[MAPREDUCE-3528] The task timeout check interval should be configurable independent of mapreduce.task.timeout

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.23.0
• Fix Version/s: 0.23.1
• Component/s: mr-am, mrv2
• Hadoop Flags: Reviewed
• Release Note: Fixed TaskHeartBeatHandler to use a new configuration for the thread loop interval separate from task-timeout configuration property.
• Assignee: Siddharth Seth
• Reporter: Siddharth Seth
• Created: 10/Dec/11 03:31
• Updated: 05/Mar/12 02:49
• Resolved: 09/Jan/12 22:38

Description

TaskHeartbeatHandler sleeps for 'mapreduce.task.timeout' - between each check. If a task/NM goes bad immediately after starting a task - the timeout is detected in ~2x the configured timeout interval.