bobo892589 opened a new issue, #30943:
URL: https://github.com/apache/shardingsphere/issues/30943
## Bug Report
### Which version of ShardingSphere did you use?
5.2.1
### Which project did you use? ShardingSphere-JDBC or ShardingSphere-Proxy?
ShardingSphere-JDBC
### Expected behavior
### Actual behavior
The same SQL statement can usually return results normally, but sometimes
throw error.
`
org.springframework.dao.DataAccessResourceFailureException: could not
extract ResultSet; nested exception is
org.hibernate.exception.JDBCConnectionException: could not extract ResultSet
at
org.springframework.orm.jpa.vendor.HibernateJpaDialect.convertHibernateAccessException(HibernateJpaDialect.java:255)
at
org.springframework.orm.jpa.vendor.HibernateJpaDialect.translateExceptionIfPossible(HibernateJpaDialect.java:233)
at
org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.translateExceptionIfPossible(AbstractEntityManagerFactoryBean.java:551)
at
org.springframework.dao.support.ChainedPersistenceExceptionTranslator.translateExceptionIfPossible(ChainedPersistenceExceptionTranslator.java:61)
at
org.springframework.dao.support.DataAccessUtils.translateIfNecessary(DataAccessUtils.java:242)
at
org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:152)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at
org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodInterceptor.invoke(CrudMethodMetadataPostProcessor.java:145)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at
org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:97)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:215)
...
at
org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)
at
org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:793)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
at
org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:763)
at
org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:89)
at
com.tg.common.spring.util.MethodLoggerAspect.methodLog(MethodLoggerAspect.java:36)
at sun.reflect.GeneratedMethodAccessor373.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at
org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:634)
at
org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:624)
at
org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:72)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at
org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:763)
at
org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:123)
at
org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:388)
at
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:119)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at
org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:763)
at
org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:97)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at
org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:763)
at
org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:708)
...
at
org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)
at
org.springframework.aop.framework.CglibAopProxy.invokeMethod(CglibAopProxy.java:386)
at
org.springframework.aop.framework.CglibAopProxy.access$000(CglibAopProxy.java:85)
at
org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:704)
...
at
org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)
at
org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:793)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
at
org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:763)
at
org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:89)
at
com.tg.common.spring.util.MethodLoggerAspect.methodLog(MethodLoggerAspect.java:36)
at sun.reflect.GeneratedMethodAccessor373.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at
org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:634)
at
org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:624)
at
org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:72)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at
org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:763)
at
org.springframework.cache.interceptor.CacheInterceptor.lambda$invoke$0(CacheInterceptor.java:54)
at
org.springframework.cache.interceptor.CacheAspectSupport.invokeOperation(CacheAspectSupport.java:366)
at
org.springframework.cache.interceptor.CacheAspectSupport.execute(CacheAspectSupport.java:421)
at
org.springframework.cache.interceptor.CacheAspectSupport.execute(CacheAspectSupport.java:345)
at
org.springframework.cache.interceptor.CacheInterceptor.invoke(CacheInterceptor.java:64)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at
org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:763)
at
org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:97)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at
org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:763)
at
org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:708)
at sun.reflect.GeneratedMethodAccessor1786.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at
org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205)
at
org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:150)
at
org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:117)
at
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:895)
at
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808)
at
org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
