[Openais] quorum service question

David Teigland teigland at redhat.com
Tue Nov 17 14:03:00 PST 2009


On Tue, Nov 17, 2009 at 12:02:22PM +0100, Dietmar Maurer wrote:
> > > So what is the suggested way to block some CPG operation when quorum
> > is lost (how to integrate quorum into an CPG application)?
> > >
> > 
> > Use the quorum library, and check the cluster is quorate before sending
> > messages. You don't need to call the quorum_getquorate() call every
> > time, you can register for callbacks when it changes.
> 
> That way you use 2 different services - votequorum an CPG. Is there
> really a defined order between those messages?

There are no quorum messages, but correlating events between cpg and
quorum is a problem, I described my own trouble with it here:

https://lists.linux-foundation.org/pipermail/openais/2009-September/013022.html 

Dave



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