[Linux-cluster] Freeze with cluster-2.03.11

Steven Whitehouse swhiteho at redhat.com
Mon Mar 30 09:47:30 UTC 2009


On Mon, 2009-03-30 at 11:20 +0200, Kadlecsik Jozsef wrote:
> Hi,
> On Mon, 30 Mar 2009, Steven Whitehouse wrote:
> > > We'd need features added to recent 2.6 kernels (like read-only bindmount), 
> > > so the natural path was upgrading GFS1. However, as in the present state 
> > > our cluster is unstable, either we have to find the culprit or go back to 
> > > the proven version (and loosing the required new features).
> > 
> > Read only bind mounts have not been tested with gfs1 and they might very
> > well not work correctly, so be careful. Our general plan is to try and
> > introduce new features into GFS2 and to maintain GFS with its existing
> > feature set. Thats not to say that there will be no new features in GFS,
> > but just that we are trying in general to put the new stuff in GFS2.
> We do not need read-only bind mounts in GFS itself but in local 
> filesystems.
Ok, that should be fine then.

> > Upgrading from GFS1 to GFS2 will always have to involve a shutdown in
> > cluster operations since the differing journalling schemes rule out a
> > node by node in place upgrade I'm afraid,
> That's fully acceptable. I assume there's no problem in running GFS1 and 
> GFS2 volumes in parallel?
> Best regards,
> Jozsef
No, they are designed to be able to run in parallel, so there should be
no issues doing that,


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