On Tue, Mar 29, 2011 at 08:13:49AM +0200, Christoph Bartoschek wrote: > Am 29.03.2011 02:35, schrieb Vadym Chepkov: > > > > On Mar 28, 2011, at 10:55 AM, Christoph Bartoschek wrote: > > > >> Am 28.03.2011 16:30, schrieb Dejan Muhamedagic: > >>> Hi, > >>> > >>> On Mon, Mar 21, 2011 at 11:33:49PM +0100, Christoph Bartoschek wrote: > >>>> Hi, > >>>> > >>>> I am testing a NFS failover setup. During the tests I created a > >>>> split-brain situation and now node A thinks it is primary and uptodate > >>>> while node B thinks that it is Outdated. > >>>> > >>>> crm_mon however does not indicate any error to me. Why is this the case? > >>>> I expect to see anything that shows me the degraded status. How can this > >>>> be fixed? > >>> > >>> The cluster relies on the RA (in this case drbd) to report any > >>> problems. Do you have a monitor operation defined for that > >>> resource? > >> > >> I have the resource defined as: > >> > >> primitive p_drbd ocf:linbit:drbd \ > >> params drbd_resource="home-data" > >> op monitor interval="15" role="Master" \ > >> op monitor interval="30" role="Slave" > >> > >> Is this a correct monitor operation?
Yes, though you should also add timeout specs. > > Just out of curiosity, you do have ms resource defined? > > > > ms ms_p_drbd p_drbd \ > > meta master-max="1" master-node-max="1" clone-max="2" > > clone-node-max="1" notify="true" > > > > Because if you do and cluster is not aware of the split-brain, drbd RA has > > a serious flaw. > > > > I'm sorry. Yes, the ms resource is also defined. Well, I'm really confused. You basically say that the drbd disk gets into a degraded mode (i.e. it detects split brain), but the cluster (pacemaker) never learns about that. Perhaps you should open a bugzilla for this and supply hb_report. Though it's really hard to believe. It's like basic functionality failing. Thanks, Dejan > Christoph > _______________________________________________ > 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
