Telemetry
Telemetry is the automated collection and transmission of data from remote or inaccessible sources to an IT system for monitoring and analysis. It involves gathering metrics, logs, and events from applications, infrastructure, or devices to provide insights into performance, usage, and health. This data is typically used for observability, debugging, and operational decision-making in software systems.
Developers should learn and use telemetry to build reliable, scalable, and user-friendly applications by enabling real-time monitoring, proactive issue detection, and data-driven improvements. It is essential in distributed systems, cloud-native applications, and DevOps practices for tracking performance metrics (e.g., latency, error rates), understanding user behavior, and ensuring system uptime. Use cases include application performance monitoring (APM), infrastructure monitoring, and A/B testing analytics.