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HBase, mail # user - Meaure server time of Get/Scan - through RPC logging?

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Meaure server time of Get/Scan - through RPC logging?
Wei Tan 2012-12-02, 17:21
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.
Best Regards,
Wei Tan 2012-12-09, 02:41
Asaf Mesika 2012-12-09, 10:12