution is enabled.

Issue Links

• is duplicated by: MAPREDUCE-3294 Log the reason for killing a task during speculative execution