[Gluster-devel] Local vs unify

Brandon Lamb brandonlamb at gmail.com
Sun Apr 27 15:52:25 UTC 2008


On Sun, Apr 27, 2008 at 5:33 AM, Gareth Bult <gareth at encryptec.net> wrote:
> >Are there some benchmrks available about this ?
>
> I'm not entirely sure how useful benchmarks are, certainly in this context. As demonstrated by the benchmarks currently on the site, it's quite possible to make them show pretty much whatever you want if you pick your own context.
>
> Gluster REALLY is quick in some contexts, certainly I can make Gluster look quick compared to NFS if we're talking about access to a single file or copying larger files. If on the other hand we're talking smaller files (i.e. many real world situations) then Gluster falls flat. "find" on a large gluster FS can take minutes rather than seconds on a local FS (for example).
>
> It may of course be I'm doing it all wrong .. however (!) if I am, given the time I've spent and the fact that I do have it all working, there may be room for improvement when it comes to the documentation (!)
>
> >local storeage CAN be notable
>
> Note; gluster (in particular AFR) on large files is currently flawed (IMHO). gluster on lots of small files is, as far as I can see flawed in the context of being too slow compared to local file-system access. This is not to say that Gluster is not useful or that issues cannot be fixed.
>
> You might be advised to setup your own test framework and test with your own data to get a true measure of how Gluster will perform for "you" in "your" environment ... Gluster is SO flexible, generic benchmarks can often be nothing more than speculation..
>
> Just to clarify; I think Gluster's general design is second to none .. I just there there are still a few implementation glitches to work through ...
>
> Gareth.
>
>
>
> ----- Original Message -----
> From: "Alain Baeckeroot" <alain.baeckeroot at laposte.net>
> To: gluster-devel at nongnu.org
> Sent: Sunday, April 27, 2008 8:04:55 AM GMT +00:00 GMT Britain, Ireland, Portugal
> Subject: Re: [Gluster-devel] Local vs unify
>
> Le samedi 26 avril 2008, Gareth Bult a écrit :
> > Technically, if you have local storage on each node then GlusterFS/Unify is a useful solution, but the performance overhead compared to local storeage can be notable.
> >
>
> Are there some benchmrks available about this ?
>
> Regards
> Alain Baeckeroot
>
>
>
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Is it just me or does it seem like your latest mails have been sort of
insulting, and now this mail looks like you are attempting to turn
people away from glusterfs because you could not get it to work in
your situation?

Im not a developer so I cant speak for anyone else, but I dont
remember reading anywhere that glusterfs was production ready, a final
project, or anything to that matter? Is this not a project in the
works? If it works for you in its current state, super, but otherwise
it is an actively developed project? I also dont remember seeing that
you had to PAY for it anywhere, it is FREE. So to complain about it or
get rude over it, especially when you have not contributed or added
anything constructive to it, well thats kind of lame in my eyes.

Ive read the last couple mails and just thought to myself, god, i hope
the devs dont get pissed or bummed by this guy in any way.

If glusterfs doesnt work in your case, well, great, move on! There
were more than one suggestions about alternatives that were given, but
instead the thread just kept going on with no point in sight.

Not meaning to be a troll myself, or start a flame war but c'mon, its
free software, if it doesnt work for you dont bitch about it, move on
to something else, or help write a translator or whatever that does
what YOU want it to do.

Kudos to the guys/gals that have worked so hard on glusterfs, it seems
like such a kickass project. I have not implemented it into a
production environment myself YET, but I except there to be bugs and
things not working perfectly yet. As far as I know this is still a
fairly young project. My biggest hurdles has just been the learning
curve and how to set up the bricks in the various ways. But not once
have I complained that it didnt work right when it hasnt worked the
way I wanted it, most likely due to my lack of knowing how to properly
configure it.





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