In this chapter, you have been introduced to some system views provided by PostgreSQL, which can be used to monitor your system. In addition to that, some basic Nagios modules have been shown. Finally, you have seen how to isolate database instances inside the Linux kernel control groups.

In this book, you have learned all important aspects of PostgreSQL database administration and many important topics have been touched right from indexing to replication and from detecting performance bottlenecks to monitoring. The most important aspects have been discussed hoping to make your daily life with PostgreSQL as simplistic as possible.