confluence migration assistant app error "cannot connect to your server"

[Parul_Yadav]

Hi ,

We are using confluence migration assistant app to migrate confluence form server to cloud & getting the below error while we try to initiate a migration. Any idea why this could be coming? 

This is happening since we have upgrade our confluence to 7.4.1 recently. Please help

[Konstantin Weber - SVA]

I have the exact same error in the pre-check of a Confluence migration:

Confluence Version: 6.6.13

MySQL Version: myqsl Ver 14.14 Distrib 5.7.37, for Linux (x86_64) using EditLine wrapper

Installed JDBC Connector: mssql-jdbc-6.3.0.jre8-preview.jar and(?) spring-jdbc-4.2.5.RELEASE.jar

RAM Usage: -Xms1024m -Xmx2048m

          total used free share buff/cache
Mem: 7.8G 3.8G 2.9G 740K 1.1G 3.7G
Swap:    0B    0B    0B

I appear to have such errors/warnings in my logs:

2022-02-28 13:15:39,194 WARN [Caesium-1-1] [impl.schedule.caesium.JobRunnerWrapper] runJob Scheduled job migration-plugin:checks-runner.SharedEmails#ab72657c-997c-4c6a-9460-c4d8101ce3ab completed unsuccessfully with response JobRunnerResponse[runOutcome=FAILED,message='UncheckedExecutionException: org.springframework.dao.DataAccessResourceFailureException: PreparedStatementCallback; SQL [SELECT USERNAME, CREATOR, LASTMODIFIER
FROM NOTIFICATIONS
WHERE SPACEID = ? OR CONTENTID IN (SELECT CONTENTID FROM CONTENT WHERE SPACE']
2022-02-28 13:15:39,255 WARN [Caesium-1-1] [v2.c3p0.impl.NewPooledConnection] log [c3p0] A PooledConnection that has already signalled a Connection error is still in use!
-- checkExecutionId: ea2f40a97da7e362383b96f3374ca50214518277
2022-02-28 13:15:39,255 WARN [Caesium-1-1] [v2.c3p0.impl.NewPooledConnection] log [c3p0] Another error has occurred [ com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operations allowed after connection closed. ] which will not be reported to listeners!
-- checkExecutionId: ea2f40a97da7e362383b96f3374ca50214518277
com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operations allowed after connection closed.

Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: The last packet successfully received from the server was 464,996,117 milliseconds ago.
The last packet sent successfully to the server was 464,996,118 milliseconds ago. is longer than the server configured value of 'wait_timeout'.
You should consider either expiring and/or testing connection validity before use in your application, increasing the server configured values for client timeouts,
or using the Connector/J connection property 'autoReconnect=true' to avoid this problem.

Caused by: java.net.SocketException: Broken pipe (Write failed)

