Spring cloud中链路跟踪（Sleuth+Zipkin）

Spring Cloud Sleuth为Spring Cloud提供了分布式跟踪的解决方案

Zipkin是分布式跟踪系统，主要功能是收集系统的时序数据，从而追踪微服务框架的系统延时等问题。

 

## 跟踪方式

一种采用原生的sleuth，是http方式。zipkin是其中一种实现方式

一种采用异步的方式，结合kafaka/rabbitmq等第三方中间件实现，提高效率

## 数据存储方式

mysql

Elasticsearch

cassandra

in-momery

（每种方式依赖的jar不同）

 

==》使用http的方式接受消息（zipkin）---Sleuth-server

1、添加依赖

<dependency>

<groupId>io.zipkin.java</groupId>

<artifactId>zipkin-server</artifactId>

</dependency>

<dependency>

<groupId>io.zipkin.java</groupId>

<artifactId>zipkin-autoconfigure-ui</artifactId>

<scope>runtime</scope>

</dependency>

2、启动类添加注解 @EnableZipkinServer

3、配置文件.yml 添加 server.port=9411

-------------------------------------------------------------------------------

微服务整合Zipkin

1、添加依赖

<dependency>

<groupId>org.springframework.cloud</groupId>

<artifactId>spring-cloud-sleuth-zipkin</artifactId>

</dependency>

2、配置文件

 

==》使用中间件接受消息（rabbitMQ）------Sleuth-server

1、添加依赖

<!-- 采用中间件的形式跟踪消息 -->

<dependency>

<groupId>org.springframework.cloud</groupId>

<artifactId>spring-cloud-sleuth-zipkin-stream</artifactId>

</dependency>

<dependency>

<groupId>org.springframework.cloud</groupId>

<artifactId>spring-cloud-starter-stream-rabbit</artifactId>

</dependency>

<dependency>

<groupId>org.springframework.cloud</groupId>

<artifactId>spring-cloud-starter-sleuth</artifactId>

</dependency>

<dependency>

<groupId>io.zipkin.java</groupId>

<artifactId>zipkin-autoconfigure-ui</artifactId>

<scope>runtime</scope>

</dependency>

2、启动类中添加注解 @EnableZipkinStreamServer

3、修改配置文件

server.port=9411

#rabbit config

spring.rabbitmq.host=localhost

spring.rabbitmq.port=5672

spring.rabbitmq.username=guest

spring.rabbitmq.password=guest

-------------------------------------------------------------------------------

微服务整合中间件（XXXX-service）

1、添加依赖

<!-- 采用中间件来接受收集跟踪消息 -->

<dependency>

<groupId>org.springframework.cloud</groupId>

<artifactId>spring-cloud-starter-sleuth</artifactId>

</dependency>

<dependency>

<groupId>org.springframework.cloud</groupId>

<artifactId>spring-cloud-sleuth-stream</artifactId>

</dependency>

<dependency>

<groupId>org.springframework.cloud</groupId>

<artifactId>spring-cloud-starter-stream-rabbit</artifactId>

</dependency>

2、配置文件

spring.rabbitmq.host=localhost

spring.rabbitmq.port=5672

spring.rabbitmq.username=guest

spring.rabbitmq.password=guest

 

 

=======================================================================

==》存储跟踪数据（mysql、Elasticsearch、cassandra、in-momery等）---Sleuth-server

1、添加依赖

<!--保存到数据库需要如下依赖 不同的后端存储对应相应的依赖 -->

<!-- MySql -->

<dependency>

<groupId>io.zipkin.java</groupId>

<artifactId>zipkin-autoconfigure-storage-mysql</artifactId>

</dependency>

 

<!-- Elasticsearch -->

<dependency>

<groupId>io.zipkin.java</groupId> -

<artifactId>zipkin-autoconfigure-storage-elasticsearch-http</artifactId>

<version>1.24.0</version>

<optional>true</optional>

</dependency>

 

<!-- cassandra-->

<dependency>

<groupId>io.zipkin.java</groupId>

<artifactId>zipkin-storage-cassandra</artifactId>

<version>${zipkin.version}</version>

<scope>test</scope>

</dependency>

2、配置文件中添加：

#elasticsearch config

#将跟踪数据存储到Elasticsearch中

zipkin.storage.type=elasticsearch

zipkin.storage.elasticsearch.hosts=127.0.0.1:9200

zipkin.storage.elasticsearch.cluster=elasticsearch

zipkin.storage.elasticsearch.index=zipkin

zipkin.storage.elasticsearch.index-shards=5

zipkin.storage.elasticsearch.index-replicas=1

 

#mysql config

#将跟踪数据存储到Mysql中

zipkin.storage.type=mysql

spring.datasource.schema=classpath:/mysql.sql

spring.datasource.url=jdbc:mysql://${MYSQL_HOST:localhost}:3306/test

spring.datasource.username=root

spring.datasource.password=123456

spring.datasource.initialize=true

spring.datasource.continueOnError=true

spring.sleuth.enabled=false