Monitoring can mean very different things to different people, and this oftenleads to confusion and misunderstandings. There are many offerings both freesoftware and commercials, and it's not always clear where each fits in thebigger picture. This talk will look a bit at the history of monitoring, andthen into the general categories of Metrics, Logs, Profiling and Distributedtracing and how each of these is important in Cloud-based environment.