[Gluster-users] What application workloads are too slow for you on gluster?
Pranith Kumar Karampuri
pkarampu at redhat.com
Sun Sep 25 00:36:53 UTC 2016
On Sat, Sep 24, 2016 at 8:59 PM, Kevin Lemonnier <lemonnierk at ulrar.net>
> On Sat, Sep 24, 2016 at 07:48:53PM +0530, Pranith Kumar Karampuri wrote:
> > hi,
> > A A A A A I want to get a sense of the kinds of applications you
> > out on gluster but you had to find other alternatives because gluster
> > didn't perform well enough or the soultion would become too expensive
> > you move to all SSD kind of setup.
> Web Hosting is what comes to mind for me. Applications like prestashop,
> some custom apps ... I know that I try to use DRBD as much as I can for
> that since
> GlusterFS makes the sites just way too slow to use, I tried both fuse and
> NFS (not
> ganesha since I'm on debian everytime though, don't know if that matters).
> Using things like OPCache and moving the application's cache outside of
> the volume
> are helping a lot but that brings a whole loads of other problems you
> can't always
> deal with, so most of the time I just don't use gluster for that.
> Last time I really had to use gluster to host a web app I ended up
> installing a VM
> with a disk stored on glusterfs and configuring a simple NFS server, that
> was way
> faster than mounting a gluster volume directly on the web servers. At
> least that
> proves VM hosting works pretty well now though !
> Now I can't try tiering, unfortunatly I don't have the option of having
> hardware for
> that, but maybe that would indeed solve it if it makes looking up lots of
> tiny files
I guess website hosting could be small-file workload related? Tiering may
not help here until we reduce network round trips. I was wondering if
anyone has any write intensive workload that gluster couldn't keep up with
and they had to move to SSDs to make sure gluster works fine with it.
> Kevin Lemonnier
> PGP Fingerprint : 89A5 2283 04A0 E6E9 0111
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