[Cluster-devel] disallowed in cluster3

Fabio M. Di Nitto fdinitto at redhat.com
Thu Aug 6 17:39:22 UTC 2009


On Thu, 2009-08-06 at 08:08 +0100, Christine Caulfield wrote:
> On 05/08/09 17:52, David Teigland wrote:
> > When rewriting daemons for cluster3 to remove groupd, I wrote them to not need
> > or use the disallowed-nodes feature from cman for handling remerging of
> > cluster partitions.  In compat mode, however, (the cluster2 code) they would
> > still depend on that cman feature, which is why it still exists in cluster3
> > cman.
> >
> > I've found, though, that when we do have a partition remerge, cman's
> > disallowed feature gets in the way of the daemons trying to handle it
> > themselves (which I'm testing, it doesn't seem quite right in all
> > partitioning/merging cases yet.)
> >
> > So, I think what we need is for cluster3 cman to turn off the disallowed
> > feature unless the cluster is in compat mode, i.e.<group groupd_compat="1"/>
> > exists.
> 
> 
> Thanks, I've been looking for an excuse to add code to cluster3 to 
> disable that mode ;-)
> 
> I'm not happy with cman reading groupd tags out of cluster.conf though. 

We can always use cman-preconfig to map back and forward <cluster
compat.. to/from <groupd_compat.. 

after all we do all the config "dirty laundry" there... :)

Fabio




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