28.Spring Cloud Sleuth追踪数据存储

前面的演示，ZipkinServer是将数据存储在内存中。这种方式一般不适用于生产环境。因为一直Zipkinserver重启或发生崩溃，就会导致历史数据丢失。

ZipkinServer支持多后端存储。列如mysql,Elasticsearch.其实现是通过消息中间件rabbitmq,kafka收集数据，然后存储到mysql中。这里只需要改造ZipkinServer，各个微服务和之前通过消息中间件收集数据一样。

ZipkinServer-mysql

pom.xml

		
			io.zipkin.java
			zipkin-autoconfigure-ui
		
		
			io.zipkin.java
			zipkin-server
		
		
		
			org.springframework.cloud
			spring-cloud-stream-binder-rabbit
		
		
			org.springframework.cloud
			spring-cloud-sleuth-zipkin-stream
		
		
		
			org.springframework.boot
			spring-boot-starter-jdbc
		
		
			mysql
			mysql-connector-java
		

application.properties

server.port=9411
#注册中心地址
eureka.client.serviceUrl.defaultZone=http://testhost:8000/eureka/,http://testhost2:8001/eureka/
#把客户端的检测检测交给actuator来完成
eureka.client.healthcheck.enabled=true
spring.application.name=zipkin-server
#rabiitmq
spring.rabbitmq.host=localhost
spring.rabbitmq.port=5672
spring.rabbitmq.username=springcloud
spring.rabbitmq.password=123456
#将trace信息持久化到mysql中
spring.datasource.schema=classpath:/mysql.sql
spring.datasource.url=jdbc:mysql://localhost:3306/bootdb
spring.datasource.username=root
spring.datasource.password=123456
spring.datasource.initialize=true
spring.datasource.continueOnError=true
spring.sleuth.enabled=false
zipkin.storage.type=mysql
  

mysql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,
  `error_count` BIGINT
) ENGINE=InnoDB ROW_FORMAT=COMPRESSED CHARACTER SET=utf8 COLLATE utf8_general_ci;
 

启动类

package com.niugang;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.cloud.sleuth.zipkin.stream.EnableZipkinStreamServer;


/**
 * zipserver启动类
 * @author niugang
 *
 */
@SpringBootApplication
@EnableDiscoveryClient
@EnableZipkinStreamServer
public class Application {
	public static void main(String[] args) {
		SpringApplication.run(Application.class, args);
	}
}

启动注册中心，zipkinserver,各个微服务。查看数据库。

生成三张存储表

追踪添加的数据

ZipkinServer-Elasticsearch

在使用Elasticsearch是一定要和springcloud spring-cloud-sleuth zipkin版本兼容。用Elasticsearch6.x因为去掉了string类型，追踪的数据无法存储，所以又切回到了Elasticsearch2.3

1.pom.xml

		
			io.zipkin.java
			zipkin-autoconfigure-ui
		
		
			io.zipkin.java
			zipkin-server
		
		
		
			org.springframework.cloud
			spring-cloud-stream-binder-rabbit
		
		
			org.springframework.cloud
			spring-cloud-sleuth-zipkin-stream
		
		
		
		
			io.zipkin.java
			zipkin-autoconfigure-storage-elasticsearch-http
			1.14.3
		

2.application.properties

server.port=9411
#注册中心地址
eureka.client.serviceUrl.defaultZone=http://testhost:8000/eureka/,http://testhost2:8001/eureka/
#把客户端的检测检测交给actuator来完成
eureka.client.healthcheck.enabled=true
spring.application.name=zipkin-server
#rabiitmq
spring.rabbitmq.host=localhost
spring.rabbitmq.port=5672
spring.rabbitmq.username=springcloud
spring.rabbitmq.password=123456
#将trace信息持久化到elasticsearch中
#zipkin.autoconfigure.storage.elasticsearch.http.ZipkinElasticsearchHttpStorageProperties 配置属性
zipkin.storage.type=elasticsearch
zipkin.storage.elasticsearch.cluster=elasticsearch
zipkin.storage.elasticsearch.hosts=http://localhost:9200
#默认index就是zipkin
zipkin.storage.elasticsearch.index=zipkin

3.启动类

package com.niugang;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.cloud.sleuth.zipkin.stream.EnableZipkinStreamServer;


/**
 * zipserver启动类
 * @author niugang
 *
 */
@SpringBootApplication
@EnableDiscoveryClient
@EnableZipkinStreamServer
public class Application {
	public static void main(String[] args) {
		SpringApplication.run(Application.class, args);
	}
}

启动Elasticsearch,rabbitmq,注册中心，各个微服务发送请求，产生追踪数据。访问http://localhost:9200/_plugin/head/

   

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