[Gluster-devel] Extended Attributes

[Amar S. Tumballi]

Hi Paul,
 Yeah! these changes were done after pre6, thats the version I tested on
your machines too. I committed the changes required to compile over BSD
already to mainline-2.5, and jordan confirmed it works fine now. So, you can
use mainline--2.5--patch-770, or choose to wait one or two days more, so you
can get 1.3.9 tarball, with all these fixes.

Regards,
Amar

On Tue, May 13, 2008 at 4:20 PM, Paul Arch <paul at esidium.com.au> wrote:

> Hi Jordan,
>
>
>
>  No immediate reason for xfs namespace, just seemed good for resizing and
> specifying heaps of inodes - plus it shouldn't need any fsck'ing, even
> though it is only 10gb in size I don't know how long it would take because
> it has so many directories/files.  I cannot remember trying to create a
> namespace on ZFS, I am sure I did and it worked fine, it just made sense
> in
> my setup to have the namespace on the client, as my setup will always be a
> 'one client' / 'multiple server' scenario.
>
>
>
>  Sorry I just realised off some other messages, I have been running
> 1.3.8pre6 ( or 7), I think this then somehow got renamed to 1.3.8.freebsd2
> after we were compiling it and fixing any issues we came across.  I had
> thought this had been integrated into the main tree already.
>
>
>
>  Cheers
>
>
>
>  Paul Arch
>
>
>
>
>
>
>
> From: jordanmendler at gmail.com [mailto:jordanmendler at gmail.com] On Behalf
> Of
> Jordan Mendler
> Sent: Tuesday, 13 May 2008 11:01 AM
> To: Paul Arch
> Cc: gluster-devel at nongnu.org
> Subject: Re: [Gluster-devel] Extended Attributes
>
>
>
> Hi Paul,
>
> I got unify working across 2 ZFS nodes (12-13TB each), and am able to
> write
> files into it. I can read and cat files too, but for some reason doing an
> 'ls' of the directory takes forever and never returns. Have you had any
> issues this like? It's weird because I can so all files when doing an ls
> of
> the namespace, just not when doing so on the fuse mount.
>
> Also, why use XFS for the namespace? I was thinking to just create a
> separate ZFS directory or zpool for the namespace on one of the storage
> servers. Any reason not to do this?
>
> Lastly, what version of gluster are you using on FreeBSD?
>
> I also gave some thought to OpenSolaris and Nexenta, but they don't
> support
> 3ware RAID cards so its not an option. It's looking like either figure out
> how to get FreeBSD working flawlessly, or use Linux and give up on
> compression.
>
> Thanks so much,
> Jordan
>
> On Mon, May 12, 2008 at 5:37 PM, Paul Arch <paul at esidium.com.au> wrote:
>
>
>
> <snip>
>
>
> >Thanks again.
> >
> >Jordan
> >
> >On Mon, May 12, 2008 at 3:38 PM, Amar S. Tumballi <amar at zresearch.com>
> >wrote:
> >
>
> <snip>
>
>
>
> Hi Jordan,
>
>  Also FYI we are running Gluster on FreeBSD 6.1, and FreeBSD 7.0RC1 (
> Servers only ).  7.0RC1 has ZFS running on backend store, 6.1 is UFS.
>
>  System has ~ 10 million files over maybe 7Tb, running a simple unify,
> client is Linux with namespace Linux also.
>
>  Generally, I would say things are 99.5% good, system seems to be holding
> together, I believe the only issues I have had related to attempting to
> bring in data on the servers( without gluster ) and then unify them.
>  After
> that, anything written to the cluster seems very stable.  In between I did
> do a lot of chopping/changing on namespace so I am sure that didn't help.
>
>  I can't remember specifically if the client worked under freebsd ( I am
> quite sure it ended up working ), but as Amar has suggested AFR and stripe
> won't work, looks like because of the attributes.
>
>  The only real gotcha I got, and this will relate to any unify/cluster
> setup
> I assume, is to make sure the namespace filesystem can support the number
> of
> files you have ( ie FREE INODES )  I got unstuck with this a couple of
> times, hence the reason for chopping/changing namespace.  In the end I
> created a 10gb XFS loopback image under linux - but even now I just
> checked
> and I am nearly out of inodes again ! But at least I can easily resize it.
>
>
>  Cheers
>
>  Paul Arch
>
>
>
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>



-- 
Amar Tumballi
Gluster/GlusterFS Hacker
[bulde on #gluster/irc.gnu.org]
http://www.zresearch.com - Commoditizing Super Storage!