[keycloak-dev] Communications links failure

[David Ramírez]

Hi guys,

do you know something about this error?

In a first time it was seem all was ok. Apparently keycloak updated
correctly my new database although this WARN
https://issues.jboss.org/browse/KEYCLOAK-1506 appeared.

I signed in like admin and I made some operations correctly but when I
logout and sign in again Keycloak crashed.

I'm working with *MariaDB version:10.0.12*.

This is the error:


09:20:45,808 WARN [org.hibernate.engine.jdbc.spi.SqlExceptionHelper]
(default task-39) SQL Error: 0, SQLState: 08S01 09:20:45,813 ERROR
[org.hibernate.engine.jdbc.spi.SqlExceptionHelper] (default task-39)
Communications link failure The last packet successfully received from the
server was 920.157 milliseconds ago. The last packet sent successfully to
the server was 0 milliseconds ago. 09:20:45,820 ERROR [io.undertow.request]
(default task-39) UT005023: Exception handling request to
/auth/admin/realms: java.lang.RuntimeException: request path:
/auth/admin/realms at
org.keycloak.services.filters.KeycloakSessionServletFilter.doFilter(KeycloakSessionServletFilter.java:73)
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:60)
at
io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:132)
at
io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:85)
at
io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)
at
io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
at
org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78)
at
io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at
io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131)
at
io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57)
at
io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at
io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)
at
io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)
at
io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:58)
at
io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:72)
at
io.undertow.security.handlers.NotificationReceiverHandler.handleRequest(NotificationReceiverHandler.java:50)
at
io.undertow.security.handlers.SecurityInitialHandler.handleRequest(SecurityInitialHandler.java:76)
at
io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at
org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)
at
io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at
io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at
io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:282)
at
io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:261)
at
io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:80)
at
io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:172)
at io.undertow.server.Connectors.executeRootHandler(Connectors.java:199) at
io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:774) at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745) Caused by:
org.jboss.resteasy.spi.UnhandledException:
javax.persistence.PersistenceException:
org.hibernate.exception.JDBCConnectionException: could not prepare
statement at
org.jboss.resteasy.core.ExceptionHandler.handleApplicationException(ExceptionHandler.java:76)
at
org.jboss.resteasy.core.ExceptionHandler.handleException(ExceptionHandler.java:212)
at
org.jboss.resteasy.core.SynchronousDispatcher.writeException(SynchronousDispatcher.java:149)
at
org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:372)
at
org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:179)
at
org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:220)
at
org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:56)
at
org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:51)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) at
io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:86)
at
io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:130)
at
org.keycloak.services.filters.KeycloakSessionServletFilter.doFilter(KeycloakSessionServletFilter.java:59)
... 29 more Caused by: javax.persistence.PersistenceException:
org.hibernate.exception.JDBCConnectionException: could not prepare
statement at
org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1763)
at
org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1677)
at org.hibernate.jpa.internal.QueryImpl.getResultList(QueryImpl.java:458)
at
org.keycloak.models.jpa.JpaRealmProvider.getRealms(JpaRealmProvider.java:71)
at
org.keycloak.models.cache.infinispan.DefaultCacheRealmProvider.getRealms(DefaultCacheRealmProvider.java:188)
at
org.keycloak.services.resources.admin.RealmsAdminResource.getRealms(RealmsAdminResource.java:87)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483) at
org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:137)
at
org.jboss.resteasy.core.ResourceMethodInvoker.invokeOnTarget(ResourceMethodInvoker.java:296)
at
org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:250)
at
org.jboss.resteasy.core.ResourceLocatorInvoker.invokeOnTargetObject(ResourceLocatorInvoker.java:140)
at
org.jboss.resteasy.core.ResourceLocatorInvoker.invoke(ResourceLocatorInvoker.java:103)
at
org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:356)
... 37 more Caused by: org.hibernate.exception.JDBCConnectionException:
could not prepare statement at
org.hibernate.exception.internal.SQLStateConversionDelegate.convert(SQLStateConversionDelegate.java:132)
at
org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:49)
at
org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:126)
at
org.hibernate.engine.jdbc.internal.StatementPreparerImpl$StatementPreparationTemplate.prepareStatement(StatementPreparerImpl.java:196)
at
org.hibernate.engine.jdbc.internal.StatementPreparerImpl.prepareQueryStatement(StatementPreparerImpl.java:160)
at org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1885) at
org.hibernate.loader.Loader.executeQueryStatement(Loader.java:1862) at
org.hibernate.loader.Loader.executeQueryStatement(Loader.java:1839) at
org.hibernate.loader.Loader.doQuery(Loader.java:910) at
org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:355)
at org.hibernate.loader.Loader.doList(Loader.java:2554) at
org.hibernate.loader.Loader.doList(Loader.java:2540) at
org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2370) at
org.hibernate.loader.Loader.list(Loader.java:2365) at
org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:497) at
org.hibernate.hql.internal.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:387)
at
org.hibernate.engine.query.spi.HQLQueryPlan.performList(HQLQueryPlan.java:236)
at org.hibernate.internal.SessionImpl.list(SessionImpl.java:1300) at
org.hibernate.internal.QueryImpl.list(QueryImpl.java:103) at
org.hibernate.jpa.internal.QueryImpl.list(QueryImpl.java:573) at
org.hibernate.jpa.internal.QueryImpl.getResultList(QueryImpl.java:449) ...
50 more Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException:
Communications link failure The last packet successfully received from the
server was 920.157 milliseconds ago. The last packet sent successfully to
the server was 0 milliseconds ago. 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:408) at
com.mysql.jdbc.Util.handleNewInstance(Util.java:404) at
com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:983) at
com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3457) at
com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3357) at
com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3797) at
com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2470) at
com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2617) at
com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2546) at
com.mysql.jdbc.ConnectionImpl.setAutoCommit(ConnectionImpl.java:4873) at
org.jboss.jca.adapters.jdbc.BaseWrapperManagedConnection.checkTransaction(BaseWrapperManagedConnection.java:948)
at
org.jboss.jca.adapters.jdbc.WrappedConnection.checkTransaction(WrappedConnection.java:1623)
at
org.jboss.jca.adapters.jdbc.WrappedConnection.prepareStatement(WrappedConnection.java:427)
at
org.hibernate.engine.jdbc.internal.StatementPreparerImpl$5.doPrepare(StatementPreparerImpl.java:162)
at
org.hibernate.engine.jdbc.internal.StatementPreparerImpl$StatementPreparationTemplate.prepareStatement(StatementPreparerImpl.java:186)
... 67 more 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.jdbc.MysqlIO.readFully(MysqlIO.java:2949)
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3367) ... 78 more
any ideas? could my database version the problem? thanks!
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