Metrics have become a common concern for developers, testers, operators, DBAs, and even business leaders. Used properly, metrics provide deep insight into what’s happening in your environment, revealing performance hot spots and errors at all stages of the development cycle. But as modern architectures become increasingly complex, and more and more subsystems are delivering metrics, correlating them can be quite a challenge.
About industry trends that affect how we do monitoring
Which metrics (including host and process) to track in a web application
About transactional measures, starting with the user’s click in the browser all the way down to the database
How to correlate metrics properly to gain the maximum benefit from monitoring in development, testing, and production
Harald Zeitlhofer