Hi, On Wed, Mar 30, 2011 at 09:26:49AM +0100, darren.mans...@opengi.co.uk wrote: > From: Pavel Levshin [mailto:pa...@levshin.spb.ru] > Sent: 25 March 2011 19:50 > To: pacemaker@oss.clusterlabs.org > Subject: Re: [Pacemaker] IPaddr2 Netmask Bug Fix Issue > > > > 25.03.2011 18:47, darren.mans...@opengi.co.uk: > > > > > > We configure a virtual IP on the non-arping lo interface of both servers > and then configure the IPaddr2 resource with lvs_support=true. This RA > will remove the duplicate IP from the lo interface when it becomes > active. Grouping the VIP with ldirectord/LVS we can have the > load-balancer and VIP on one node, balancing traffic to the other node > with failover where both resources failover together. > > > > To do this we need to configure the VIP on lo as a 32 bit netmask but > the VIP on the eth0 interface needs to have a 24 bit netmask. This has > worked fine up until now and we base all of our clusters on this method. > Now what happens is that the find_interface() routine in IPaddr2 doesn't > remove the IP from lo when starting the VIP resource as it can't find it > due to the netmask not matching.
Can you please open a bugzilla and attach hb_report. Thanks, Dejan > Do you really need the address to be deleted from lo? Having two > identical addresses on the Linux machine should not harm, if routing was > not affected. In your case, with /32 netmask on lo, I do not foresee any > problems. > > We use it in this way, i.e. with the address set on lo permanently. > > > -- > Pavel Levshin > > > > > > Thanks Pavel, > > > > However, this means I would have to disable LVS support for the > resource. Which means that to make it work with LVS I have to set > lvs_support to false. > > > > Of course, I'll do whatever it takes on my set up to make it work, but > it's not intuitive for other users. > > > > Regards > > Darren Mansell > > _______________________________________________ > Pacemaker mailing list: Pacemaker@oss.clusterlabs.org > http://oss.clusterlabs.org/mailman/listinfo/pacemaker > > Project Home: http://www.clusterlabs.org > Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf > Bugs: > http://developerbugs.linux-foundation.org/enter_bug.cgi?product=Pacemaker _______________________________________________ Pacemaker mailing list: Pacemaker@oss.clusterlabs.org http://oss.clusterlabs.org/mailman/listinfo/pacemaker Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs: http://developerbugs.linux-foundation.org/enter_bug.cgi?product=Pacemaker
