In this chapter you learned a lot about monitoring. We saw what to check for in the archive and we have seen how to interpret PostgreSQL-internal system views. Finally we saw which processes to check for at the operating-system level.

In general, it is recommended to use professional monitoring software such as Zabbix, Nagios, and others, which is capable of running automated tests and issuing notifications.

All those checks together will provide you with a pretty nice safety net for your database setup.

The next chapter is dedicated exclusively to high availability. You will be introduced to important concepts related to high availability and we will guide you through the fundamentals.