[MAPREDUCE-3810] MR AM's ContainerAllocator is assigning the allocated containers very slowly

• Type: Sub-task
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 0.23.0
• Fix Version/s: 0.23.1
• Component/s: mrv2, performance
• Assignee: Vinod Kumar Vavilapalli
• Reporter: Vinod Kumar Vavilapalli
• Created: 05/Feb/12 21:20
• Updated: 05/Mar/12 02:49
• Resolved: 06/Feb/12 22:08

Description

This is mostly due to logging and other not-so-cheap operations we are doing as part of the AM->RM heartbeat cycle.

Issue Links

• blocks: MAPREDUCE-3524 Scan benchmark is more than 1.5x slower in 0.23