[HBASE-10007] PerformanceEvaluation: Add sampling and latency collection to randomRead test

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 0.98.0, 0.96.1, 0.94.15
• Component/s: Performance, test
• Hadoop Flags: Reviewed
• Assignee: Nick Dimiduk
• Reporter: Nick Dimiduk
• Created: 20/Nov/13 00:15
• Updated: 16/Dec/13 18:46
• Resolved: 22/Nov/13 21:22

Description

As I mentioned over on HBASE-9940, I'd like to have randomRead operate only on a sample of the total dataset. It would also be useful to collect latency measurements from individual responses. Throughput times are aggregated according to the amount of user data processed and the result is reported as well. This is a patch I've been using for some performance tests I've run – maybe it'll be useful to someone else.