Jaeger, a distributed tracing system

Welcome to Jaeger's documentation portal! Below, you'll find information for beginners and experienced Jaeger users.

If you can't find what you are looking for, or have an issue not covered here, we'd love to hear from you either on Github, Gitter chat, or on our mailing list.


Jaeger, inspired by Dapper and OpenZipkin, is a distributed tracing system released as open source by Uber Technologies. It can be used for monitoring microservice-based architectures:

  • Distributed context propagation
  • Distributed transaction monitoring
  • Root cause analysis
  • Service dependency analysis
  • Performance / latency optimization

We published a blog post, Evolving Distributed Tracing at Uber, where we explain the history and reasons for the architectural choices made in Jaeger.


  • OpenTracing compatible data model and instrumentation libraries
  • Uses consistent upfront sampling with individual per service/endpoint probabilities
  • Adaptive sampling (coming soon)
  • Post-collection data processing pipeline (coming soon)

Technical Specs

  • Backend components implemented in Go
  • React/Javascript UI
  • Cassandra 3.x, ElasticSearch as persistent storage (more storage backends coming soon)

Quick Start

See running a docker all in one image.


Traces View

Traces View

Trace Detail View

Detail View