介绍

Zipkin是一个分布式跟踪系统，用来收集微服务架构中的时序数据以用于调用链分析。Zipkin提供了In-Memory、MySql、Elasticsearch等存储方式。

安装配置

服务端安装
开发环境中，我们可以安装一个In-Memory的Zipkin

docker run -d -p 9411:9411 openzipkin/zipkin

安装完成后打开：http://localhost:9411/zipkin/可见：
在这里插入图片描述
更多Docker部署方式见：zipkin-docker

.NET下的使用

Install-Package zipkin4net -Version 1.3.0
Install-Package zipkin4net.middleware.aspnetcore -Version 1.3.0

在ServiceA中添加注册代码：

public void RegisterZipkinTrace(IApplicationBuilder app, ILoggerFactory loggerFactory, IHostApplicationLifetime lifetime)
{
    lifetime.ApplicationStarted.Register(() =>
    {
        TraceManager.SamplingRate = 1.0f;
        var logger = new TracingLogger(loggerFactory, "zipkin4net");
        var httpSender = new HttpZipkinSender("http://localhost:9411", "application/json");
        var tracer = new ZipkinTracer(httpSender, new JSONSpanSerializer(), new Statistics());
        var consoleTracer = new zipkin4net.Tracers.ConsoleTracer();

        TraceManager.RegisterTracer(tracer);
        TraceManager.RegisterTracer(consoleTracer);
        TraceManager.Start(logger);
    });

    lifetime.ApplicationStopped.Register(() => TraceManager.Stop());
    app.UseTracing("service_a");
}

配置到管道中

public void Configure(IApplicationBuilder app,ILoggerFactory loggerFactory, IHostApplicationLifetime lifetime)
{
    RegisterZipkinTrace(app, loggerFactory, lifetime);
}