Write TPS with RF=3 Vs RF=1 [closed]

asked 2013-08-28 14:02:23 -0500

kbsangha gravatar image

updated 2016-07-27 07:51:14 -0500

fifieldt gravatar image

Hi - We are using ssbench to do some performance tests and the observation is as below -

1 Proxy node, 3 storage nodes. Seperate node for load tool (ssbench)

1) RF = 3, Only Create, 0.5 MB files. TPS = 119/s 2) RF = 1, Only Create, 0.5 MB files. TPS = 353/s

If I understand correctly, writes work on Quorum and they are send concurrently to all nodes. So why is there such a difference in the TPS between RF=3 and RF=1 ? Shouldn't the difference be only the latency to wait for quorum to succeed ?

Thanks, Kanwar Sangha

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Closed for the following reason question is not relevant or outdated by mrhillsman
close date 2018-12-02 21:32:03.660465

Comments

What is RF?

fifieldt gravatar imagefifieldt ( 2016-12-22 23:08:55 -0500 )edit