zipkin的mysql配置

绝地灬酷狼 2022-06-01 07:45 522阅读 0赞

# 如何配置zipkin使用mysql数据库 #

最近因为项目需要在看zipkin（关于应用程序性能监控的话题本文不展开讨论，只是介绍zipkin的数据存储配置）。
    zipkin默认使用内存模式存储数据，一旦系统重启或者关闭就再也找不到数据库，这对于学习和演示系统比较方便，但是对生产环境显然是不可接受的，zipkin提供了多种数据持久存储方式，例如cassandra、cassandra3、elasticsearch、mysql。由于本人比较了解mysql同时项目中大多使用mysql数据库，就选择使用mysql数据库。
    参考https://github.com/openzipkin/zipkin/tree/master/zipkin-storage/mysql 和https://github.com/openzipkin/zipkin/blob/master/zipkin-server/src/main/resources/zipkin-server-shared.yml 以及https://github.com/openzipkin/zipkin/blob/master/zipkin-server/src/main/java/zipkin/server/ZipkinServerConfiguration.java

**第一步**，  
我们需要在数据创建zipkin使用的数据库， zipkin默认连接数据库zipkin， 所以我们可以直接创建name为zipkin的数据库。然后在该数据库创建表[https://github.com/openzipkin/zipkin/tree/master/zipkin-storage/mysql][https_github.com_openzipkin_zipkin_tree_master_zipkin-storage_mysql] 中有详细内容，最主要的是到导入[https://github.com/openzipkin/zipkin/blob/master/zipkin-storage/mysql/src/main/resources/mysql.sql][https_github.com_openzipkin_zipkin_blob_master_zipkin-storage_mysql_src_main_resources_mysql.sql] 文件 （mysql中如何使用sql文件创建表格，不在本文介绍中，可百度或者谷歌).

**第二步**，  
根据[https://github.com/openzipkin/zipkin/blob/master/zipkin-server/src/main/resources/zipkin-server-shared.yml][https_github.com_openzipkin_zipkin_blob_master_zipkin-server_src_main_resources_zipkin-server-shared.yml] 以及[https://github.com/openzipkin/zipkin/blob/master/zipkin-server/src/main/java/zipkin/server/ZipkinServerConfiguration.java][https_github.com_openzipkin_zipkin_blob_master_zipkin-server_src_main_java_zipkin_server_ZipkinServerConfiguration.java]

创建对应的环境变量，例如根据ZipkinServerConfiguration.java， 我们可以知道环境变量zipkin.storage.type是获取存储类型的， 因此我们可以在启动zipkin的shell或者windows中设置环境变量zipkin.storage.type=mysql， 实际设置环境变量STORAGE\_TYPE=mysql也是可以的

static final class StorageTypeMemAbsentOrEmpty implements Condition { 
        @Override public boolean matches(ConditionContext condition, AnnotatedTypeMetadata ignored) {
          String storageType = condition.getEnvironment().getProperty("zipkin.storage.type");
          if (storageType == null) return true;
          storageType = storageType.trim();
          if (storageType.isEmpty()) return true;
          return storageType.equals("mem");
        }
    }

根据zipkin.storage.type我们知道mysql host和port都有默认值，user和pass需要设置，根据实际情况我们设置了MYSQL\_USER=yang MYSQL\_PASS=xxxx（密码设置为自己的实际密码，此处用xxx代替）

mysql:
          host: ${ MYSQL_HOST:localhost}
          port: ${ MYSQL_TCP_PORT:3306}
          username: ${ MYSQL_USER:}
          password: ${ MYSQL_PASS:}
          db: ${ MYSQL_DB:zipkin}
          max-active: ${ MYSQL_MAX_CONNECTIONS:10}
    use-ssl: ${ MYSQL_USE_SSL:false}

**第三步**，  
在设置了第二部环境变量的shell中或者windows的cmd中启动zipkin。  
java -jar zipkin-server-2.4.3-exec.jar > out.txt

因为zipkin是springboot程序也可以通过启动命令行设置环境变量  
java -jar zipkin-server-2.4.3-exec.jar –STORAGE\_TYPE=mysql –MYSQL\_DB=zipkin –MYSQL\_USER=yang –MYSQL\_PASS=xxx