2022-02-28 13:15:39,257 WARN [Caesium-1-1] [confluence.impl.hibernate.ConfluenceHibernateTransactionManager] doRollback Performing rollback. Transactions:
->[PluginReadWriteTx]: PROPAGATION_REQUIRED,ISOLATION_DEFAULT (Session #236688263)
-- checkExecutionId: ea2f40a97da7e362383b96f3374ca50214518277
2022-02-28 13:15:39,261 ERROR [Caesium-1-1] [agent.service.check.AsyncCheckExecutor] error Couldn't execute check of type InvalidEmails with id ea2f40a97da7e362383b96f3374ca50214518277
com.google.common.util.concurrent.UncheckedExecutionException: org.springframework.dao.DataAccessResourceFailureException: PreparedStatementCallback; SQL [SELECT USERNAME, CREATOR, LASTMODIFIER
FROM NOTIFICATIONS
WHERE SPACEID = ? OR CONTENTID IN (SELECT CONTENTID FROM CONTENT WHERE SPACEID = ?
UNION
SELECT CONTENTID FROM CONTENT WHERE CONTENTTYPE = 'COMMENT' AND PAGEID IN (SELECT CONTENTID FROM CONTENT WHERE SPACEID = ?)
UNION
SELECT CONTENTID FROM CONTENT WHERE PAGEID IN (SELECT CONTENTID FROM CONTENT WHERE CONTENTTYPE = 'COMMENT' AND PAGEID IN (SELECT CONTENTID FROM CONTENT WHERE SPACEID = ?))
UNION
SELECT CONTENTID FROM CONTENT WHERE SPACEID is null AND PREVVER IN (SELECT CONTENTID FROM CONTENT WHERE SPACEID = ?)
UNION
SELECT CONTENTID FROM CONTENT WHERE CONTENTTYPE = 'COMMENT' AND PREVVER IN (SELECT CONTENTID FROM CONTENT WHERE CONTENTTYPE = 'COMMENT' AND PAGEID IN (SELECT CONTENTID FROM CONTENT WHERE SPACEID = ?)))]; No operations allowed after connection closed.; nested exception is com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operations allowed after connection closed.
......
......
Caused by: org.springframework.dao.DataAccessResourceFailureException: PreparedStatementCallback; SQL [SELECT USERNAME, CREATOR, LASTMODIFIER
FROM NOTIFICATIONS
WHERE SPACEID = ? OR CONTENTID IN (SELECT CONTENTID FROM CONTENT WHERE SPACEID = ?
UNION
SELECT CONTENTID FROM CONTENT WHERE CONTENTTYPE = 'COMMENT' AND PAGEID IN (SELECT CONTENTID FROM CONTENT WHERE SPACEID = ?)
UNION
SELECT CONTENTID FROM CONTENT WHERE PAGEID IN (SELECT CONTENTID FROM CONTENT WHERE CONTENTTYPE = 'COMMENT' AND PAGEID IN (SELECT CONTENTID FROM CONTENT WHERE SPACEID = ?))
UNION
SELECT CONTENTID FROM CONTENT WHERE SPACEID is null AND PREVVER IN (SELECT CONTENTID FROM CONTENT WHERE SPACEID = ?)
UNION
SELECT CONTENTID FROM CONTENT WHERE CONTENTTYPE = 'COMMENT' AND PREVVER IN (SELECT CONTENTID FROM CONTENT WHERE CONTENTTYPE = 'COMMENT' AND PAGEID IN (SELECT CONTENTID FROM CONTENT WHERE SPACEID = ?)))]; No operations allowed after connection closed.; nested exception is com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operations allowed after connection closed.
......
......
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operations allowed after connection closed.
......
Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: The last packet successfully received from the server was 464,996,117 milliseconds ago.
The last packet sent successfully to the server was 464,996,118 milliseconds ago. is longer than the server configured value of 'wait_timeout'.
You should consider either expiring and/or testing connection validity before use in your application, increasing the server configured values for client timeouts,
or using the Connector/J connection property 'autoReconnect=true' to avoid this problem.
......
Caused by: java.net.SocketException: Broken pipe (Write failed)
......
2022-02-28 13:15:39,305 WARN [Caesium-1-1] [impl.schedule.caesium.JobRunnerWrapper] runJob Scheduled job migration-plugin:checks-runner.InvalidEmails#1a468f7e-d5e8-4700-8bbf-a922668b465b completed unsuccessfully with response JobRunnerResponse[runOutcome=FAILED,message='UncheckedExecutionException: org.springframework.dao.DataAccessResourceFailureException: PreparedStatementCallback; SQL [SELECT USERNAME, CREATOR, LASTMODIFIER
FROM NOTIFICATIONS
WHERE SPACEID = ? OR CONTENTID IN (SELECT CONTENTID FROM CONTENT WHERE SPACE']

 The Error trace starts with this:

2022-02-28 16:11:20,290 WARN [http-nio-443-exec-16] [v2.c3p0.impl.NewPooledConnection] log [c3p0] A PooledConnection that has already signalled a Connection error is still in use!
-- referer: https://confluence.energybase.com/admin/migration.action | url: /rest/migration/latest/stats/usersGroups | traceId: b36cbd0e5ee119bd | userName: konstantin.weber@sva.de
2022-02-28 16:11:20,292 WARN [http-nio-443-exec-16] [v2.c3p0.impl.NewPooledConnection] log [c3p0] Another error has occurred [ com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operations allowed after connection closed. ] which will not be reported to listeners!

