how many nodes are supported by proxmox 5.2 in one cluster?

[tobias.bi]

now , I have build a proxmox 5.2 cluseter, there are 13 physic machine in this cluseter, and 340 virtual machines .
I read some blogs that say the proxmox cluster have problem when the number of physic machines over 16, or ther number of the virtual machines over 1000.
So I want to konw the exact number of the proxmox cluster.

 

[LnxBil]

So I want to konw the exact number of the proxmox cluster.

official documentation stats:

There’s no explicit limit for the number of nodes in a cluster. In practice, the actual possible node count may be limited by the host and network performance. Currently (2021), there are reports of clusters (using high-end enterprise hardware) with over 50 nodes in production.

For virtual machines this depends on what kind of load they serve and how big the nodes are.