为什么我的 zipkin 客户端没有连接到我的 zipkin 服务器

Question

依赖 spring-cloud-starter-zipkin，应用程序应该在侦探触发时连接到 zipkin 服务器。我没有启动 zipkin server，所以它应该会抛出一个连接异常。但什么也没发生。而且当我启动zipkin server时，它什么也收不到。

pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>bj.demo</groupId>
    <artifactId>hellozipin</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>hellozipin</name>
    <url>http://maven.apache.org</url>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.13.RELEASE</version>
    </parent>
    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>Edgware.SR3</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-zipkin</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
    </dependencies>
</project>

App.java

package bj.demo;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@SpringBootApplication
@RestController
public class App {
    public static void main(String[] args) {
        SpringApplication.run(App.class, args);
    }

    @RequestMapping("/")
    public Object index() {
        return "hello world";
    }
}

application.properties

logging.level.org.springframework.web.servlet.DispatcherServlet=debug
spring.sleuth.sampler.percentage=1

和日志

2018-06-08 12:27:06.104 DEBUG [-,8e644cefdea9d09c,8e644cefdea9d09c,true] 5454 --- [nio-8080-exec-4] o.s.web.servlet.DispatcherServlet        : DispatcherServlet with name 'dispatcherServlet' processing GET request for [/]
2018-06-08 12:27:06.104 DEBUG [-,8e644cefdea9d09c,8e644cefdea9d09c,true] 5454 --- [nio-8080-exec-4] o.s.web.servlet.DispatcherServlet        : Last-Modified value for [/] is: -1
2018-06-08 12:27:06.105 DEBUG [-,8e644cefdea9d09c,8e644cefdea9d09c,true] 5454 --- [nio-8080-exec-4] o.s.web.servlet.DispatcherServlet        : Null ModelAndView returned to DispatcherServlet with name 'dispatcherServlet': assuming HandlerAdapter completed request handling
2018-06-08 12:27:06.105 DEBUG [-,8e644cefdea9d09c,8e644cefdea9d09c,true] 5454 --- [nio-8080-exec-4] o.s.web.servlet.DispatcherServlet        : Successfully completed request

Answer 1

当我将项目根日志级别更改为 "debug" 时，我看到了一些来自 zipkin 的错误报告。然后我意识到我使用的 zipkin 服务器非常非常旧。 zipkin API 调用返回 404.

当我将我的 zipkin 服务器更新到最新版本时。成功了。

为什么我的 zipkin 客户端没有连接到我的 zipkin 服务器

Why my zipkin client do not connect to my zipkin server

java

spring

zipkin

spring-cloud

spring-cloud-sleuth