[Konstantin Weber - SVA]

Adding "&autoReconnect=true" to the jdbc-connection string solved the problem.

[michael_faessler]

@Hello @Konstantin Weber - SVA 

The  "&autoReconnect=true" did help for us:

<property name="hibernate.connection.url">jdbc:mysql://localhost:3306/a_dbname?useSSL=false&amp;autoReconnect=true</property>

Thank you !
Michael

.... before setting this, I got following Logs:

2022-05-09 14:24:23,159 WARN [Caesium-1-2] [v2.c3p0.impl.NewPooledConnection] log [c3p0] A PooledConnection that has already signalled a Connection error is still in use!
-- checkExecutionId: 2532f4f12978a2a1818952cc9a428a0aae1939c5
2022-05-09 14:24:23,160 WARN [Caesium-1-2] [v2.c3p0.impl.NewPooledConnection] log [c3p0] Another error has occurred [ com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operations allowed after connection closed. ] which will not be reported to listeners!
-- checkExecutionId: 2532f4f12978a2a1818952cc9a428a0aae1939c5
com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operations allowed after connection closed.
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.base/java.lang.reflect.Constructor.newInstance(Unknown Source)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:425)
at com.mysql.jdbc.Util.getInstance(Util.java:408)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:919)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:898)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:887)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:861)
at com.mysql.jdbc.ConnectionImpl.throwConnectionClosedException(ConnectionImpl.java:1182)
at com.mysql.jdbc.ConnectionImpl.checkClosed(ConnectionImpl.java:1177)
at com.mysql.jdbc.ConnectionImpl.prepareStatement(ConnectionImpl.java:4037)
at com.mysql.jdbc.ConnectionImpl.prepareStatement(ConnectionImpl.java:4006)
at com.mchange.v2.c3p0.impl.NewProxyConnection.prepareStatement(NewProxyConnection.java:567)
at org.springframework.jdbc.core.PreparedStatementCreatorFactory$PreparedStatementCreatorImpl.createPreparedStatement(PreparedStatementCreatorFactory.java:238)
at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:615)
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:669)
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:694)
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:748)
at org.springframework.jdbc.core.namedparam.NamedParameterJdbcTemplate.query(NamedParameterJdbcTemplate.java:216)
at org.springframework.jdbc.core.namedparam.NamedParameterJdbcTemplate.queryForList(NamedParameterJdbcTemplate.java:296)
at org.springframework.jdbc.core.namedparam.NamedParameterJdbcTemplate.queryForList(NamedParameterJdbcTemplate.java:303)
at com.atlassian.migration.agent.service.extract.UserExtractionServiceImpl.extractUsersFromQuery(UserExtractionServiceImpl.java:244)
at com.atlassian.migration.agent.service.extract.UserExtractionServiceImpl.extractUsersFromQueryResults(UserExtractionServiceImpl.java:236)
at com.atlassian.migration.agent.service.extract.UserExtractionServiceImpl.lambda$getUsersFromSpace$1(UserExtractionServiceImpl.java:183)
at com.atlassian.sal.core.transaction.HostContextTransactionTemplate$1.doInTransaction(HostContextTransactionTemplate.java:21)
at com.atlassian.sal.spring.component.SpringHostContextAccessor.lambda$doInTransaction$0(SpringHostContextAccessor.java:70)
at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:140)
at com.atlassian.sal.spring.component.SpringHostContextAccessor.doInTransaction(SpringHostContextAccessor.java:68)
at com.atlassian.confluence.spring.transaction.interceptor.ConfluenceSpringHostContextAccessor.access$001(ConfluenceSpringHostContextAccessor.java:21)
at com.atlassian.confluence.spring.transaction.interceptor.ConfluenceSpringHostContextAccessor.lambda$doInTransaction$3(ConfluenceSpringHostContextAccessor.java:72)
at com.atlassian.confluence.impl.vcache.VCacheRequestContextManager.doInRequestContextInternal(VCacheRequestContextManager.java:84)
at com.atlassian.confluence.impl.vcache.VCacheRequestContextManager.doInRequestContext(VCacheRequestContextManager.java:68)
at com.atlassian.confluence.spring.transaction.interceptor.ConfluenceSpringHostContextAccessor.doInTransaction(ConfluenceSpringHostContextAccessor.java:72)
