[Pacemaker] pacemaker on different subnet machines

Andrew Beekhof andrew at beekhof.net
Sun Feb 16 19:44:29 EST 2014

On 25 Jan 2014, at 12:55 am, Parveen Jain <parveenjain at live.com> wrote:

> Hi All,
>   Can there be any problem if we install pacemaker/corosync on different subnets(for a simple two machine setup cluster) ?

Corosync uses multicast by default which I could easily imagine would not like this kind of setup.
Perhaps look up the cman documentation for configuring udpu (aka. unicast)

> I installed my pacemaker for machine and another one on But when I run "pcs status", both the nodes shows "himself" as online and "peer node: as offline ?
> I had not yet configured any particular services yet. Just installed the pacemaker/corosync on RHEL6.5 with folloiwng commands:
> [ONE] # ccs -f /etc/cluster/cluster.conf --createcluster pacemaker1 
>  [ONE] # ccs -f /etc/cluster/cluster.conf --addnode node1 
> [ONE] # ccs -f /etc/cluster/cluster.conf --addnode node2
> [ONE] # ccs -f /etc/cluster/cluster.conf --addfencedev pcmk agent=fence_pcmk 
>  [ONE] # ccs -f /etc/cluster/cluster.conf --addmethod pcmk-redirect node1 
> [ONE] # ccs -f /etc/cluster/cluster.conf --addmethod pcmk-redirect node2 
>  [ONE] # ccs -f /etc/cluster/cluster.conf --addfenceinst pcmk node1 pcmk-redirect port=node1 
> ONE] # ccs -f /etc/cluster/cluster.conf --addfenceinst pcmk node2 pcmk-redirect port=node2
> [ALL] # echo "CMAN_QUORUM_TIMEOUT=0" >> /etc/sysconfig/cman
>  [ALL] # service cman start 
> [ALL] # service pacemaker start
> [ONE] # pcs property set stonith-enabled=false
> [ONE] # pcs property set no-quorum-policy=ignore
> and after these steps, I run "pcs status" which is giving me this problem.
> (both machines are pinging well with each other and there is no issue with the connectivity)
> Thanks,
> Parveen
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