zipkin+elasticsearch全链路跟踪(springcloud)

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公司最近搭建springcloud架构,我在做sleuth+zipkin做链路跟踪时发现zipkin将trace存在内存中,而一旦访问量上去,zipkin就容易被压崩,网上搜索资料发现基本都是kafka+zk+elasticsearch做解决方案的,如图



这种方案在各种springcloud书上和各种文章上有很多说明,再次不多做叙述,而我没有采用这个方案,第一是觉得无端侵入kafka或者其他消息队列和zk,略有些重,以kafka为例,吞吐量基本是每秒百万级数的,而做链路跟踪时本身就是异步写入的,所以觉得再应用消息队列意义不大(当然了,使用消息队列可以解耦)第二是想应用eureka的注册发现机制,在链路调用时用Thrift写tracer传入zipkin,可以做集群部署提高可用性。综合考虑下决定使用zipkin,内存使用elasticsearch做存储,不使用过多使用中间件,配置和代码如下:

server端

pom.xml

<dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>io.zipkin.java</groupId><artifactId>zipkin</artifactId><version>1.28.1</version></dependency><dependency><groupId>io.zipkin.java</groupId><artifactId>zipkin-server</artifactId><version>1.28.1</version></dependency><dependency><groupId>io.zipkin.java</groupId><artifactId>zipkin-autoconfigure-ui</artifactId><version>1.28.1</version></dependency><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-sleuth</artifactId></dependency><dependency><groupId>io.zipkin.java</groupId><artifactId>zipkin-autoconfigure-storage-elasticsearch-http</artifactId><version>1.23.0</version><optional>true</optional></dependency></dependencies><dependencyManagement><dependencies><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-dependencies</artifactId><version>Dalston.RELEASE</version><type>pom</type><scope>import</scope></dependency></dependencies></dependencyManagement>


application.properties

server.port=63500spring.sleuth.enabled=false#采样率,推荐0.1,百分之百收集的话存储可能扛不住spring.sleuth.sampler.percentage=1zipkin.storage.StorageComponent=elasticsearchzipkin.storage.type=elasticsearch#可以做集群,我用的本地测试没有部署elastic集群zipkin.storage.elasticsearch.hosts=127.0.0.1:9200zipkin.storage.elasticsearch.cluster=elasticsearchzipkin.storage.elasticsearch.index=zipkinzipkin.storage.elasticsearch.index-shards=5zipkin.storage.elasticsearch.index-replicas=1maxHttpHeaderSize=8192

ZipkinApplication.java

@SpringBootApplication@EnableZipkinServer@EnableAutoConfigurationpublic class ZipkinApplication {public static void main(String[] args) {SpringApplication.run(ZipkinApplication.class, args);}}



client端

pom文件:加入

<dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-sleuth-zipkin</artifactId></dependency>

application.properties:加入

spring.zipkin.base-url=http://127.0.0.1:63500spring.sleuth.sampler.percentage=1.0

补充:链路跟踪基本就差不多了,另外需要配合日志收集可以考虑配合ELK等做日志收集分析,需要用EUREKA做服务治理也可以补上服务发现等。(有问题意见欢迎补充)



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