18 Oct
2019
18 Oct
'19
12:06 a.m.
On Thu, Oct 17, 2019 at 1:05 PM Matt Benjamin <mbenjami(a)redhat.com> wrote:
My impression is that running a second gateway (assuming 1 at present)
on the same host would be preferable to running one with very high
thread count, also that 1024 is a good maximum value for thread count.
We are running 4 RGW containers per host and have 4 hosts for 16 RGW
instances. This cluster was doing 200,000+ IOs per second according to
`ceph -s`. We can expect more large objects as the system load is
increased, but the vast majority of objects will be really small. I'm
almost tempted to have more threads in the thread pool than max
concurrent requests so that there is a buffer of idle threads rather
than IOs being scheduled behind one another.
----------------
Robert LeBlanc
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