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Re: [Gluster-devel] Stateless Gluster 3.x series
From: |
Ian Latter |
Subject: |
Re: [Gluster-devel] Stateless Gluster 3.x series |
Date: |
Mon, 16 Apr 2012 00:58:26 +1000 |
----- Original Message -----
>From: "Ian Latter" <address@hidden>
>To: "Vijay Bellur" <address@hidden>
>Subject: Re: [Gluster-devel] Stateless Gluster 3.x series
>Date: Fri, 13 Apr 2012 23:04:59 +1000
>
>
>
>
>
> ----- Original Message -----
> >From: "Vijay Bellur" <address@hidden>
> >To: "Ian Latter" <address@hidden>
> >Subject: Re: [Gluster-devel] Stateless Gluster 3.x series
> >Date: Fri, 13 Apr 2012 18:27:38 +0530
> >
> > On 04/13/2012 02:26 PM, Ian Latter wrote:
> > > Hello,
> > >
> > >
> > > Until yesterday all of my experiments with Gluster have
> > > been with a vi'd vol file and the Glusterfsd process.
> > > Michael and I have now done testing with glusterd under
> > > Gluster version 3.2.6 and this has raised some issues.
> > > The one I'd like to query in this thread is stateless
> > > environments.
> > >
> > > If I have a PXE distribution that boots, tftp's a
config
> > > file, mounts storage devices and then initialises gluster
> > > then;
> > >
> > > Previously - I wrote out the appropriate vol file and
> > > started the necessary daemons.
> > >
> > > Now - I start the necessary daemon and issue a set
> > > of commands to build the appropriate configuration.
> > >
> > > .. however, this results in a new gluster UUID each
> > > time the node restarts.
> > >
> > > So;
> > >
> > > 1) Is there a gluster command to configure gluster
> > > with a specific UUID?
> > >
> > > -or-
> > >
> > > 2) Is there a means to provide gluster with UUID
> > > data outside of the gluster commands
> > >
> > >
> >
> > You could populate glusterd.info in the working directory
> (/etc/glusterd
> > or /var/lib/glusterd) with the desired UUID and start
> glusterd. glusterd
> > uses this UUID as part of its initialization process. If
> the file (or
> > UUID) is not available, then it re-generates a new UUID.
> >
> > --Vijay
> >
>
>
> Thanks Vijay,
>
> I thought we'd try this, but I will re-test in case we
> missed it.
>
> Cheers,
>
Thanks Vijay,
Clearly my mistake, as this works.
I think I have confused this with my volume testing (we
were unable to find a minimal set of files to populate per
volume in order to get it to start from static config info
only), and I recall a uuid in there also.
I have run out of time to do more integration testing; I
will come back with further queries when I get another
chance.
Cheers,
--
Ian Latter
Late night coder ..
http://midnightcode.org/