[MAPREDUCE-5596] Allow configuring the number of threads used to serve shuffle connections

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.2.0
• Fix Version/s: 2.3.0
• Hadoop Flags: Reviewed
• Assignee: Sandy Ryza
• Reporter: Sandy Ryza
• Created: 26/Oct/13 01:08
• Updated: 03/Sep/14 23:35
• Resolved: 29/Oct/13 13:57

Description

MR1 had mapreduce.tasktracker.http.threads. MR2 always uses the Netty default 2 * Runtime.availableProcessors(). We should make this configurable.