Meaure server time of Get/Scan - through RPC logging?

[Wei Tan <wt...@us.ibm.com>]

Hi I am using YCSB to measure the performance of some complex Get/Scan, 
i.e., with some filters. I found that I got weird high latency from YCSB 
client but both HBase server and YCSB client are NOT saturated (in terms 
of network, I/O, CPU). So I want to measure the server time a single 
Get/Scan takes.

Is there a way to do it? From the documentation it seems that RPC logging 
is a place to look but the semantics of the logging is not well-documented 
so I wonder 1) if RPC logging is the right approach and 2) how I can 
interpret it correctly.


Thanks!


Best Regards,
Wei