Понимание и исправление «CommunicationException: сбой связи». с HikariCP

Question

Я столкнулся с исключением Exception during keep alive check, that means the connection (com.mysql.jdbc.JDBC4Connection@5d8f3404) must be dead. CommunicationsException: Communications link failure., и я не уверен, как его исправить.

Я использую Spring Cloud Connector вместе с HikariCP.

Мой конфиг выглядит следующим образом:

@Bean 
    public DataSource dataSource() { 
     int dbcpMaxActive = 10; 
     int dbcpMaxWait = 200; 
     PoolConfig poolConfig = new PoolConfig(dbcpMaxActive, dbcpMaxWait); 
     ConnectionConfig connectionConfig = new ConnectionConfig("sessionVariables=sql_mode='ANSI';characterEncoding=UTF-8"); 
     DataSourceConfig serviceConfig = new DataSourceConfig(poolConfig, connectionConfig); 
     return connectionFactory().dataSource("CLEARDB_DATABASE", serviceConfig); 
    } 

Вот полный StackTrace:

WARN com.zaxxer.hikari.pool.HikariPool - Exception during keep alive check, that means the connection (com.mysql.jdbc.JDBC4Connection@5d8f3404) must be dead. 
548563684499435525 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1 com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure 
548563684499435532 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1 The last packet successfully received from the server was 429,069 milliseconds ago. The last packet sent successfully to the server was 19 milliseconds ago. 
548563684499435536 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) 
548563684499435541 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) 
548563684499435545 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) 
548563684499435548 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at java.lang.reflect.Constructor.newInstance(Constructor.java:422) 
548563684499435550 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at com.mysql.jdbc.Util.handleNewInstance(Util.java:377) 
548563684499435553 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1036) 
548563684499435556 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3427) 
548563684499435558 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3327) 
548563684499435562 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3814) 
548563684503629826 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2435) 
548563684503629828 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at com.mysql.jdbc.ConnectionImpl.pingInternal(ConnectionImpl.java:3971) 
548563684503629829 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at com.mysql.jdbc.ConnectionImpl.ping(ConnectionImpl.java:3951) 
548563684503629830 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at com.mysql.jdbc.StatementImpl.doPingInstead(StatementImpl.java:1509) 
548563684503629831 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at com.mysql.jdbc.StatementImpl.executeQuery(StatementImpl.java:1395) 
548563684503629832 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at com.zaxxer.hikari.pool.HikariPool.isConnectionAlive(HikariPool.java:451) 
548563684503629833 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at com.zaxxer.hikari.pool.HikariPool.getConnection(HikariPool.java:182) 
548563684503629834 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:108) 
548563684503629836 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at org.hibernate.engine.jdbc.connections.internal.DatasourceConnectionProviderImpl.getConnection(DatasourceConnectionProviderImpl.java:139) 
548563684503629840 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at org.hibernate.internal.AbstractSessionImpl$NonContextualJdbcConnectionAccess.obtainConnection(AbstractSessionImpl.java:380) 
548563684503629843 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.obtainConnection(LogicalConnectionImpl.java:228) 
548563684503629844 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.getConnection(LogicalConnectionImpl.java:171) 
548563684503629846 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at org.hibernate.internal.SessionImpl.connection(SessionImpl.java:450) 
548563684503629849 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
548563684507824128 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 
548563684507824130 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
548563684507824132 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at java.lang.reflect.Method.invoke(Method.java:497) 
548563684507824134 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at org.springframework.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:202) 
548563684507824136 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at org.springframework.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:187) 
548563684507824139 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at org.springframework.orm.jpa.vendor.HibernateJpaDialect$HibernateConnectionHandle.doGetConnection(HibernateJpaDialect.java:385) 
548563684507824141 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at org.springframework.orm.jpa.vendor.HibernateJpaDialect.beginTransaction(HibernateJpaDialect.java:153) 
548563684507824143 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:380) 
548563684507824144 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:373) 
548563684507824146 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:463) 
548563684507824148 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:276) 
548563684507824150 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96) 
548563684507824151 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) 
548563684507824153 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:136) 
548563684512018433 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) 
548563684512018435 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodIntercceptor.invoke(CrudMethodMetadataPostProcessor.java:122) 
548563684512018437 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) 
548563684512018438 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92) 
548563684512018440 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) 
548563684512018442 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207) 
548563684512018443 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at com.sun.proxy.$Proxy143.findAll(Unknown Source) 
548563684512018444 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at com.bignibou.service.advertisement.impl.AdvertisementServiceImpl.regularDayToTimeSlots(AdvertisementServiceImpl.java:94) 
548563684512018446 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
548563684512018448 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 
548563684512018449 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
548563684512018451 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at java.lang.reflect.Method.invoke(Method.java:497) 
548563684512018453 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317) 
548563684516212736 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190) 
548563684516212741 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157) 
548563684516212745 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at org.springframework.cache.interceptor.CacheInterceptor$1.invoke(CacheInterceptor.java:52) 
548563684516212748 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at org.springframework.cache.interceptor.CacheAspectSupport.invokeOperation(CacheAspectSupport.java:317) 
548563684516212751 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at org.springframework.cache.interceptor.CacheAspectSupport.execute(CacheAspectSupport.java:350) 
548563684516212755 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at org.springframework.cache.interceptor.CacheAspectSupport.execute(CacheAspectSupport.java:299) 
548563684516212758 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at org.springframework.cache.interceptor.CacheInterceptor.invoke(CacheInterceptor.java:61) 
548563684516212763 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) 
548563684516212766 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207) 
548563684516212770 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at com.sun.proxy.$Proxy146.regularDayToTimeSlots(Unknown Source) 
548563684520407054 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at com.bignibou.web.controller.utils.UtilsController.regularDayToTimeSlots(UtilsController.java:66) 
548563684520407057 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
548563684520407061 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 
548563684520407064 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
548563684520407068 2015-06-19T14:43:16 2015-06-19T14:43:16Z 82310644 floating-taiga-1576 54.196.30.228 Local7 Info app/web.1  at java.lang.reflect.Method.invoke(Method.java:497) 
548563684637847575 

Может кто-нибудь, пожалуйста, помогите?

Answer 1

Прочтите HikariCP FAQ, это второй вопрос.