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go-jaeger-demo's Introduction

项目介绍

这是一个 Jaeger 链路追踪的 Demo,里面包括 5 个 Service 端,如图所示:

API 端为: go-gin-api

5 个 Service 端 Demo 分别是:

听(listen)

  • 端口:9901
  • 通讯:gRPC

说(speak)

  • 端口:9902
  • 通讯:gRPC

读(read)

  • 端口:9903
  • 通讯:gRPC

写(write)

  • 端口:9904
  • 通讯:gRPC

唱(sing)

  • 端口:9905
  • 通讯:HTTP

其中服务之间又相互调用:

  • Speak 服务,又调用了 Listen 服务 和 Sing 服务。
  • Read 服务,又调用了 Listen 服务 和 Sing 服务。
  • Write 服务,又调用了 Listen 服务 和 Sing 服务。

咱们要实现就是 API 调用 5 个服务的链路,以及服务与服务之间相互调用的链路。

运行

1、部署 jaeger 服务

下载地址:https://www.jaegertracing.io/download/

我的电脑是 macOS 选择 -> Binaries -> macOS

下载后并解压,会发现以下文件:

  • example-hotrod
  • jaeger-agent
  • jaeger-all-in-one
  • jaeger-collector
  • jaeger-ingester
  • jaeger-query

进入到解压后的目录执行:

./jaeger-all-in-one

目测启动后,访问地址:http://localhost:16686/

看到下图,表示启动成功。

2、启动 Service 服务

// 启动 Listen 服务
cd listen && go run main.go

// 启动 Speak 服务
cd speak && go run main.go

// 启动 Read 服务
cd read && go run main.go

// 启动 Write 服务
cd write && go run main.go

// 启动 Sing 服务
cd sing && go run main.go

3、启动 API 服务

// 启用 go-gin-api 服务
cd go-gin-api && go run main.go

4、访问路由

访问 API 项目:http://127.0.0.1:9999/jaeger_test

效果

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