Hi, On Fri, May 27, 2011 at 02:04:00PM +0200, Ulrich Windl wrote: > Hi! > > I have a question due to a problem that causes a node fence: > When I set up a Volume group on an MD-RAID device, trying to start these > resources through pacemaker causes a node fence. I didn't investigate, but I > guess the problem is that the resources are already up when the RAs try to > start them. > > This berings up the question: Should RA's methods be idempotent? That is: > When trying to start a service that is already started, should that be OK, or > should it be an error? Likewise: When trying to stop a resource that is > already stopped, it it OK, or is it an error?
All RA actions must be idempotent. If not, then the RA has to be fixed. This is a common problem with some LSB (init) scripts. > Independent of that I'm having a problem with an NFS server: The exportfs > method (or the nfs server) hangs, causing a node fence. Please post details in a separate thread. Thanks, Dejan > Regards, > Ulrich > > > _______________________________________________ > Linux-HA mailing list > [email protected] > http://lists.linux-ha.org/mailman/listinfo/linux-ha > See also: http://linux-ha.org/ReportingProblems _______________________________________________ Linux-HA mailing list [email protected] http://lists.linux-ha.org/mailman/listinfo/linux-ha See also: http://linux-ha.org/ReportingProblems