at com.atlassian.sal.core.transaction.HostContextTransactionTemplate.execute(HostContextTransactionTemplate.java:18)
at jdk.internal.reflect.GeneratedMethodAccessor294.invoke(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.base/java.lang.reflect.Method.invoke(Unknown Source)
at com.atlassian.plugin.util.ContextClassLoaderSettingInvocationHandler.invoke(ContextClassLoaderSettingInvocationHandler.java:26)
at com.sun.proxy.$Proxy272.execute(Unknown Source)
at jdk.internal.reflect.GeneratedMethodAccessor8132.invoke(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.base/java.lang.reflect.Method.invoke(Unknown Source)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:343)
at org.eclipse.gemini.blueprint.service.importer.support.internal.aop.ServiceInvoker.doInvoke(ServiceInvoker.java:56)
at org.eclipse.gemini.blueprint.service.importer.support.internal.aop.ServiceInvoker.invoke(ServiceInvoker.java:60)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at org.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:136)
at org.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:124)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at org.eclipse.gemini.blueprint.service.util.internal.aop.ServiceTCCLInterceptor.invokeUnprivileged(ServiceTCCLInterceptor.java:70)
at org.eclipse.gemini.blueprint.service.util.internal.aop.ServiceTCCLInterceptor.invoke(ServiceTCCLInterceptor.java:53)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at org.eclipse.gemini.blueprint.service.importer.support.LocalBundleContextAdvice.invoke(LocalBundleContextAdvice.java:57)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at org.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:136)
at org.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:124)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:212)
at com.sun.proxy.$Proxy3717.execute(Unknown Source)
at com.atlassian.migration.agent.service.extract.UserExtractionServiceImpl.getUsersFromSpace(UserExtractionServiceImpl.java:177)
at java.base/java.util.stream.Collectors.lambda$uniqKeysMapAccumulator$1(Unknown Source)
at java.base/java.util.stream.ReduceOps$3ReducingSink.accept(Unknown Source)
at java.base/java.util.Spliterators$ArraySpliterator.forEachRemaining(Unknown Source)
at java.base/java.util.stream.AbstractPipeline.copyInto(Unknown Source)
at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(Unknown Source)
at java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(Unknown Source)
at java.base/java.util.stream.AbstractPipeline.evaluate(Unknown Source)
at java.base/java.util.stream.ReferencePipeline.collect(Unknown Source)
at com.atlassian.migration.agent.service.extract.UserExtractionServiceImpl.getUsersFromSpaces(UserExtractionServiceImpl.java:155)
at com.atlassian.migration.agent.service.extract.UserGroupExtractFacade$1.loadAll(UserGroupExtractFacade.java:63)
at com.google.common.cache.LocalCache.loadAll(LocalCache.java:4058)
at com.google.common.cache.LocalCache.getAll(LocalCache.java:4021)
at com.google.common.cache.LocalCache$LocalLoadingCache.getAll(LocalCache.java:4972)
at com.atlassian.migration.agent.service.extract.UserGroupExtractFacade.getUsersFromSpaces(UserGroupExtractFacade.java:98)
at com.atlassian.migration.agent.service.check.email.EmailCheckContextProvider.apply(EmailCheckContextProvider.java:41)
at com.atlassian.migration.agent.service.check.email.EmailCheckContextProvider.apply(EmailCheckContextProvider.java:22)
at com.atlassian.migration.agent.service.check.AsyncCheckExecutor.lambda$executeChecker$7(AsyncCheckExecutor.java:202)
at com.atlassian.migration.agent.logging.LoggingContextBuilder.execute(LoggingContextBuilder.java:127)
at com.atlassian.migration.agent.service.check.AsyncCheckExecutor.executeChecker(AsyncCheckExecutor.java:196)
at com.atlassian.migration.agent.service.check.AsyncCheckExecutor.runJob(AsyncCheckExecutor.java:159)
at com.atlassian.confluence.impl.schedule.caesium.JobRunnerWrapper.doRunJob(JobRunnerWrapper.java:117)
at com.atlassian.confluence.impl.schedule.caesium.JobRunnerWrapper.lambda$runJob$0(JobRunnerWrapper.java:87)
at com.atlassian.confluence.impl.vcache.VCacheRequestContextManager.doInRequestContextInternal(VCacheRequestContextManager.java:84)