at
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1067)
at
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:963)
at
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)
at
org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:681)
at
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:764)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at
com.tg.common.web.filter.WebDebugFilter.doFilter(WebDebugFilter.java:29)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at
org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)
at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at
org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)
at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at
org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:96)
at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at
org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:197)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541)
at
org.apache.catalina.core.StandardHostValve.invoke$original$FbHWuX9I(StandardHostValve.java:135)
at
org.apache.catalina.core.StandardHostValve.invoke$original$FbHWuX9I$accessor$ZuzfS3HW(StandardHostValve.java)
at
org.apache.catalina.core.StandardHostValve$auxiliary$yCArAvsw.call(Unknown
Source)
at
org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance.InstMethodsInter.intercept(InstMethodsInter.java:86)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78)
at
org.apache.catalina.valves.RemoteIpValve.invoke(RemoteIpValve.java:769)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:360)
at
org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:399)
at
org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
at
org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:890)
at
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1787)
at
org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at
org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191)
at
org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659)
at
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)
Caused by: org.hibernate.exception.JDBCConnectionException: could not
extract ResultSet
at
org.hibernate.exception.internal.SQLStateConversionDelegate.convert(SQLStateConversionDelegate.java:112)
at
org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:37)
at
org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:113)
at
org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:99)
at
org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.extract(ResultSetReturnImpl.java:67)
at org.hibernate.loader.Loader.getResultSet(Loader.java:2322)
at org.hibernate.loader.Loader.executeQueryStatement(Loader.java:2075)
at org.hibernate.loader.Loader.executeQueryStatement(Loader.java:2037)
at org.hibernate.loader.Loader.doQuery(Loader.java:956)
at
org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:357)
at org.hibernate.loader.Loader.doList(Loader.java:2868)
at org.hibernate.loader.Loader.doList(Loader.java:2850)
at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2682)
at org.hibernate.loader.Loader.list(Loader.java:2677)
at org.hibernate.loader.custom.CustomLoader.list(CustomLoader.java:338)
at
org.hibernate.internal.SessionImpl.listCustomQuery(SessionImpl.java:2186)
at
org.hibernate.internal.AbstractSharedSessionContract.list(AbstractSharedSessionContract.java:1204)
at
org.hibernate.query.internal.NativeQueryImpl.doList(NativeQueryImpl.java:177)
at
org.hibernate.query.internal.AbstractProducedQuery.list(AbstractProducedQuery.java:1617)
at org.hibernate.query.Query.getResultList(Query.java:165)
at
org.springframework.data.jpa.repository.query.JpaQueryExecution$CollectionExecution.doExecute(JpaQueryExecution.java:128)
at
org.springframework.data.jpa.repository.query.JpaQueryExecution.execute(JpaQueryExecution.java:90)
at
org.springframework.data.jpa.repository.query.AbstractJpaQuery.doExecute(AbstractJpaQuery.java:155)
at
org.springframework.data.jpa.repository.query.AbstractJpaQuery.execute(AbstractJpaQuery.java:143)
at
org.springframework.data.repository.core.support.RepositoryMethodInvoker.doInvoke(RepositoryMethodInvoker.java:137)
at
org.springframework.data.repository.core.support.RepositoryMethodInvoker.invoke(RepositoryMethodInvoker.java:121)
at
org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.doInvoke(QueryExecutorMethodInterceptor.java:160)
at
org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.invoke(QueryExecutorMethodInterceptor.java:139)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at
org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:123)
at
org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:388)
at
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:119)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at
org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:137)
... 134 common frames omitted
Caused by: com.mysql.cj.jdbc.exceptions.CommunicationsException:
Communications link failure
at
com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
at
com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
at
com.mysql.cj.jdbc.ServerPreparedStatement.serverExecute(ServerPreparedStatement.java:555)
at
com.mysql.cj.jdbc.ServerPreparedStatement.executeInternal(ServerPreparedStatement.java:339)
at
com.mysql.cj.jdbc.ClientPreparedStatement.executeQuery$original$6V4l1Ewx(ClientPreparedStatement.java:972)
at
