zipkin分为服务端和客户端,服务端提供友好的界面去给我们分析依赖以及调用的延时。客户端为服务端提供数据来源。下面准备的服务就是我们的zipkin的客户端。
我准备了两个服务,tarce1和trace2,两个服务都引入了如下依赖:
<dependency>
<groupId>org.springframework.cloudgroupId>
<artifactId>spring-cloud-starter-sleuthartifactId>
dependency>
<dependency>
<groupId>org.springframework.cloudgroupId>
<artifactId>spring-cloud-sleuth-zipkinartifactId>
dependency>
两个服务调用逻辑如下:
trace1-》trace2-》trace1
关于 Zipkin 的服务端,在使用 Spring Boot 2.x 版本后,官方就不推荐自行定制编译了,官方直接提供了编译好的 jar 包来给我们使用,详情请看 upgrade to Spring Boot 2.0 NoClassDefFoundError UndertowEmbeddedServletContainerFactory · Issue #1962 · openzipkin/zipkin · GitHub
现在,官方都不鼓励自行定制服务端,所以我们直接下载官方的zipkinserver就好,cmd直接运行以下语句即可下载:
curl -sSL https://zipkin.io/quickstart.sh | bash -s
PS:windows环境需要安装命令行工具才可以直接执行此语句
zipkin支持多种方式的数据持久化,例如elasticsearch,mysql等,这里列举最熟悉的mysql方式持久化。
我到官网找到了mysql的初始化建表语句,直接新建数据库,运行下面的语句即可:
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;
ALTER TABLE zipkin_dependencies ADD UNIQUE KEY(`day`, `parent`, `child`);
zipkin的服务端也是一个spring boot的应用,所以我们可以在启动时指定其数据库配置,启动语句如下:
java -jar zipkin.jar --STORAGE_TYPE=mysql --MYSQL_HOST=localhost --MYSQL_TCP_PORT=3306 --MYSQL_DB=zipkin --MYSQL_USER=root--MYSQL_PASS=xxxxx
在初始化数据库时,新建的表应该都是空的,调用服务之后我们再去数据库查看数据库表:
在截图时,我已经调用过多次了,所以数据库数据会比较多,如果仅有一次可能数据会较少,以上,持久化zipkin数据到mysql数据库成功。