[MAPREDUCE-712] RandomTextWriter example is CPU bound

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.20.1, 0.21.0
• Fix Version/s: 0.21.0
• Component/s: examples

Environment

~200 nodes cluster
Each node has the following configuration:
Processors: 2 x Xeon L5420 2.50GHz (8 cores) - Harpertown C0, 64-bit, quad-core (8 CPUs)
4 Disks
16 GB RAM
Linux 2.6
Hadoop version: trunk

• Hadoop Flags: Reviewed
• Assignee: Christopher Douglas
• Reporter: Khaled Elmeleegy
• Created: 06/Jul/09 20:38
• Updated: 24/Aug/10 21:14
• Resolved: 21/Aug/09 01:29

Description

Running the RandomTextWritter example job ( from the examples jar) pegs the machiens' CPUs.