[HBASE-15047] Try spin lock for MVCC completion

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Assignee: Elliott Neil Clark
• Reporter: Elliott Neil Clark
• Created: 29/Dec/15 04:21
• Updated: 16/Mar/16 17:54

Description

Waits/Notify is very very expensive since it can cost a thread scheduling. There should only ever be a few threads ( < Num Cores ) running. So it should be possible to spin and use compare and swap to update the read point.