Jaeger - a Distributed Tracing System

💥💥💥 Jaeger v2 is out! Read the blog post and try it out.

Quick Start

Get Jaeger running in seconds with Docker:

# Run Jaeger all-in-one (includes UI, collector, query, and in-memory storage)
docker run --rm --name jaeger \
  -p 16686:16686 \
  -p 4317:4317 \
  -p 4318:4318 \
  jaegertracing/jaeger:latest

# Access the UI at http://localhost:16686
# Send traces via OTLP: gRPC on port 4317, HTTP on port 4318

For production deployments and more options, see the Getting Started Guide.

Architecture

graph TD
    SDK["OpenTelemetry SDK"] --> |HTTP or gRPC| COLLECTOR
    COLLECTOR["Jaeger Collector"] --> STORE[Storage]
    COLLECTOR --> |gRPC| PLUGIN[Storage Plugin]
    COLLECTOR --> |gRPC/sampling| SDK
    PLUGIN --> STORE
    QUERY[Jaeger Query Service] --> STORE
    QUERY --> |gRPC| PLUGIN
    UI[Jaeger UI] --> |HTTP| QUERY
    subgraph Application Host
        subgraph User Application
            SDK
        end
    end

Jaeger is a distributed tracing platform created by Uber Technologies and donated to Cloud Native Computing Foundation.

See Jaeger documentation for getting started, operational details, and other information.

Jaeger is hosted by the Cloud Native Computing Foundation (CNCF) as the 7th top-level project, graduated in October 2019. See the CNCF Jaeger incubation announcement and Jaeger graduation announcement.

Get Involved

Jaeger is an open source project with open governance. We welcome contributions from the community, and we would love your help to improve and extend the project. Here are some ideas for how to get involved. Many of them do not even require any coding.

Version Compatibility Guarantees

Since Jaeger uses many components from the OpenTelemetry Collector we try to maintain configuration compatibility between Jaeger releases. Occasionally, configuration options in Jaeger (or in Jaeger v1 CLI flags) can be deprecated due to usability improvements, new functionality, or changes in our dependencies. In such situations, developers introducing the deprecation are required to follow these guidelines.

In short, for a deprecated configuration option, you should expect to see the following message in the documentation or release notes:

(deprecated, will be removed after yyyy-mm-dd or in release vX.Y.Z, whichever is later)

A grace period of at least 3 months or two minor version bumps (whichever is later) from the first release containing the deprecation notice will be provided before the deprecated configuration option can be deleted.

For example, consider a scenario where v2.0.0 is released on 01-Sep-2024 containing a deprecation notice for a configuration option. This configuration option will remain in a deprecated state until the later of 01-Dec-2024 or v2.2.0 where it can be removed on or after either of those events. It may remain deprecated for longer than the aforementioned grace period.

Go Version Compatibility Guarantees

The Jaeger project attempts to track the currently supported versions of Go, as defined by the Go team. Removing support for an unsupported Go version is not considered a breaking change.

Starting with the release of Go 1.21, support for Go versions will be updated as follows:

1. Soon after the release of a new Go minor version N, updates will be made to the build and tests steps to accommodate the latest Go minor version.
2. Soon after the release of a new Go minor version N, support for Go version N-1 will be removed and version N will become the minimum required version.

Note: All importable code has been moved to internal packages, so there is no need to maintain backward compatibility with older compilers (previously version N-1 was used).

Related Repositories

Components

• UI
• Data model

Documentation

• Published: https://www.jaegertracing.io/docs/
• Source: https://github.com/jaegertracing/documentation

Building From Source

See CONTRIBUTING.

Contributing

See CONTRIBUTING.

Thanks to all the people who already contributed!

Maintainers

Rules for becoming a maintainer are defined in the GOVERNANCE document. The official maintainers of the Jaeger project are listed in the MAINTAINERS file. Please use @jaegertracing/jaeger-maintainers to tag them on issues / PRs.

Some repositories under jaegertracing org have additional maintainers.

Project Status Meetings

The Jaeger maintainers and contributors meet regularly on a video call. Everyone is welcome to join, including end users. For meeting details, see https://www.jaegertracing.io/get-in-touch/.

Roadmap

See https://www.jaegertracing.io/docs/roadmap/

Get in Touch

Have questions, suggestions, bug reports? Reach the project community via these channels:

• Slack chat room #jaeger (need to join CNCF Slack for the first time)
• jaeger-tracing mail group
• GitHub issues and discussions

Security

Third-party security audits of Jaeger are available in https://github.com/jaegertracing/security-audits. Please see Issue #1718 for the summary of available security mechanisms in Jaeger.

Adopters

Jaeger as a product consists of multiple components. We want to support different types of users, whether they are only using our instrumentation libraries or full end to end Jaeger installation, whether it runs in production or you use it to troubleshoot issues in development.

Please see ADOPTERS.md for some of the organizations using Jaeger today. If you would like to add your organization to the list, please comment on our survey issue.

Sponsors

The Jaeger project owes its success in open source largely to the Cloud Native Computing Foundation (CNCF), our primary supporter. We deeply appreciate their vital support. Furthermore, we are grateful to Uber for their initial, project-launching donation, and for the continuous contributions of software and infrastructure from 1Password, Codecov.io, Dosu, GitHub, Google Analytics, Netlify, and Oracle Cloud Infrastructure. Thank you for your generous support.

License

Copyright (c) The Jaeger Authors. Apache 2.0 License.