![这里写图片描述][SouthEast]

日志中可以发现  
2018-01-24 10:53:42.511 INFO 4360 — \[ main\] o.s.j.e.a.AnnotationMBeanExporter : Registering beans for JMX exposure on startup  
2018-01-24 10:53:42.521 INFO 4360 — \[ main\] o.s.j.e.a.AnnotationMBeanExporter : Bean with name ‘mysqlDataSource’ has been autodetected for JMX exposure  
2018-01-24 10:53:42.521 INFO 4360 — \[ main\] o.s.j.e.a.AnnotationMBeanExporter : Located MBean ‘mysqlDataSource’: registering with JMX server as MBean \[com.zaxxer.hikari:name=**mysqlDataSource**,type=HikariDataSource\]  
2018-01-24 10:53:42.531 INFO 4360 — \[ main\] o.s.c.support.DefaultLifecycleProcessor : Starting beans in phase 0  
2018-01-24 10:53:42.701 INFO 4360 — \[ main\] b.c.e.u.UndertowEmbeddedServletContainer : Undertow started on port(s) 9411 (http)  
2018-01-24 10:53:42.711 INFO 4360 — \[ main\] zipkin.server.ZipkinServer : Started ZipkinServer in 10.232 seconds (JVM running for 11.114)  
2018-01-24 10:54:22.104 INFO 4360 — \[ XNIO-2 I/O-1\] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Starting…  
2018-01-24 10:54:22.296 INFO 4360 — \[ XNIO-2 I/O-1\] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Start completed.

检查数据库和 zipkin web ui [http://localhost:9411/zipkin/][http_localhost_9411_zipkin]

## ![这里写图片描述][SouthEast 1] ##

web UI

![这里写图片描述][SouthEast 2]

简要说明一下服务调用背景：有四个服务server1，到service4， 其中service1一方面直接调用了service4，同时又调用了service2， service2调用了service3和server4. 所以就如截图所示的，service1直接到service4， service1直接到service2， service2直接到service3和service4.

关于这个例子可以参考zipkin官方的[https://github.com/openzipkin/brave-webmvc-example][https_github.com_openzipkin_brave-webmvc-example] 以及[https://github.com/liaokailin/zipkin][https_github.com_liaokailin_zipkin]

[https_github.com_openzipkin_zipkin_tree_master_zipkin-storage_mysql]: https://github.com/openzipkin/zipkin/tree/master/zipkin-storage/mysql
[https_github.com_openzipkin_zipkin_blob_master_zipkin-storage_mysql_src_main_resources_mysql.sql]: https://github.com/openzipkin/zipkin/blob/master/zipkin-storage/mysql/src/main/resources/mysql.sql
[https_github.com_openzipkin_zipkin_blob_master_zipkin-server_src_main_resources_zipkin-server-shared.yml]: https://github.com/openzipkin/zipkin/blob/master/zipkin-server/src/main/resources/zipkin-server-shared.yml
[https_github.com_openzipkin_zipkin_blob_master_zipkin-server_src_main_java_zipkin_server_ZipkinServerConfiguration.java]: https://github.com/openzipkin/zipkin/blob/master/zipkin-server/src/main/java/zipkin/server/ZipkinServerConfiguration.java
[SouthEast]: /images/20220601/755e8360c1584488a150e9cec48bccd4.png
[http_localhost_9411_zipkin]: http://localhost:9411/zipkin/
[SouthEast 1]: /images/20220601/eebb866b23464d59821e4f0ad54134f4.png
[SouthEast 2]: /images/20220601/65ad5fc2c4054dccbe2ed39be0c75911.png
[https_github.com_openzipkin_brave-webmvc-example]: https://github.com/openzipkin/brave-webmvc-example
[https_github.com_liaokailin_zipkin]: https://github.com/liaokailin/zipkin