目录：
ZipKin介绍ZipKin架构实现流程ZipKin介绍
Zipkin是一款开源的分布式实时数据追踪系统（Distributed Tracking System），基于 Google Dapper的论文设计而来，由 Twitter 公司开发贡献。其主要功能是聚集来自各个异构系统的实时监控数据。
ZipKin架构
ZipKin可以分为两部分，一部分是zipkin server，用来作为数据的采集存储、数据分析与展示；zipkin client是zipkin基于不同的语言及框架封装的一些列客户端工具，这些工具完成了追踪数据的生成与上报功能，架构如下：
实现流程
1、下载：
下载地址：/remote_content?g=io.zipkin.java&a=zipkin-server&v=LATEST&c=exec
2、运行：java -jar zipkin-server-2.8.3-exec.jar
3、访问：zipkin Server 运行后默认的访问地址：http://localhost:9411
4、调用链分析
启动4个服务，调用关系如下：brave-webmvc-example服务调用brave-webmvc-example2，brave-webmvc-example2分别调用brave-webmvc-example3和brave-webmvc-example4（代码地址），链路关系如下图：
要看清数据结构，首先要清楚数据结构的意思，看下图：
右上角JSON节目可以看到4个服务的调用数据如下图：
[{"traceId": "a4aa11d855699355","id": "a4aa11d855699355","name": "get /start","timestamp": 1526110753393795,"duration": 3873359,"annotations": [{"timestamp": 1526110753393795,"value": "sr","endpoint": {"serviceName": "brave-webmvc-example","ipv4": "192.168.1.101"}},{"timestamp": 1526110757267154,"value": "ss","endpoint": {"serviceName": "brave-webmvc-example","ipv4": "192.168.1.101"}}],"binaryAnnotations": [{"key": "ca","value": true,"endpoint": {"serviceName": "","ipv6": "::1","port": 64570}},{"key": "http.method","value": "GET","endpoint": {"serviceName": "brave-webmvc-example","ipv4": "192.168.1.101"}},{"key": "http.path","value": "/start","endpoint": {"serviceName": "brave-webmvc-example","ipv4": "192.168.1.101"}},{"key": "mvc.controller.class","value": "HomeController","endpoint": {"serviceName": "brave-webmvc-example","ipv4": "192.168.1.101"}},{"key": "mvc.controller.method","value": "start","endpoint": {"serviceName": "brave-webmvc-example","ipv4": "192.168.1.101"}}]},{"traceId": "a4aa11d855699355","id": "cf49951d471ac7c5","name": "get /foo","parentId": "a4aa11d855699355","timestamp": 1526110753583404,"duration": 3650640,"annotations": [{"timestamp": 1526110753583404,"value": "cs","endpoint": {"serviceName": "brave-webmvc-example","ipv4": "192.168.1.101"}},{"timestamp": 1526110754327066,"value": "sr","endpoint": {"serviceName": "brave-webmvc-example2","ipv4": "192.168.1.101"}},{"timestamp": 1526110757234044,"value": "cr","endpoint": {"serviceName": "brave-webmvc-example","ipv4": "192.168.1.101"}},{"timestamp": 1526110757235819,"value": "ss","endpoint": {"serviceName": "brave-webmvc-example2","ipv4": "192.168.1.101"}}],"binaryAnnotations": [{"key": "ca","value": true,"endpoint": {"serviceName": "","ipv4": "127.0.0.1","port": 64578}},{"key": "http.method","value": "GET","endpoint": {"serviceName": "brave-webmvc-example","ipv4": "192.168.1.101"}},{"key": "http.method","value": "GET","endpoint": {"serviceName": "brave-webmvc-example2","ipv4": "192.168.1.101"}},{"key": "http.path","value": "/foo","endpoint": {"serviceName": "brave-webmvc-example","ipv4": "192.168.1.101"}},{"key": "http.path","value": "/foo","endpoint": {"serviceName": "brave-webmvc-example2","ipv4": "192.168.1.101"}},{"key": "mvc.controller.class","value": "HomeController","endpoint": {"serviceName": "brave-webmvc-example2","ipv4": "192.168.1.101"}},{"key": "mvc.controller.method","value": "foo","endpoint": {"serviceName": "brave-webmvc-example2","ipv4": "192.168.1.101"}}]},{"traceId": "a4aa11d855699355","id": "c2c029d693ecc49b","name": "get /bar","parentId": "cf49951d471ac7c5","timestamp": 1526110754397322,"duration": 1583187,"annotations": [{"timestamp": 1526110754397322,"value": "cs","endpoint": {"serviceName": "brave-webmvc-example2","ipv4": "192.168.1.101"}},{"timestamp": 1526110755367168,"value": "sr","endpoint": {"serviceName": "brave-webmvc-example3","ipv4": "192.168.1.101"}},{"timestamp": 1526110755810759,"value": "ss","endpoint": {"serviceName": "brave-webmvc-example3","ipv4": "192.168.1.101"}},{"timestamp": 1526110755980509,"value": "cr","endpoint": {"serviceName": "brave-webmvc-example2","ipv4": "192.168.1.101"}}],"binaryAnnotations": [{"key": "ca","value": true,"endpoint": {"serviceName": "","ipv4": "127.0.0.1","port": 64583}},{"key": "http.method","value": "GET","endpoint": {"serviceName": "brave-webmvc-example2","ipv4": "192.168.1.101"}},{"key": "http.method","value": "GET","endpoint": {"serviceName": "brave-webmvc-example3","ipv4": "192.168.1.101"}},{"key": "http.path","value": "/bar","endpoint": {"serviceName": "brave-webmvc-example2","ipv4": "192.168.1.101"}},{"key": "http.path","value": "/bar","endpoint": {"serviceName": "brave-webmvc-example3","ipv4": "192.168.1.101"}},{"key": "mvc.controller.class","value": "HomeController","endpoint": {"serviceName": "brave-webmvc-example3","ipv4": "192.168.1.101"}},{"key": "mvc.controller.method","value": "bar","endpoint": {"serviceName": "brave-webmvc-example3","ipv4": "192.168.1.101"}}]},{"traceId": "a4aa11d855699355","id": "e3968cec8747ce95","name": "get /tar","parentId": "cf49951d471ac7c5","timestamp": 1526110756017988,"duration": 1194871,"annotations": [{"timestamp": 1526110756017988,"value": "cs","endpoint": {"serviceName": "brave-webmvc-example2","ipv4": "192.168.1.101"}},{"timestamp": 1526110757081683,"value": "sr","endpoint": {"serviceName": "brave-webmvc-example4","ipv4": "192.168.1.101"}},{"timestamp": 1526110757212859,"value": "cr","endpoint": {"serviceName": "brave-webmvc-example2","ipv4": "192.168.1.101"}},{"timestamp": 1526110757222145,"value": "ss","endpoint": {"serviceName": "brave-webmvc-example4","ipv4": "192.168.1.101"}}],"binaryAnnotations": [{"key": "ca","value": true,"endpoint": {"serviceName": "","ipv4": "127.0.0.1","port": 64584}},{"key": "http.method","value": "GET","endpoint": {"serviceName": "brave-webmvc-example4","ipv4": "192.168.1.101"}},{"key": "http.method","value": "GET","endpoint": {"serviceName": "brave-webmvc-example2","ipv4": "192.168.1.101"}},{"key": "http.path","value": "/tar","endpoint": {"serviceName": "brave-webmvc-example4","ipv4": "192.168.1.101"}},{"key": "http.path","value": "/tar","endpoint": {"serviceName": "brave-webmvc-example2","ipv4": "192.168.1.101"}},{"key": "mvc.controller.class","value": "HomeController","endpoint": {"serviceName": "brave-webmvc-example4","ipv4": "192.168.1.101"}},{"key": "mvc.controller.method","value": "tar","endpoint": {"serviceName": "brave-webmvc-example4","ipv4": "192.168.1.101"}}]}]
zipkin高端代码链接
