[HBASE-11403] Fix race conditions around Object#notify

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.99.0, 0.98.3
• Fix Version/s: 0.99.0, 0.98.4
• Component/s: Client, regionserver
• Hadoop Flags: Reviewed
• Assignee: Nicolas Liochon
• Reporter: Nicolas Liochon
• Created: 23/Jun/14 14:37
• Updated: 21/Feb/15 23:34
• Resolved: 24/Jun/14 11:33

Description

We do have some race conditions there. We don't see them fail in the unit tests, because our #wait are bounded. But from a performance point of view, they do occur. I've reviewed them and fix all the issue I found excepted in the AM (haven't reviewed this one, may be it's fine).

On a perf test, this seems to improve the max latency.