[MAPREDUCE-1218] Collecting cpu and memory usage for TaskTrackers

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.22.0
• Fix Version/s: 0.21.0

Environment

linux

• Hadoop Flags: Incompatible change, Reviewed
• Release Note: This patch allows TaskTracker reports it's current available memory and CPU usage to JobTracker through heartbeat. The information can be used for scheduling and monitoring in the JobTracker. This patch changes the version of InterTrackerProtocal.
• Assignee: Scott Chen
• Reporter: Scott Chen
• Created: 18/Nov/09 00:41
• Updated: 20/Sep/12 14:07
• Resolved: 13/Jan/10 21:06

Description

The information can be used for resource aware scheduling.
Note that this is related to MAPREDUCE-220. There the per task resource information is collected.
This one collects the per machine information.