Professional OpenTelemetry: Modern Observability for Production Systems

Learn OpenTelemetry the way it is used in real systems: traces, metrics, logs, context propagation, instrumentation and production observability.Modern observability is no longer just about checking dashboards or collecting logs. In distributed architectures, microservices, APIs, Kubernetes, cloud platforms and high-demand systems, you need to understand what is happening inside your applications, how a request travels across services, where latency appears, which errors repeat, and which signals actually help you make operational decisions.Professional OpenTelemetry is a complete technical guide to understanding and applying OpenTelemetry from its foundations to real-world production use.This book explains how the OpenTelemetry ecosystem works, which problems it solves, how traces, metrics and logs relate to each other, and how the Collector, SDKs, exporters, processors and observability backends fit together in a modern telemetry architecture.Throughout the book, you will learn how to: - Understand what OpenTelemetry is and why it has become the de facto standard for observability.- Differentiate traces, metrics and logs, and know when each signal provides value.- Design useful instrumentation for real applications without turning telemetry into noise.- Understand the full signal lifecycle: generation, context propagation, processing, export and analysis.- Use the OpenTelemetry Collector as a central piece of an observable architecture.- Work with exporters, receivers, processors, sampling, attributes, resources and semantic conventions.- Integrate OpenTelemetry with systems such as Prometheus, Grafana, Tempo, Jaeger, Loki and other compatible backends.- Apply production practices around cardinality, cost, performance, privacy, security and data governance.- Avoid common mistakes when instrumenting microservices, APIs, workers, queues and cloud-native systems. This is not a shallow recipe book or a collection of isolated commands. Its goal is to help you understand OpenTelemetry as an engineering discipline: what to observe, why to observe it, how to capture it and how to turn those signals into useful operational decisions. This book is for you if: - You work in backend development, DevOps, SRE, platform engineering, cloud or software architecture.- You want better visibility into distributed systems.- You already use tools such as Prometheus, Grafana, Jaeger, Tempo or Loki and want to understand how OpenTelemetry fits in.- You need to instrument applications for production, not just build a local demo.- You want to reduce diagnosis time and make better operational decisions based on real telemetry data. A practical and professional guide to turning OpenTelemetry into a real operational advantage for production systems.