> > > > > Hi All, > > > > I'm running Pacemaker on Centos7 > > Name : pcs > > Version : 0.9.169 > > Release : 3.el7.centos.3 > > Architecture: x86_64 > > > > > > I'm performing some cluster failover tests in a 3 node cluster. We have > 3 resources in the cluster. > > I was trying to see if I could get it working if 2 nodes fail at > different times. I'd like the 3 resources to then run on one node. > > > > The quorum options I've configured are as follows > > [root@node1 ~]# pcs quorum config > > Options: > > auto_tie_breaker: 1 > > last_man_standing: 1 > > last_man_standing_window: 10000 > > wait_for_all: 1 > > > > [root@node1 ~]# pcs quorum status > > Quorum information > > ------------------ > > Date: Wed Aug 30 11:20:04 2023 > > Quorum provider: corosync_votequorum > > Nodes: 3 > > Node ID: 1 > > Ring ID: 1/1538 > > Quorate: Yes > > > > Votequorum information > > ---------------------- > > Expected votes: 3 > > Highest expected: 3 > > Total votes: 3 > > Quorum: 2 > > Flags: Quorate WaitForAll LastManStanding AutoTieBreaker > > > > Membership information > > ---------------------- > > Nodeid Votes Qdevice Name > > 1 1 NR node1 (local) > > 2 1 NR node2 > > 3 1 NR node3 > > > > If I stop the cluster services on node 2 and 3, the groups all failover > to node 1 since it is the node with the lowest ID > > But if I stop them on node1 and node 2 or node1 and node3, the cluster > fails. > > > > I tried adding this line to corosync.conf and I could then bring down > the services on node 1 and 2 or node 2 and 3 but if I left node 2 until > last, the cluster failed > > auto_tie_breaker_node: 1 3 > > > > This line had the same outcome as using 1 3 > > auto_tie_breaker_node: 1 2 3 > > > > So I'd like it to failover when any combination of two nodes fail but > I've only had success when the middle node isn't last. > > > > Use fencing. Quorum is not a replacement for fencing. With (reliable) > fencing you can simply run pacemaker with no-quorum-policy=ignore. > > The practical problem is that usually the last resort that will work > in all cases is SBD + suicide and SBD cannot work without quorum. > > Ah I forgot to mention I do have fencing setup, which connects to Vmware Virtualcenter. Do you think it's safe to set that no-quorum-policy=ignore? Thanks David
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