Observability contains many aspects - metrics, logging, tracing, alerts, and more. There are so many open-source tools to accomplish these tasks but which are considered the right ones? And what are the best practices? In this session, we’ll discuss why observability within distributed systems is essential to understand how your application is performing and ensure reliability at all times. We’ll also review the most popular open-source monitoring tools, and explain the Whys, Whats, and Hows in your observability journey.