链路追踪 zipkin(mysql存储)（一）

前言：

2.x 之后官方不再建议自定义zipkin，官方提供的zipkin.jar包：https://dl.bintray.com/openzipkin/maven/io/zipkin/java/zipkin-server;
当然官方打包好的jar集合了各种场景和配置不一定适合当前项目环境，所以大部分情况下还是需要自己搭建服务，话不多说，直接开干：

环境：

jdk:1.8
spring boot: 2.0.9
mysql: 5.7
zipkin-server: 2.11.13

建立zipkin-server 项目

• pom.xml

    
        1.8
        2.11.13
        8.0.13
        3.11.11
    

    
        
            org.springframework.boot
            spring-boot-starter
        

        
            io.zipkin.java
            zipkin-server
            ${zipkin.version}
        

        
            io.zipkin.java
            zipkin-autoconfigure-ui
            ${zipkin.version}
        

        
            org.springframework.boot
            spring-boot-starter-jdbc
        

        
        
            org.jooq
            jooq
            ${jooq.version}
        

        
            io.zipkin.java
            zipkin-autoconfigure-storage-mysql
            ${zipkin.version}
        

        
            mysql
            mysql-connector-java
            ${mysql-connector.version}
        
    

• application.yml

server:
  port: 9411

spring:
  application:
    name: zipkin-server
  datasource:
    url: jdbc:mysql://127.0.0.1:3306/zipkin?useUnicode=true&characterEncoding=utf-8&useSSL=false
    username: root
    password: root
    driver-class-name: com.mysql.cj.jdbc.Driver
    type: com.zaxxer.hikari.HikariDataSource
    hikari:
      maximum-pool-size: 20        #连接池中允许的最大连接数。缺省值：10；推荐的公式：((core_count * 2) + effective_spindle_count)
      minimum-idle: 10             #连接池最小连接数
      connection-timeout: 30000    #连接超时时间 --30秒
      idle-timeout: 60000          #连接空闲时间 --1分钟
      max-lifetime: 300000         #连接生命周期，建议设置比数据库超时时长少30秒以上 --5分钟
      validation-timeout: 3000
      login-timeout: 5
      connection-test-query: SELECT 1

management:
  metrics:
    web:
      server:
        auto-time-requests: false

zipkin:
  storage:
    type: mysql

• 启动类配置 注意需要注解@EnableZipkinServer 开启zipkin服务

package com.server.cloud.zipkin;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import zipkin2.server.internal.EnableZipkinServer;

@SpringBootApplication
@EnableZipkinServer
public class ZipkinServerApplication {

    public static void main(String[] args) {
        SpringApplication.run(ZipkinServerApplication.class, args);
    }

}

• sql脚本

CREATE TABLE IF NOT EXISTS zipkin_spans (
`trace_id_high` BIGINT NOT NULL DEFAULT 0 COMMENT 'If non zero, this means the trace uses 128 bit traceIds instead of 64 bit',
`trace_id` BIGINT NOT NULL,
`id` BIGINT NOT NULL,
`name` VARCHAR(255) NOT NULL,
`parent_id` BIGINT,
`debug` BIT(1),
`start_ts` BIGINT COMMENT 'Span.timestamp(): epoch micros used for endTs query and to implement TTL',
`duration` BIGINT COMMENT 'Span.duration(): micros used for minDuration and maxDuration query'
) ENGINE=InnoDB ROW_FORMAT=COMPRESSED CHARACTER SET=utf8 COLLATE utf8_general_ci;

ALTER TABLE zipkin_spans ADD UNIQUE KEY(`trace_id_high`, `trace_id`, `id`) COMMENT 'ignore insert on duplicate';
ALTER TABLE zipkin_spans ADD INDEX(`trace_id_high`, `trace_id`, `id`) COMMENT 'for joining with zipkin_annotations';
ALTER TABLE zipkin_spans ADD INDEX(`trace_id_high`, `trace_id`) COMMENT 'for getTracesByIds';
ALTER TABLE zipkin_spans ADD INDEX(`name`) COMMENT 'for getTraces and getSpanNames';
ALTER TABLE zipkin_spans ADD INDEX(`start_ts`) COMMENT 'for getTraces ordering and range';

CREATE TABLE IF NOT EXISTS zipkin_annotations (
`trace_id_high` BIGINT NOT NULL DEFAULT 0 COMMENT 'If non zero, this means the trace uses 128 bit traceIds instead of 64 bit',
`trace_id` BIGINT NOT NULL COMMENT 'coincides with zipkin_spans.trace_id',
`span_id` BIGINT NOT NULL COMMENT 'coincides with zipkin_spans.id',
`a_key` VARCHAR(255) NOT NULL COMMENT 'BinaryAnnotation.key or Annotation.value if type == -1',
`a_value` BLOB COMMENT 'BinaryAnnotation.value(), which must be smaller than 64KB',
`a_type` INT NOT NULL COMMENT 'BinaryAnnotation.type() or -1 if Annotation',
`a_timestamp` BIGINT COMMENT 'Used to implement TTL; Annotation.timestamp or zipkin_spans.timestamp',
`endpoint_ipv4` INT COMMENT 'Null when Binary/Annotation.endpoint is null',
`endpoint_ipv6` BINARY(16) COMMENT 'Null when Binary/Annotation.endpoint is null, or no IPv6 address',
`endpoint_port` SMALLINT COMMENT 'Null when Binary/Annotation.endpoint is null',
`endpoint_service_name` VARCHAR(255) COMMENT 'Null when Binary/Annotation.endpoint is null'
) ENGINE=InnoDB ROW_FORMAT=COMPRESSED CHARACTER SET=utf8 COLLATE utf8_general_ci;
ALTER TABLE zipkin_annotations ADD UNIQUE KEY(`trace_id_high`, `trace_id`, `span_id`, `a_key`, `a_timestamp`) COMMENT 'Ignore insert on duplicate';
ALTER TABLE zipkin_annotations ADD INDEX(`trace_id_high`, `trace_id`, `span_id`) COMMENT 'for joining with zipkin_spans';
ALTER TABLE zipkin_annotations ADD INDEX(`trace_id_high`, `trace_id`) COMMENT 'for getTraces/ByIds';
ALTER TABLE zipkin_annotations ADD INDEX(`endpoint_service_name`) COMMENT 'for getTraces and getServiceNames';
ALTER TABLE zipkin_annotations ADD INDEX(`a_type`) COMMENT 'for getTraces';
ALTER TABLE zipkin_annotations ADD INDEX(`a_key`) COMMENT 'for getTraces';
ALTER TABLE zipkin_annotations ADD INDEX(`trace_id`, `span_id`, `a_key`) COMMENT 'for dependencies job';
CREATE TABLE IF NOT EXISTS zipkin_dependencies (
`day` DATE NOT NULL,
`parent` VARCHAR(255) NOT NULL,
`child` VARCHAR(255) NOT NULL,
`call_count` BIGINT
) ENGINE=InnoDB ROW_FORMAT=COMPRESSED CHARACTER SET=utf8 COLLATE utf8_general_ci;
ALTER TABLE zipkin_dependencies ADD UNIQUE KEY(`day`, `parent`, `child`);

启动服务...此时一个简单的基于MySQL的链路追踪zipkin服务配置完成：

zipkin.jpg