用了几天，今天发现突然无法访问了，通过命令发现:
result-hub和metersphere的状态一直都是 health: starting，重启后仍然是这个状态，
查看日志发现有错误：
SQL State : 08S01
Error Code : 0
Message : Communications link failure
The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:788)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:768)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:146)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:509)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1441)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:600)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:523)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:336)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:289)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:334)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:204)
at org.springframework.context.support.PostProcessorRegistrationDelegate.registerBeanPostProcessors(PostProcessorRegistrationDelegate.java:277)
at org.springframework.context.support.AbstractApplicationContext.registerBeanPostProcessors(AbstractApplicationContext.java:808)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:611)
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:146)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:752)
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:439)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:318)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1361)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1350)
at io.metersphere.Application.main(Application.java:30)
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘flywayInitializer’ defined in class path resource [org/springframework/boot/autoconfigure/flyway/FlywayAutoConfiguration$FlywayConfiguration.class]: Unable to obtain connection from database: Communications link failure
The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
SQL State : 08S01
Error Code : 0
Message : Communications link failure
The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1808)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:601)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:523)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:336)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:289)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:334)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:312)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)
at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:254)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1631)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1519)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:785)
... 20 common frames omitted
Caused by: org.flywaydb.core.internal.exception.FlywaySqlException: Unable to obtain connection from database: Communications link failure
The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
SQL State : 08S01
Error Code : 0
Message : Communications link failure
The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
at org.flywaydb.core.internal.jdbc.JdbcUtils.openConnection(JdbcUtils.java:71)
at org.flywaydb.core.internal.jdbc.JdbcConnectionFactory.<init>(JdbcConnectionFactory.java:76)
at org.flywaydb.core.FlywayExecutor.execute(FlywayExecutor.java:137)
at org.flywaydb.core.Flyway.migrate(Flyway.java:176)
at org.springframework.boot.autoconfigure.flyway.FlywayMigrationInitializer.afterPropertiesSet(FlywayMigrationInitializer.java:66)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1855)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1804)
... 32 common frames omitted
Caused by: com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure
The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:165)
at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:55)
at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:837)
at com.mysql.cj.jdbc.ConnectionImpl.(ConnectionImpl.java:420)
at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:238)
at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:180)
at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:137)
at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:360)
at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:202)
at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:461)
at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:550)
at com.zaxxer.hikari.pool.HikariPool.(HikariPool.java:98)
at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:111)
at org.flywaydb.core.internal.jdbc.JdbcUtils.openConnection(JdbcUtils.java:59)
… 38 common frames omitted
Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure
The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
at java.base/jdk.internal.reflect.DirectConstructorHandleAccessor.newInstance(Unknown Source)
at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Unknown Source)
at java.base/java.lang.reflect.Constructor.newInstance(Unknown Source)
at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:52)
at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:95)
at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:140)
at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:156)
at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:79)
at com.mysql.cj.NativeSession.connect(NativeSession.java:142)
at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:961)
at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:825)
… 49 common frames omitted
Caused by: java.net.NoRouteToHostException: Host is unreachable
at java.base/sun.nio.ch.Net.pollConnect(Native Method)
at java.base/sun.nio.ch.Net.pollConnectNow(Unknown Source)
at java.base/sun.nio.ch.NioSocketImpl.timedFinishConnect(Unknown Source)
at java.base/sun.nio.ch.NioSocketImpl.connect(Unknown Source)
at java.base/java.net.SocksSocketImpl.connect(Unknown Source)
at java.base/java.net.Socket.connect(Unknown Source)
at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:144)
at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:53)
… 52 common frames omitted
不知道如何解决，求助
本人采用的离线安装方式，在一台机器上进行的默认部署，未改动任何设置