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Hi, after a few weeks of testing, this issue has been resolved. We've restructured our clusters network infrastructure as well as we adjusted the corosync parameters. We also found a few firmware issues regarding the network cards in our clusters, which also had an impact on the instability...

Thank you, I will test the corosync config you've provided. In addition we currently trying to rearrange our network situation today. Maybe this helps :)

We have a seperate network for proxmox only, which includes corosync. The proxmox nodes also get internet connection over this link. There is no congestion, that we're aware of. For example, we ran a couple iperf3 tests over the link for about 30 minutes with full speed and there were no...

Also corosync reports, that the token was lost/not received constantly. I attached a part of the syslog, when the error was showing up.

Hi, we're running on Proxmox 6.2. When we add a certain amount of nodes to the cluster, proxmox starts to loose connection to all of the nodes and the cluster completly shuts down. All nodes are still available over ssh. This state remains, until we remove about 1-2 nodes from the cluster...