[Gluster-devel] how about 1.3.8 and fuse-2.7.2-glfs7 ?

[Gareth Bult]

Sorry, 

Just to clarify, the problem I'm having with intensive IO down to gluster (not FUSE).

a. AFR/heal doesn't honor "sparse" file status (which is a pain for XEN images)
b. when striping an AFR, heal replicates every stripe regardless AND ignores spare file status
   (which means you can't really handle large DB files)

Example;

AFR/Stripe, 10 stripes 100M each.
Add a file, 500M in size.
Break the back-end by stopping a glusterfsd.
Add 1 byte to the file.
Restart the stopped glusterfsd.
See what happens .. I call it the glustered treacle effect .. ;-)

I don't see better block sizes making much difference here ...  :(

----- Original Message -----
From: "Marian Marinov" <mm at yuhu.biz>
To: "Gareth Bult" <gareth at encryptec.net>
Sent: Thursday, January 3, 2008 12:10:24 PM (GMT) Europe/London
Subject: Re: [Gluster-devel] how about 1.3.8 and fuse-2.7.2-glfs7 ?

Hopefuly this should save your machines from the intensive write operations as 
they will be reduced by the bigger blocksizes defined in fuse and glusterfs 
will be able to better handle file locks.

Marian

On Thursday 03 January 2008 13:58:52 you wrote:
> > OK, then why don't you recompile FUSE with my patch?
>
> Ok, in which case my answer is;
>
> "I have 14 nodes .. it would require 14 recompiles + 14 reboots and ~ 2
> hours .. and I would gain nothing (?)"
>
> Gareth.
>
> ----- Original Message -----
> From: "Marian Marinov" <mm at yuhu.biz>
> To: "Gareth Bult" <gareth at encryptec.net>
> Sent: Thursday, January 3, 2008 11:52:13 AM (GMT) Europe/London
> Subject: Re: [Gluster-devel] how about 1.3.8 and fuse-2.7.2-glfs7 ?
>
> it is a port of fuse-2.7.0-glfs7 patch for fuse 2.7.2
>
> it doesn't fix anything it just makes from standard fuse 2.7.2 glusterfs
> fuse-2.7.2 which is recomended simply because there are some locks and
> blocksizes changed strictly for glusterfs.
>
> Best regards
>   Marian
>
> On Thursday 03 January 2008 13:33:22 you wrote:
> > Urm,
> >
> > What does your 2.7.2 patch fix?
> >
> >
> > ----- Original Message -----
> > From: "Marian Marinov" <mm at yuhu.biz>
> > To: gluster-devel at nongnu.org
> > Sent: Thursday, January 3, 2008 11:20:13 AM (GMT) Europe/London
> > Subject: Re: [Gluster-devel] how about 1.3.8 and fuse-2.7.2-glfs7 ?
> >
> > OK, then why don't you recompile FUSE with my patch?
> >   http://hydra.azilian.net/patches/fuse-2.7.2-glfs7.patch
> >
> > Marian
> >
> > On Thursday 03 January 2008 13:16:49 Gareth Bult wrote:
> > > Hi,
> > >
> > > The real problem for me was 1.3.7 bounces like a rubber ball. (machine
> > > lock-up under intensive write)
> > >
> > > (incidentally the versioning indicates the fuse patches are against
> > > 2.7.2 as opposed to 2.7.0) (raw fuse-2.7.2 causes me problems)
> > >
> > > glfs7 / gluster TLA is stable for me, however there are one or two
> > > *CRITICAL* bugs which you really need to be aware of if you're going to
> > > try using it. The main issue being that all machines using AFR should
> > > use the same node as a mount point otherwise things will break horribly
> > > in the event of breakages / self-heals. (some people may not consider
> > > this critical, however if you have heart problems I can assure you it
> > > is .. ;-) )
> > >
> > > See bug # 21918 (and you may want to be aware of 21917/16 if the system
> > > seems like it's doing more IO than it should)
> > >
> > > Gareth.
> > >
> > > ----- Original Message -----
> > > From: "Amar S. Tumballi" <amar at zresearch.com>
> > > To: "Sascha Ottolski" <ottolski at web.de>
> > > Cc: "gluster-devel" <gluster-devel at nongnu.org>
> > > Sent: Thursday, January 3, 2008 11:03:39 AM (GMT) Europe/London
> > > Subject: Re: [Gluster-devel] how about 1.3.8 and fuse-2.7.2-glfs7 ?
> > >
> > > Hi,
> > >  Yes, we, from the dev team, recommend latest tla as it has much more
> > > features than 1.3.7 release, and has lot of bug fixes. We are in the
> > > process of making 1.3.8, but little more coding is pending for that
> > > (which we hope to finish within another week or so). So, your wait is
> > > going to be over.
> > >
> > > About, glfs7 for fuse-2.7.2, its not in official repo yet. Should be
> > > available with 1.3.8 tarball soon.
> > >
> > > Regards,
> > > Amar
> > >
> > > On Jan 3, 2008 4:18 PM, Sascha Ottolski <ottolski at web.de> wrote:
> > > > Hi,
> > > >
> > > > I've seen talks about patches for fuse-2.7.2, and it appears as if
> > > > the current
> > > > tla is much more recommended than 1.3.7. I think it would be nice if
> > > > tarballs
> > > > of this would be offered (and awesome if lmello could update the
> > > > debian packages :-))
> > > >
> > > > I would also volunteer to create the deb packages, although I'm
> > > > pretty new to
> > > > that business...
> > > >
> > > >
> > > > Cheers, Sascha
> > > >
> > > >
> > > > _______________________________________________
> > > > Gluster-devel mailing list
> > > > Gluster-devel at nongnu.org
> > > > http://lists.nongnu.org/mailman/listinfo/gluster-devel
> >
> > _______________________________________________
> > Gluster-devel mailing list
> > Gluster-devel at nongnu.org
> > http://lists.nongnu.org/mailman/listinfo/gluster-devel