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Re:120K distributed consistent writes per second with Calvin by qaq on Saturday February 25, 2017 @10:17AM (#13731889)
By extrapolation writes are IO bound you don't need crazy expensive things to get to the needed number of IOPS Intel 750 is 230,000 random writes @ $320 per PCI-E SSD. 9 drive config is over 2,000,000 IOPS for less than 3K.
Re:120K distributed consistent writes per second with Calvin by g0del_was_wr0ng on Saturday February 25, 2017 @10:30AM (#13731944)
Yeah it's a bit more complex than that... The disk "IOPS" number on the box doesn't translate 1:1 or even linearly to number of committed durable transactions per second. You should try this with postgres and see how it goes.
Re:120K distributed consistent writes per second with Calvin by qaq on Saturday February 25, 2017 @11:14AM (#13732160)
If you land me 30K for the hardware I would be glad to do it :). For writing WAL it scales reasonably close to linear