I'm currently not at work but I will add our zabbix_server.conf later.

We had some problems with our PG installation lately where the DB isn't accessible anymore. We would have to stop zabbix-server but as it didn't respond after a long wait we had to force-shutdown the Zabbix Server VM.
I think it's taking longer the "bigger" the Zabbix Server is? Thought I had no chance to try that out with another installation that our production one.

Steps to reproduce:

• Stop the Postgres DB so that Zabbix Server is reporting errors ...
• Try systemctl stop zabbix-server

Result:
Zabbix-Server wont stop at all or it takes very long.

Expected:
Zabbix-Server should stop quickly.