Exploring Built-in Telemetry in Phoenix Framework

The content provides a comprehensive overview of telemetry in the Phoenix framework, highlighting its role in improving the performance and reliability of software applications. It explains what telemetry is and its significance in making internal operations visible externally, allowing developers to take action based on data. The article guides readers through creating a dummy Phoenix application named Brock, demonstrating how to leverage Phoenix's built-in telemetry tooling. It covers setting up custom metrics, emitting telemetry events, and monitoring application performance using a dashboard that aggregates and displays various metrics. The content also touches on distributed telemetry within Elixir clusters, enhancing insights into application behavior across multiple instances. Overall, the piece advocates for proactive monitoring and customization of telemetry to fit unique business needs, while also emphasizing the usability and power of the BEAM ecosystem.