What sort of throughput should I expect from a Region Server?

[#1]

Can anyone point me at some good recent benchmarks for HBase throughput, ideally with read and write numbers on both a wide- and narrow- column schema.

Transaction counts and Mbits throughput vs theoretical disk throughput would be very useful as a measure of HBase overheads.

[#2 · Accepted solution]

Of course the answer is hard as it depends on many moving parts, what size is your data, do you have it all in cache, how many CFs, do you have skew etc...

Andrew purtell had this benchmark for the 98 series that can provide insight.

http://grokbase.com/p/hbase/dev/145bvdsjaz/comparing-the-performance-of-0-98-2-rc0-and-0-98-0-using-...

I don't know If we have any internal benchmarks that we could share