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openzipkin/zipkin

This system is a distributed tracing platform, specifically the Zipkin server and its associated libraries, designed to collect, store, and visualize trace data from various sources. It supports ingesting spans via Kafka, RabbitMQ, ActiveMQ, Pulsar, and Scribe, and persists them in backends like Elasticsearch, OpenSearch, Cassandra, and MySQL. The system provides a modernized server interface with a redesigned UI, health checks, and self-tracing capabilities, all built on a refactored architecture using Armeria and Spring Boot 3.

47.2

Weak · 6 August 2026

45k

lines of production code

Java

with TypeScript, JavaScript

2

bus factor · 213 authors in all

3

measurements over time

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How it got here

2015–2018 · v2 storage and modernization

This period focused on implementing the v2 storage API across backends like Elasticsearch, Cassandra, and MySQL, while migrating the server infrastructure to Armeria and Spring Boot 3. The work also introduced new core domain models, collector components, and a modernized frontend, supported by extensive test coverage.

39 changes

2019 · Spring Boot autoconfiguration and testing

This period focused on consolidating the Zipkin server's architecture by introducing Spring Boot autoconfiguration for various storage backends and collectors, such as Cassandra, Elasticsearch, Kafka, and RabbitMQ. The work also included significant improvements to test coverage, adding comprehensive integration and benchmark tests for these new configurations and existing components.

26 changes

2020–2025 · build and test infrastructure modernization

This period focused on standardizing the project's build, deployment, and testing environments through the introduction of portable shell scripts and Docker-based test images. Key additions included support for multi-architecture builds, GPG signing, and new integration test containers for Elasticsearch, OpenSearch, Cassandra, ActiveMQ, and Eureka, alongside a new JUnit 5 testing module and Pulsar collector.

15 changes

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About this page

  • The description of this project is derived from its own commit history, not from its README.
  • The score is its highest published measurement, taken on 6 August 2026 at a pinned commit. It is not a live figure and does not change until the project is measured again.
  • Measured at commit 878ce2a1fa — the exact code this score is about.
  • Scored under rubric rubric-2026.08.19. Score the same commit under that rubric and you get the same number.
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