Config/Status commands stopped to respond

[Dmytro O. Redchuk]

Hi masters,

I am running two-nodes cluster (PM v.5.3),
and today I've found that one node stopped to respond to config/status
commands --- VMs in GUI are gray and marked with question mark,
commands like "pvecm status" or "qm list" hung (until ^C).

So, I can login with ssh into that node,
and all VMs seem to be working fine.

Please, is it possible to get it working without any VMs/node restart?

What have I do?

Could not find (or missed) anything useful in logfiles.

Thank you!

-- 
 Dmytro O. Redchuk