Monitoring an individual service

When working with a distributed mission-critical application in production or in any production-like environment, then it is of utmost importance to gain as much insight as possible into the inner workings of those applications. Have you ever had a chance to look into the cockpit of an airplane or the command center of a nuclear power plant? Both the airplane and the power plant are samples of highly complex systems that deliver mission-critical services. If a plane crashes or a power plant shuts down unexpectedly, a lot of people are negatively affected, to say the least. Thus the cockpit and the command center are full of instruments showing the current or past state of some part of the system. What you see is the visual representation of some sensors that are placed in strategic parts of the system, and constantly collect data such as the temperature...