[Gluster-users] AFR'd Namespace sets creation time on directory to 1970

[Markus Gerstner]

Hi Krishna,

I will try to reproduce the bug on Monday and give you a feedback if I was able to successfully do so.

Markus

> -----Original Message-----
> From: krishna.zresearch at gmail.com [mailto:krishna.zresearch at gmail.com] On
> Behalf Of Krishna Srinivas
> Sent: Friday, July 18, 2008 12:20 PM
> To: Markus Gerstner
> Cc: gluster-users at gluster.org
> Subject: Re: [Gluster-users] AFR'd Namespace sets creation time on
> directory to 1970
> 
> Markus,
> If you can remember the steps which caused this problem can you
> try to create the problem again?
> Thanks
> Krishna
> 
> On Fri, Jul 18, 2008 at 3:24 PM, Markus Gerstner <m.gerstner at bmiag.de>
> wrote:
> > Hi Krishna,
> >
> > the servers have been restarted before this bug occurred, yes. Files in
> the directory in question have not been modified since the restart.
> > However, as I just noticed, the creation time on the directory is
> "fixed" when it's updated, e.g. you create a new file inside the
> directory.
> >
> > Markus
> >
> >> -----Original Message-----
> >> From: krishna.zresearch at gmail.com [mailto:krishna.zresearch at gmail.com]
> On
> >> Behalf Of Krishna Srinivas
> >> Sent: Friday, July 18, 2008 11:41 AM
> >> To: Markus Gerstner
> >> Cc: gluster-users at gluster.org
> >> Subject: Re: [Gluster-users] AFR'd Namespace sets creation time on
> >> directory to 1970
> >>
> >> Hi Markus,
> >>
> >> Did you do anything to get that problem? i.e bring a server down ,
> create
> >> a new file etc? I am trying to see what steps caused this bug.
> >>
> >> Krishna
> >>
> >> On Fri, Jul 18, 2008 at 2:42 PM, Markus Gerstner <m.gerstner at bmiag.de>
> >> wrote:
> >> > Heya Mailing-List,
> >> >
> >> > we're using an AFR'd Namespace with one subvolume on each server in
> the
> >> FS, client-configuration as follows:
> >> > volume backup-afr-ns
> >> >        type cluster/afr
> >> >        subvolumes backup-ns1 backup-ns2 backup-ns3 backup-ns4
> >> > end-volume
> >> >
> >> > The namespace-volumes are stored on XFS, clients and servers use
> debian.
> >> XFS is mounted with "noatime"-Option.
> >> > Data-Volumes are stored on ext3 with noatime and user_xattr.
> >> >
> >> > We set it up like that to ensure redundancy on the namespace without
> >> being dependant on the clients. Maybe this is not the proper way to use
> a
> >> namespace, if so, please let me know.
> >> >
> >> > Should it be the proper way, I'd like to ask why the date on one
> >> directory suddenly changed to 1970-01-01. The date is still correct in
> the
> >> data-volumes of the servers but set to 1970 on all servers' namespace-
> >> volumes. Unfortunately, the "fix" from the devel-mailinglist, using
> "head
> >> -1 * > /dev/null" does not apply here for obvious reasons.
> >> >
> >> > Is there a way to resync the namespace and reset the date or - even
> >> better - a way to prevent this from happening again? :-)
> >> >
> >> > Regards,
> >> > Markus
> >> >
> >> >
> >> > _______________________________________________
> >> > Gluster-users mailing list
> >> > Gluster-users at gluster.org
> >> > http://zresearch.com/cgi-bin/mailman/listinfo/gluster-users
> >> >
> >
> >