[TEZ-93] Use central AsyncDispatcher to relay events. Process events on different events based threads.

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Labels: TEZ-1
• Assignee: Bikas Saha
• Reporter: Hitesh Shah
• Created: 01/May/13 00:39
• Updated: 12/May/15 21:45
• Resolved: 12/May/15 21:45

Description

Currently the central dispatcher is a central lock and concurrent work gets bottlenecked on it. This can slow down the AM. If each event type was handled in its own thread then different event types could proceed in parallel. This would maintain serialization of events within an event type and may be overridden by the specific event handlers to make even them concurrent.

Issue Links

• relates to: TEZ-1867 Create new central dispatcher for Tez AM