Understanding Jaeger
Jaeger is an open-source, end-to-end distributed tracing system used for monitoring and troubleshooting complex Microservices environments. Originally developed by Uber Technologies, it was later donated to the Cloud Native Computing Foundation (CNCF) and has since become a graduated project.
Core Capabilities
The primary purpose of Jaeger is to provide visibility into the flow of requests across different services. It excels at root cause analysis, service dependency mapping, and performance/latency optimization. By implementing Distributed Tracing, developers can visualize the entire lifecycle of a request as it traverses various components of a Cloud Native architecture.
Architecture and Components
The Jaeger architecture consists of several key components:
- Jaeger Agent: A network daemon that listens for spans sent over UDP.
- Jaeger Collector: Receives traces from agents and runs them through a processing pipeline.
- Jaeger Query: A service that retrieves traces from storage and hosts a UI to display them.
- Storage: Support for various backends like Elasticsearch, Cassandra, and Kafka.
Integration and Standards
Jaeger is fully compatible with the OpenTelemetry standard, which is the industry successor to OpenTracing and OpenCensus. This ensures that organizations can adopt a vendor-neutral approach to Observability.
For more information, visit the official Jaeger website or explore the source code on GitHub.