Re: Tuning Nautilus for flash only

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Paul,

Absolutely, I said I was looking at those settings and most didn't make
any sense to me in a production environment (we've been running ceph
since Dumpling).

However we only have 1 cluster on Bluestore and I wanted to get some
opinions if anything other than the defaults in ceph.conf or sysctl or
things like Wido suggested with c-states would make any differences.
(Thank you Wido!)

Yes, running benchmarks is great, and we're already doing that
ourselves.

Cheers and have a nice evening!

-- 
David Majchrzak


On tor, 2019-11-28 at 17:46 +0100, Paul Emmerich wrote:
> Please don't run this config in production.
> Disabling checksumming is a bad idea, disabling authentication is
> also
> pretty bad.
> 
> There are also a few options in there that no longer exist (osd op
> threads) or are no longer relevant (max open files), in general, you
> should not blindly copy config files you find on the Internet. Only
> set an option to its non-default value after carefully checking what
> it does and whether it applies to your use case.
> 
> Also, run benchmarks yourself. Use benchmarks that are relevant to
> your use case.
> 
> Paul
> 

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