>>> Ken Gaillot <[email protected]> schrieb am 25.04.2017 um 17:38 in >>> Nachricht <[email protected]>: > On 04/25/2017 09:32 AM, Bratislav Petkovic wrote: >> I want to make active/active cluster with two physical servers. >> >> On the servers are installed: oraclelinux-release-7.2-1.0.5.el7.x86_64, >> >> Pacemaker 1.1.13-10.el7, Corosync Cluster Engine, version '2.3.4', >> >> pcs 0.9.143. Cluster starts without a problem and I create a resource >> >> ClusterIP that is in the same subnet as the IP addresses of the servers. >> >> After creating I access ClusterIP without problems, but I clone ClusterIP >> >> I can no longer access the this IP. >> >> I did everything according to instructions from clusterlab. >> >> Each server has two network cards that are on the teaming with LACP. >> >> >> >> Best regards, >> >> >> >> Bratislav Petkovic > > IPaddr2 cloning depends on a special feature called multicast MAC. On > the host side, this is done via iptables' clusterip capability. However > not all Ethernet switches support multicast MAC (or the administrator > disabled it), so that is a possible cause.
Exactly: In our environment clusterIPs never worked reliable. I think the description of the RA should mention the requirements to avoid confused users, because it's not obvious what the RA really does. > > > _______________________________________________ > Users mailing list: [email protected] > http://lists.clusterlabs.org/mailman/listinfo/users > > Project Home: http://www.clusterlabs.org > Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf > Bugs: http://bugs.clusterlabs.org _______________________________________________ Users mailing list: [email protected] http://lists.clusterlabs.org/mailman/listinfo/users Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs: http://bugs.clusterlabs.org