at com.atlassian.confluence.impl.vcache.VCacheRequestContextManager.doInRequestContext(VCacheRequestContextManager.java:68)
at com.atlassian.confluence.impl.schedule.caesium.JobRunnerWrapper.runJob(JobRunnerWrapper.java:87)
at com.atlassian.scheduler.core.JobLauncher.runJob(JobLauncher.java:134)
at com.atlassian.scheduler.core.JobLauncher.launchAndBuildResponse(JobLauncher.java:106)
at com.atlassian.scheduler.core.JobLauncher.launch(JobLauncher.java:90)
at com.atlassian.scheduler.caesium.impl.CaesiumSchedulerService.launchJob(CaesiumSchedulerService.java:435)
at com.atlassian.scheduler.caesium.impl.CaesiumSchedulerService.executeLocalJob(CaesiumSchedulerService.java:402)
at com.atlassian.scheduler.caesium.impl.CaesiumSchedulerService.executeQueuedJob(CaesiumSchedulerService.java:380)
at com.atlassian.scheduler.caesium.impl.SchedulerQueueWorker.executeJob(SchedulerQueueWorker.java:66)
at com.atlassian.scheduler.caesium.impl.SchedulerQueueWorker.executeNextJob(SchedulerQueueWorker.java:60)
at com.atlassian.scheduler.caesium.impl.SchedulerQueueWorker.run(SchedulerQueueWorker.java:35)
at java.base/java.lang.Thread.run(Unknown Source)
Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: The last packet successfully received from the server was 70,542,932 milliseconds ago. The last packet sent successfully to the server was 70,542,932 milliseconds ago. is longer than the server configured value of 'wait_timeout'. You should consider either expiring and/or testing connection validity before use in your application, increasing the server configured values for client timeouts, or using the Connector/J connection property 'autoReconnect=true' to avoid this problem.
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.base/java.lang.reflect.Constructor.newInstance(Unknown Source)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:425)
at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:990)
at com.mysql.jdbc.MysqlIO.send(MysqlIO.java:3706)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2506)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2675)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2465)
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1912)
at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:2020)
at com.mchange.v2.c3p0.impl.NewProxyPreparedStatement.executeQuery(NewProxyPreparedStatement.java:1471)
at org.springframework.jdbc.core.JdbcTemplate$1.doInPreparedStatement(JdbcTemplate.java:678)
at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:617)
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:669)
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:694)
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:748)
at org.springframework.jdbc.core.namedparam.NamedParameterJdbcTemplate.query(NamedParameterJdbcTemplate.java:216)
at org.springframework.jdbc.core.namedparam.NamedParameterJdbcTemplate.queryForList(NamedParameterJdbcTemplate.java:296)
at org.springframework.jdbc.core.namedparam.NamedParameterJdbcTemplate.queryForList(NamedParameterJdbcTemplate.java:303)
at com.atlassian.migration.agent.service.extract.UserExtractionServiceImpl.extractUsersFromQuery(UserExtractionServiceImpl.java:244)

....

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542)
at org.apache.catalina.valves.StuckThreadDetectionValve.invoke(StuckThreadDetectionValve.java:206)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143)
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:764)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:357)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:374)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:893)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1707)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
... 1 more
Caused by: java.net.SocketException: Broken pipe (Write failed)
at java.base/java.net.SocketOutputStream.socketWrite0(Native Method)
at java.base/java.net.SocketOutputStream.socketWrite(Unknown Source)
at java.base/java.net.SocketOutputStream.write(Unknown Source)
at java.base/java.io.BufferedOutputStream.flushBuffer(Unknown Source)
at java.base/java.io.BufferedOutputStream.flush(Unknown Source)
at com.mysql.jdbc.MysqlIO.send(MysqlIO.java:3688)
... 394 more