1.简介
最近需要将线上跑的多个容器中的项目迁出,其中有一个项目有两个war包,迁出之后部署在同一个虚机上,造成服务启动异常,报出Unable to register MBean [HikariDataSource (null)] with key ‘dataSource’的错误,大概意思就是已经注册了数据源不能重复在注册了,造成了冲突。
2.报错
严重: ContainerBase.addChild: start: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/pushdata]] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:162) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:899) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:875) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:652) at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:1092) at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1984) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) Caused by: org.springframework.jmx.export.UnableToRegisterMBeanException: Unable to register MBean [HikariDataSource (null)] with key 'dataSource'; nested exception is javax.management.InstanceAlreadyExistsException: com.zaxxer.hikari:name=dataSource,type=HikariDataSource at org.springframework.jmx.export.MBeanExporter.registerBeanNameOrInstance(MBeanExporter.java:628) at org.springframework.jmx.export.MBeanExporter.registerBeans(MBeanExporter.java:550) at org.springframework.jmx.export.MBeanExporter.afterSingletonsInstantiated(MBeanExporter.java:432) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:781) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:867) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:543) at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:693) at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:360) at org.springframework.boot.SpringApplication.run(SpringApplication.java:303) at org.springframework.boot.web.support.SpringBootServletInitializer.run(SpringBootServletInitializer.java:154) at org.springframework.boot.web.support.SpringBootServletInitializer.createRootApplicationContext(SpringBootServletInitializer.java:134) at org.springframework.boot.web.support.SpringBootServletInitializer.onStartup(SpringBootServletInitializer.java:87) at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:169) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5632) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145) ... 10 more Caused by: javax.management.InstanceAlreadyExistsException: com.zaxxer.hikari:name=dataSource,type=HikariDataSource at com.sun.jmx.mbeanserver.Repository.addMBean(Repository.java:437) at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerWithRepository(DefaultMBeanServerInterceptor.java:1898) at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerDynamicMBean(DefaultMBeanServerInterceptor.java:966) at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerObject(DefaultMBeanServerInterceptor.java:900) at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerMBean(DefaultMBeanServerInterceptor.java:324) at com.sun.jmx.mbeanserver.JmxMBeanServer.registerMBean(JmxMBeanServer.java:522) at org.springframework.jmx.support.MBeanRegistrationSupport.doRegister(MBeanRegistrationSupport.java:195) at org.springframework.jmx.export.MBeanExporter.registerBeanInstance(MBeanExporter.java:674) at org.springframework.jmx.export.MBeanExporter.registerBeanNameOrInstance(MBeanExporter.java:618) ... 25 more 一月 07, 2021 9:16:30 上午 org.apache.catalina.startup.HostConfig deployWAR 严重: Error deploying web application archive /var/lib/tomcat/webapps/pushdata.war java.lang.IllegalStateException: ContainerBase.addChild: start: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/pushdata]] at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:903) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:875) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:652) at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:1092) at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1984) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) 一月 07, 2021 9:16:30 上午 org.apache.catalina.startup.HostConfig deployWAR
3.处理方法
在webapps各项目的application.yml
配置文件增加如下配置项:
# jmx 默认域,用于区分项目
spring.jmx.default-domain=项目名称
(名称任意,建议项目名称)
例如以下配置文件:
vim /usr/share/tomcat/webapps/cupboard/WEB-INF/classes/application.yml
spring: jmx.default-domain: cupboard #增加此配置项,多个项目不要重复即可 datasource: url: jdbc:mysql://itbkz.com:3306/cupboard?useUnicode=true&characterEncoding=UTF-8&useSSL=false&serverTimezone=UTC username: 用户名 password: 密码 driver-class-name: com.mysql.jdbc.Driver type: com.zaxxer.hikari.HikariDataSource hikari: minimum-idle: 5 maximum-pool-size: 15 auto-commit: true idle-timeout: 30000 pool-name: DateHikariCP1 max-lifetime: 1800000 connection-timeout: 30000 connection-test-query: SELECT 1 http: encoding: charset: utf-8 enabled: true force: true thymeleaf: mode: LEGACYHTML5 servlet: content-type: text/html cache: false mybatis: mapper-locations: classpath:mapper/*Mapper.xml config-location: classpath:mapper/mybatis-config.xml logging: level: root: info #### com.itbkz.query.cupboardquery.dao: debug file: /data/tomcat7/logs/cupboard_info.log pattern: console: "%d %green([%t]) %magenta(%-5p) %cyan(%c) - %m%n" file: "%d %thread %-5level -%file:%line- %msg%n"
以上配置文件已经过处理或修改