[Gluster-devel] stat access does not change

[Daniel van Ham Colchete]

Vicent,

Although it can seen naive, I can bet this problem is happening at your
brick's posix. From what I understand, GlusterFS has no control over writing
or not writing atime. Can you do a "mount|grep noatime" at your servers?

If you do this test directly at the storage/posix brick, what happens?

Best,
Daniel

On Nov 9, 2007 8:42 AM, Vincent Régnard <vregnard at tbs-internet.com> wrote:

> Hi everybody,
>
> Seems here that access timestamp is not modified as expected on our
> gluster file system after file is opened. Can you reproduce this behaviour
> ?
>
> $ stat TBSX509CApersona2.crl
>    File: `TBSX509CApersona2.crl'
>    Size: 1324            Blocks: 16         IO Block: 1048576 regular file
> Device: ch/12d  Inode: 3604584     Links: 1
> Access: (0664/-rw-rw-r--)  Uid: ( 7886/cliprodcerts)   Gid: (
> 7886/cliprodcerts)
> Access: 2007-11-09 08:29:34.000000000 +0000
> Modify: 2007-11-09 10:06:32.000000000 +0000
> Change: 2007-11-09 10:06:32.000000000 +0000
>
> $ cat TBSX509CApersona2.crl
>
> $ stat TBSX509CApersona2.crl
>    File: `TBSX509CApersona2.crl'
>    Size: 1324            Blocks: 16         IO Block: 1048576 regular file
> Device: ch/12d  Inode: 3604584     Links: 1
> Access: (0664/-rw-rw-r--)  Uid: ( 7886/cliprodcerts)   Gid: (
> 7886/cliprodcerts)
> Access: 2007-11-09 08:29:34.000000000 +0000
> Modify: 2007-11-09 10:06:32.000000000 +0000
> Change: 2007-11-09 10:06:32.000000000 +0000
>
> $ vi TBSX509CApersona2.crl (and save file)
>
> $ stat TBSX509CApersona2.crl
>    File: `TBSX509CApersona2.crl'
>    Size: 1324            Blocks: 16         IO Block: 1048576 regular file
> Device: ch/12d  Inode: 3604586     Links: 1
> Access: (0664/-rw-rw-r--)  Uid: ( 7886/cliprodcerts)   Gid: (
> 7886/cliprodcerts)
> Access: 2007-11-09 10:13:12.000000000 +0000
> Modify: 2007-11-09 10:13:12.000000000 +0000
> Change: 2007-11-09 10:13:12.000000000 +0000
>
> $ vi TBSX509CApersona2.crl (just read file)
>
> $ stat TBSX509CApersona2.crl
>    File: `TBSX509CApersona2.crl'
>    Size: 1324            Blocks: 16         IO Block: 1048576 regular file
> Device: ch/12d  Inode: 3604586     Links: 1
> Access: (0664/-rw-rw-r--)  Uid: ( 7886/cliprodcerts)   Gid: (
> 7886/cliprodcerts)
> Access: 2007-11-09 10:13:12.000000000 +0000
> Modify: 2007-11-09 10:13:12.000000000 +0000
> Change: 2007-11-09 10:13:12.000000000 +0000
>
>
> My config is gluster 1.3.7/fuse2.7.0-glfs5, linux 2.6.16.55. We have 3
> clients and 3 servers (1 client and 1 server on each host) on a 100Mb
> network with 5ms round trip between clients and servers. The 3 clients
> replicate with afr on client side over the 3 servers.
>
> On servers I have his stack:
>
> storage/posix
> features/posix-locks
> performance/io-threads
> protocol/server
>
> On clients I have this stack:
>
> protocol/client(*3)
> cluster/afr
> performance/io-threads
> performance/io-cache
> performance/write-behind
>
> --
> Vincent Régnard
> vregnard at tbs-internet.com
> TBS-internet.com
> 027 630 5902
>