Service link tracking & service monitoring

Service Link Tracking

background

Micro-service is famous for its micro-service. In the actual development process, it involves hundreds of thousands of services. The invocation of services caused by network requests is extremely complex.

When requests are unavailable or slow down, the need to find out the fault service point in time has become a major difficulty in micro-service maintenance.

Service link tracking technology emerges as the times require.

ZipKin

Zipkin is an open source distributed tracking system, which is open source by Twitter. It is dedicated to collecting service timing data to solve the delay problem in the micro-service architecture, including data collection, storage, search and display.

Each service reports timing data to zipkin. Zipkin generates dependency graph through Zipkin UI according to the invocation relationship, showing how many tracking requests pass through each service. The system allows developers to collect and analyze data easily through a Web front-end, such as the processing time of each user's request for service, which is convenient. The bottleneck in the monitoring system.

Zipkin provides pluggable data storage: In-Memory, MySql, Cassandra and Elastic search. Next, in order to facilitate direct storage in-Memory mode, Elastic search is recommended for production.

quick get start

Modify the Zuul cluster code: https://github.com/HCJ-shadow/Zuul-Gateway-Cluster-Nginx

Create zipkin-server
pom[zipkin]

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.1.7.RELEASE</version>
    <relativePath/> <!-- lookup parent from repository -->
</parent>

<properties>
    <java.version>1.8</java.version>
    <spring-cloud.version>Greenwich.SR2</spring-cloud.version>
</properties>

<dependencies>
    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>

    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-starter-config</artifactId>
    </dependency>
    <!--        Eureka Client startup needs dependency web Modular-->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>

    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-starter-zipkin</artifactId>
    </dependency>

 
</dependencies>

<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-dependencies</artifactId>
            <version>${spring-cloud.version}</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>
    </dependencies>
</dependencyManagement>

<build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
        </plugin>
    </plugins>
</build>

yaml

eureka:
  client:
    serviceUrl:
      defaultZone: http://eureka2001.com:2001/eureka/,http://eureka2002.com:2002/eureka/,http://eureka2003.com:2003/eureka/
server:
  port: 9001
spring:
  application:
    name: zipkin-server

Main startup class @EnableZipkinServer

package zkrun.top;


import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import zipkin2.server.internal.EnableZipkinServer;

@EnableEurekaClient
@SpringBootApplication
@EnableZipkinServer
public class App_Zipkin_9001 {
    public static void main(String[] args) {
        SpringApplication.run(App_Zipkin_9001.class,args);
    }

}

Injecting Zipkin monitoring into other services

<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-zipkin</artifactId>
</dependency>

spring:
  zipkin:
    base-url: http://localhost:9001

Visit

localhost:9001

Service monitoring

Create msc-spring boot-admin-10001
pom

<?xml version="1.0" encoding="UTF-8"?>
<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>zkrun.top</groupId>
    <artifactId>msc-springboot-admin-10001</artifactId>
    <version>1.0-SNAPSHOT</version>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.7.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <properties>
        <java.version>1.8</java.version>
        <spring-cloud.version>Greenwich.SR2</spring-cloud.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-config</artifactId>
        </dependency>
        <!--        Eureka Client startup needs dependency web Modular-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-zipkin</artifactId>
        </dependency>

        <dependency>
            <groupId>de.codecentric</groupId>
            <artifactId>spring-boot-admin-starter-server</artifactId>
            <version>2.1.5</version>
        </dependency>

    </dependencies>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${spring-cloud.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>




</project>

yaml

server:
  port: 10001

spring:
  application:
    name: admin-server
  zipkin:
    base-url: http://localhost:9001

eureka:
  client:
    service-url:
      defaultZone: http://eureka2001.com:2001/eureka/,http://eureka2002.com:2002/eureka/,http://eureka2003.com:2003/eureka/
  instance:
    instance-id: admin-server-10001
    prefer-ip-address: true     #Access paths can display IP addresses

management:
  endpoint:
    health:
      show-details: always
  endpoints:
    web:
      exposure:
        include: ["health","info"]

Main class @EnableAdminServer

package zkrun.top;

import de.codecentric.boot.admin.server.config.EnableAdminServer;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;

@SpringBootApplication
@EnableAdminServer
@EnableEurekaClient
public class App_Admin_10001 {
    public static void main(String[] args) {
        SpringApplication.run(App_Admin_10001.class,args);
    }
}

Start Eureka, provider, zuul, zipkin, admin in turn

Visit Eureka

http://localhost:2001/

Visit

http://localhost:10001

Code reference: https://github.com/HCJ-shadow/Zipkin-SpringBoot-Admin

Keywords: Java Spring Maven Apache

Added by Mindwreck on Sat, 24 Aug 2019 15:53:19 +0300

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