[HBASE-9869] Optimize HConnectionManager#getCachedLocation

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.98.0, 0.96.0
• Fix Version/s: 0.98.0, 0.96.1
• Component/s: Client
• Hadoop Flags: Reviewed
• Assignee: Nicolas Liochon
• Reporter: Nicolas Liochon
• Created: 31/Oct/13 16:56
• Updated: 16/Dec/13 18:46
• Resolved: 17/Nov/13 10:33

Description

It javadoc says: "TODO: This method during writing consumes 15% of CPU doing lookup". This is still true, says Yourkit. With 0.96, we also spend more time in these methods. We retry more, and the AsyncProcess calls it in parallel.

I don't have the patch for this yet, but I will spend some time on it.

Issue Links

• is related to: HBASE-9775 Client write path perf issues