[Gluster-users] Self Heal Sync Speed after 3.7.11 and small file performance

[Kevin Lemonnier]

Hi,

Yes, it works mostly fine but ofcourse it's quite slow.
We have PHP applications on it, as long as you enable APCu and OPCache,
it's pretty good.
As for the CPU usage I didn't notice anything of the sort, but maybe we
aren't talking about the same kind of usage.

On Fri, May 06, 2016 at 05:59:30PM +0300, Kayra Otaner | BilgiO wrote:
> Hello there,
> 
> We've had serious CPU utilization issues with pre 3.7.9 GlusterFS, due to
> huge number of small files. CPU load was going up to 40-50 (on 32 core
> system) with nothing else running on it.
> We've observed multiple other Gluster users reporting similar issues, and
> waited for bug fix to be released. It seems like SHD freeze issue is
> resolved with 3.7.10 and now we're upgrading 3.7.11 however now we're
> observing very slow heal speed between nodes.
> 
> I see people are mostly using Gluster for storage backend to OpenStack to
> house large VM images. I've used Gluster back in 2010, before RH purchase,
> but my use case had smaller number of files back then.
> Has anyone else have experience with hosting large number of small files on
> GlusterFS cluster ?
> 
> Thank you
> 
> 
> -- 
> Kayra Otaner
> BilgiO A.Ş. -  SecOps Experts
> PGP KeyID : A945251E | Manager, Enterprise Linux Solutions
> www.bilgio.com |  TR +90 (532) 111-7240 x 1001 | US +1 (201) 206-2592

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-- 
Kevin Lemonnier
PGP Fingerprint : 89A5 2283 04A0 E6E9 0111
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