CAT 作为服务端项目基础组件，提供了 Java, C/C++, Node.js, Python, Go 等多语言客户端，已经在美团点评的基础架构中间件框架（MVC框架，RPC框架，数据库框架，缓存框架等，消息队列，配置系统等）深度集成，为美团点评各业务线提供系统丰富的性能指标、健康状况、实时告警等。

Zipkin is a distributed tracing system

APM, (Application Performance Management) tool for large-scale distributed systems.

📌 a missing Java std lib(simple & 0-dependency) for framework/middleware, provide an enhanced InheritableThreadLocal that transmits values between threads even using thread pooling components.

Java distributed tracing implementation compatible with Zipkin backend services.

Distributed tracing for spring cloud

an open source solution to application performance monitoring for java server applications

Istio Tutorial for https://dn.dev/master

OpenMessaging Runtime Interface for Java

erlang tracing for the masses

A stats collection and distributed tracing framework

Datadog APM client for Java

An agent component for the Java system

Automon combines the power of AOP (AspectJ) with monitoring or logging tools you already use to declaratively trace and monitor your Java code, the JDK, and 3rd party libraries.

Support for deploying Jaeger into Kubernetes

Distributed tracing for Spring Boot, Cloud and other Spring projects

Simple performance framework for java

PerfMark is a High Performance Tracing Library.

Automatic instrumentation for 3rd-party libraries in Java applications with OpenTracing.