it seems corosync 3 is not stable while using knet with unicast (proxmox wiki mentioned unicast support maximum 4 nodes only)
from first 8 pages in this box https://forum.proxmox.com/forums/proxmox-ve-installation-and-configuration.16/ we can see many cluster crashed, proxmox reboot/failed. Some of them mentioned this trouble did not happen before upgrade to 6.x
What do you think?
Unicast is a technology for sending messages to a single network destination. In corosync, unicast is implemented as UDP-unicast (UDPU). Due to increased network traffic (compared to multicast) the number of supported nodes is limited, do not use it with more that 4 cluster nodes.
from first 8 pages in this box https://forum.proxmox.com/forums/proxmox-ve-installation-and-configuration.16/ we can see many cluster crashed, proxmox reboot/failed. Some of them mentioned this trouble did not happen before upgrade to 6.x
What do you think?