[ClusterLabs] node1 and node2 communication time question

[Tomas Jelinek]

Hi,

It seems that you are using pcs 0.9.x. That is an old and unmaintained 
version. I really recommend updating it.

I can see that you disabled stonith. This is really a bad practice. 
Cluster cannot and will not function properly without working stonith.

What makes you think nodes are communicating only every 30 seconds and 
not often? Setting 'monitor interval=30s' certainly doesn't do such thing.

Regards,
Tomas


Dne 09. 08. 22 v 8:23 권오성 napsal(a):
> Hello.
> I installed linux ha on raspberry pi as below.
> 1) 1) sudo apt-get install pacemaker pcs fence-agents resource-agents
> 2) Host Settings
> 3) 3) sudo reboot
> 4) 4) sudo passwd hacluster
> 5) 5) sudo systemctl enable pcsd, sudo systemctl start pcsd, sudo 
> systemctl enable pacemaker
> 6) 6) sudo pcs cluster destroy
> 7) 7) sudo pcs cluster auth <node1> <node2> -u hacluster -p <password 
> for hacluster>
> 8) 8) sudo pcs cluster setup --name <clusterName> <node1> <node2>
> 9) 9) sudo pcs cluster start —all, sudo pcs cluster enable —all
> 10) sudo pcs property set stonith-enabled=false
> 11) sudo pcs status
> 12) sudo pcs resource create Virtual IP ocf:heartbeat:IPaddr2 
> ip=<address> cidr_netmask=24op monitor interval=30s
> 
> So, I've set it up like this way.
> By the way, is it correct that node1 and node2 communicate every 30 
> seconds and node2 will notice after 30 seconds when node1 dies?
> Or do we communicate every few seconds?
> And can node1 and node2 reduce communication time?
> What I want is node1 and node2 to communicate every 10 ms and switch as 
> fast as possible.
> Please answer.
> Thank you.
> 
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