Hi folks,
There're 30 HDDs on three 24 threads severs. Each has 2 10G NICs. one for public and one for cluster . A dedicated 32threads server for RadosGW. My setting is to achieve same availability as Swift. So that the pool size=3 anf min_size=2. for all RadosGW related pools. Each pool's pg is set to 2000. Everything is working well but performance. Round1) Journals all a SSD with 10 partitions on each server. It's faster for small object(1KB). 1100reqs/sec under concurrency=100. But there's a problem, the total throughPUT has only 150MB/sec. Round2) Journals on HDDs itself Better throughPU in this way. The Rados Bench shows 300~400MB/sec. But the 1KB reqs/sec is really bad about 400reqs/sec. And ..... the reqs/sec reduced along with the number of concurrency. For example 500 concurrency can only handle 120reqs/sec. Dose anyone use RadosGW for high concurrency cases in real? Could you please let me know which http server are you running for RadosGW ? How will you leverage all these equipments for building a most efficiency Rados+RadosGW cluster with Swift API ? For reference, with same HW and similar setup, Swift can get 1600reqs/sec with 1000 concurrency.
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