4

Thank you a lot for your response!

Interestingly, I can’t see mongod.log file. I launch mongodb pod terminal, then go to /var/log/mongodb/ and that is an empty directory.
I can see that mongo operator has its own logs but particulalry DB does not.

Yes, service itself does not lose internal connection. It looks like external connection to jumphost is timeouting. However, routes, port forwarding, firewall rules look fine. It also works after restart but after some time timeouts randomly (then I need to restart both statefulset of mongodb and jumphost to access DB via url I mentioned.