[Linux-cluster] pacemaker + corosync + clvmd?

[Steven Dake]

On Wed, 2009-11-04 at 20:58 +0100, Nikola Ciprich wrote:
> Hi Steve,
> and thanks for Your reply!
> well, while compiling lvm, I can enable cman,corosync or openais
> locking support. I don't want to use cman, corosync doesn't work

I'm not sure what corosync locking support is.  Chrissie is the expert
here.  She is in EU timezone so might have to wait until later to get a
full response.

> for me and to use openais, I'd surely had to have openais working,
> but it seems to me it also doesn't want to play well together with
> corosync. So You mean I should get openais working? I'd still prefer
> corosync, if this is somehow possible, but if it's not, I'll try to
> find out how to start openais along with corosync.
> regards
> nik
> 

the way you start openais 1.0.0 or later is to run /usr/sbin/aisexec
(which starts corosync with the openais service engines).

Regards
-steve

> 
> On Wed, Nov 04, 2009 at 10:00:48AM -0700, Steven Dake wrote:
> > lvm2 depends on the cluster infrastrucure (the cluster package).  It
> > will alternatively (I believe compile time option) use the distirbuted
> > lock manager in the openais package.
> > 
> > Regards
> > -steve
> > 
> > On Wed, 2009-11-04 at 17:54 +0100, Nikola Ciprich wrote:
> > > ouch, I forgot to mention versions:
> > > I'm using
> > > corosync-1.1.2, pacemaker-1.0.6, lvm2-cluster-2.02.53 and running
> > > 2.6.31.5 kernel
> > > n.
> > > 
> > > 
> > > On Wed, Nov 04, 2009 at 05:50:12PM +0100, Nikola Ciprich wrote:
> > > > Hello,
> > > > I'm trying to integrate clvmd to pacemaker+corosync cluster.
> > > > Corosync service starts nicely starting pacemaker, but trying to
> > > > start clvmd with corosync as cluster manager ends up with
> > > > "Can't initialise cluster interface" error 
> > > > and 
> > > > "Unable to create lockspace for CLVM: Transport endpoint is not connected" 
> > > > appearing in syslog.
> > > > strace shows that clvmd tries to open /dev/misc/dlm-control,
> > > > but certainly nothing is connected to it. I wasn't successfull in running
> > > > cman either (and I'd actually like to avoid that and use only corosync).
> > > > Has anybody got this combination running? Could somebody advise me?
> > > > thanks a lot in advance.
> > > > with best regards
> > > > nikola ciprich
> > > > 
> > > > 
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