com.mysql.cj.jdbc.ClientPreparedStatement.executeQuery$original$6V4l1Ewx$accessor$FOPY0puX(ClientPreparedStatement.java)
at
com.mysql.cj.jdbc.ClientPreparedStatement$auxiliary$IRzwSlb4.call(Unknown
Source)
at
org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance.InstMethodsInter.intercept(InstMethodsInter.java:86)
at
com.mysql.cj.jdbc.ClientPreparedStatement.executeQuery(ClientPreparedStatement.java)
at
com.mysql.cj.jdbc.ServerPreparedStatement.executeQuery$accessor$OX3xSpdU(ServerPreparedStatement.java)
at
com.mysql.cj.jdbc.ServerPreparedStatement$auxiliary$odzH4tax.call(Unknown
Source)
at
org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance.InstMethodsInter.intercept(InstMethodsInter.java:86)
at
com.mysql.cj.jdbc.ServerPreparedStatement.executeQuery(ServerPreparedStatement.java)
at
com.zaxxer.hikari.pool.ProxyPreparedStatement.executeQuery(ProxyPreparedStatement.java:52)
at
com.zaxxer.hikari.pool.HikariProxyPreparedStatement.executeQuery(HikariProxyPreparedStatement.java)
at
org.apache.shardingsphere.driver.executor.callback.impl.PreparedStatementExecuteQueryCallback.executeQuery(PreparedStatementExecuteQueryCallback.java:41)
at
org.apache.shardingsphere.driver.executor.callback.ExecuteQueryCallback.executeSQL(ExecuteQueryCallback.java:45)
at
org.apache.shardingsphere.driver.executor.callback.ExecuteQueryCallback.executeSQL(ExecuteQueryCallback.java:37)
at
org.apache.shardingsphere.infra.executor.sql.execute.engine.driver.jdbc.JDBCExecutorCallback.execute(JDBCExecutorCallback.java:95)
at
org.apache.shardingsphere.infra.executor.sql.execute.engine.driver.jdbc.JDBCExecutorCallback.execute(JDBCExecutorCallback.java:75)
at
org.apache.shardingsphere.infra.executor.kernel.ExecutorEngine.syncExecute(ExecutorEngine.java:135)
at
org.apache.shardingsphere.infra.executor.kernel.ExecutorEngine.serialExecute(ExecutorEngine.java:121)
at
org.apache.shardingsphere.infra.executor.kernel.ExecutorEngine.execute(ExecutorEngine.java:115)
at
org.apache.shardingsphere.infra.executor.sql.execute.engine.driver.jdbc.JDBCExecutor.execute(JDBCExecutor.java:65)
at
org.apache.shardingsphere.infra.executor.sql.execute.engine.driver.jdbc.JDBCExecutor.execute(JDBCExecutor.java:49)
at
org.apache.shardingsphere.driver.executor.DriverJDBCExecutor.executeQuery(DriverJDBCExecutor.java:82)
at
org.apache.shardingsphere.driver.jdbc.core.statement.ShardingSpherePreparedStatement.executeQuery0(ShardingSpherePreparedStatement.java:296)
at
org.apache.shardingsphere.driver.jdbc.core.statement.ShardingSpherePreparedStatement.executeQuery(ShardingSpherePreparedStatement.java:232)
at
org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.extract(ResultSetReturnImpl.java:57)
... 163 common frames omitted
Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications
link failure
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at
com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
at
com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
at
com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
at
com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
at
com.mysql.cj.protocol.a.NativeProtocol.readMessage(NativeProtocol.java:581)
at
com.mysql.cj.protocol.a.NativeProtocol.checkErrorMessage(NativeProtocol.java:761)
at
com.mysql.cj.protocol.a.NativeProtocol.sendCommand(NativeProtocol.java:700)
at
com.mysql.cj.ServerPreparedQuery.sendExecutePacket(ServerPreparedQuery.java:276)
at
com.mysql.cj.ServerPreparedQuery.serverExecute(ServerPreparedQuery.java:199)
at
com.mysql.cj.jdbc.ServerPreparedStatement.serverExecute(ServerPreparedStatement.java:553)
... 189 common frames omitted
Caused by: java.io.EOFException: Can not read response from server. Expected
to read 4 bytes, read 0 bytes before connection was unexpectedly lost.
at
com.mysql.cj.protocol.FullReadInputStream.readFully(FullReadInputStream.java:67)
at
com.mysql.cj.protocol.a.SimplePacketReader.readHeaderLocal(SimplePacketReader.java:81)
at
com.mysql.cj.protocol.a.SimplePacketReader.readHeader(SimplePacketReader.java:63)
at
com.mysql.cj.protocol.a.SimplePacketReader.readHeader(SimplePacketReader.java:45)
at
com.mysql.cj.protocol.a.MultiPacketReader.readHeader(MultiPacketReader.java:54)
at
com.mysql.cj.protocol.a.MultiPacketReader.readHeader(MultiPacketReader.java:44)
at
com.mysql.cj.protocol.a.NativeProtocol.readMessage(NativeProtocol.java:575)
... 194 common frames omitted
`
Properties
`spring.shardingsphere.mode.type=Standalone`
`spring.shardingsphere.rules.encrypt.encryptors.encryptor_aes.type=AES`
`spring.shardingsphere.datasource.names=ds`
`spring.shardingsphere.datasource.ds.type=com.zaxxer.hikari.HikariDataSource`
`spring.shardingsphere.datasource.ds.driver-class-name=com.mysql.cj.jdbc.Driver`
`spring.shardingsphere.datasource.ds.max-lifetime=600000`
`spring.shardingsphere.datasource.ds.idle-timeout=300000`
`spring.shardingsphere.datasource.ds.keepalive-time=30000`
`spring.shardingsphere.datasource.ds.minimum-idle=5`
`spring.shardingsphere.datasource.ds.maximum-pool-size=30 `
`spring.shardingsphere.datasource.ds.connection-test-query=select 1 `
`spring.shardingsphere.datasource.ds.connection-init-sql=set names utf8mb4 `
### Reason analyze (If you can)
### Steps to reproduce the behavior, such as: SQL to execute, sharding rule
configuration, when exception occur etc.
### Example codes for reproduce this issue (such as a github link).
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