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
<!--zipkin相关依赖 --> <dependency> <groupId>io.zipkin.java</groupId> <artifactId>zipkin-autoconfigure-ui</artifactId> </dependency> <dependency> <groupId>io.zipkin.java</groupId> <artifactId>zipkin-server</artifactId> </dependency> <!--集成消息中间件 --> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-stream-binder-rabbit</artifactId> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-sleuth-zipkin-stream</artifactId> </dependency> <!--mysql jdbc --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-jdbc</artifactId> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> </dependency>
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
<!--zipkin相关依赖 --> <dependency> <groupId>io.zipkin.java</groupId> <artifactId>zipkin-autoconfigure-ui</artifactId> </dependency> <dependency> <groupId>io.zipkin.java</groupId> <artifactId>zipkin-server</artifactId> </dependency> <!--集成消息中间件 --> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-stream-binder-rabbit</artifactId> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-sleuth-zipkin-stream</artifactId> </dependency> <!-- 支持Elasticsearch 2.x - 6.x --> <!--以下依赖用 <version>2.3.1</version>报错 --> <dependency> <groupId>io.zipkin.java</groupId> <artifactId>zipkin-autoconfigure-storage-elasticsearch-http</artifactId> <version>1.14.3</version> </dependency>
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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