In this chapter, we had a look at some of the many options available for monitoring our deployed code: Nagios to monitor the states of hosts and services; Munin, Ganglia, and Graphite to graph statistics from our hosts; and Log4j and the ELK stack to keep track of log information.
In the next chapter, Chapter 9, Issue Tracking we will look at tools that help with workflows within the development organization, such as issue trackers.