I hate having to reboot the server, but sometimes you gotta do what you gotta do but that drives the need for redundancy when running for infrastructure requiring no downtime.
When it comes to blockchain things get tricky with keys, need to sort out some next shit to manage the keys remotely so multiple clients can remote sign if the system detect a client is down or responding too slowly.
The trick is getting around exposing the keys to the clients while still letting their scrip trigger a signing