Hi,

how exactly looks "Own code which authenticates the user in DB" ? I guess you are accessing USER_ENTITY table somehow with your own EntityManager/JDBC code? You should either:
- use just model api and not use Keycloak tables directly from your own EntityManager
- switch to different database than default H2

Marek

On 20/08/15 20:47, Bhanu Kiran wrote:
Hi team,

I am implementing own user federation. 


As part of this implementing my class is UserFederationProvider.

1. In method public UserModel getUserByUsername(RealmModel realm, String username) {

//Own code which authenticates the user in DB

Returning  user model 

UserModel userModel = session.userStorage().addUser(realm, username);
userModel.setEnabled(true);
        userModel.setFederationLink(model.getId());
    return userModel
}


2. Below exception is generated after UserModel in returned.

Please let me know if i missed anything.

============================================================================


11:22:01,438 WARN  [org.hibernate.engine.jdbc.spi.SqlExceptionHelper] (default task-10) SQL Error: 50200, SQLState: HYT00
11:22:01,439 ERROR [org.hibernate.engine.jdbc.spi.SqlExceptionHelper] (default task-10) Timeout trying to lock table "USER_ENTITY"; SQL statement:
select userentity0_.ID as ID1_47_, userentity0_.CREATED_TIMESTAMP as CREATED_2_47_, userentity0_.EMAIL as EMAIL3_47_, userentity0_.EMAIL_CONSTRAINT as EMAIL_CO4_47_, userentity0_.EMAIL_VERIFIED as EMAIL_VE5_47_, userentity0_.ENABLED as ENABLED6_47_, userentity0_.federation_link as federati7_47_, userentity0_.FIRST_NAME as FIRST_NA8_47_, userentity0_.LAST_NAME as LAST_NAM9_47_, userentity0_.REALM_ID as REALM_I10_47_, userentity0_.SERVICE_ACCOUNT_CLIENT_LINK as SERVICE11_47_, userentity0_.TOTP as TOTP12_47_, userentity0_.USERNAME as USERNAM13_47_ from USER_ENTITY userentity0_ where userentity0_.ID=? and userentity0_.REALM_ID=? [50200-173]
11:22:01,442 ERROR [org.keycloak.authentication.AuthenticationProcessor] (default task-10) failed authentication: javax.persistence.PessimisticLockException: could not extract ResultSet
        at org.hibernate.jpa.spi.AbstractEntityManagerImpl.wrapLockException(AbstractEntityManagerImpl.java:1831)
        at org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1720)
        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.JpaUserProvider.getUserById(JpaUserProvider.java:228)
        at org.keycloak.models.cache.DefaultCacheUserProvider.getUserById(DefaultCacheUserProvider.java:132)
        at org.keycloak.models.UserFederationManager.deleteInvalidUser(UserFederationManager.java:111)
        at org.keycloak.models.UserFederationManager.validateAndProxyUser(UserFederationManager.java:134)
        at org.keycloak.models.UserFederationManager.getUserById(UserFederationManager.java:162)
        at org.keycloak.models.sessions.mem.ClientSessionAdapter.getAuthenticatedUser(ClientSessionAdapter.java:192)
        at org.keycloak.authentication.AuthenticationProcessor$Result.getUser(AuthenticationProcessor.java:301)
        at org.keycloak.authentication.authenticators.browser.AbstractFormAuthenticator.validatePassword(AbstractFormAuthenticator.java:176)
        at org.keycloak.authentication.authenticators.browser.UsernamePasswordForm.validateForm(UsernamePasswordForm.java:46)
        at org.keycloak.authentication.authenticators.browser.UsernamePasswordForm.action(UsernamePasswordForm.java:39)
        at org.keycloak.authentication.DefaultAuthenticationFlow.processAction(DefaultAuthenticationFlow.java:59)
        at org.keycloak.authentication.DefaultAuthenticationFlow.processAction(DefaultAuthenticationFlow.java:54)
        at org.keycloak.authentication.AuthenticationProcessor.authenticationAction(AuthenticationProcessor.java:533)
        at org.keycloak.services.resources.LoginActionsService.processFlow(LoginActionsService.java:306)
        at org.keycloak.services.resources.LoginActionsService.processAuthentication(LoginActionsService.java:287)
        at org.keycloak.services.resources.LoginActionsService.authenticateForm(LoginActionsService.java:333)
        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:497)
        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)
        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)
        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.hibernate.PessimisticLockException: could not extract ResultSet
        at org.hibernate.dialect.H2Dialect$2.convert(H2Dialect.java:342)
        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.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:112)
        at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.extract(ResultSetReturnImpl.java:91)
        at org.hibernate.loader.Loader.getResultSet(Loader.java:2066)
        at org.hibernate.loader.Loader.executeQueryStatement(Loader.java:1863)
        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)
        ... 63 more
Caused by: org.h2.jdbc.JdbcSQLException: Timeout trying to lock table "USER_ENTITY"; SQL statement:
select userentity0_.ID as ID1_47_, userentity0_.CREATED_TIMESTAMP as CREATED_2_47_, userentity0_.EMAIL as EMAIL3_47_, userentity0_.EMAIL_CONSTRAINT as EMAIL_CO4_47_, userentity0_.EMAIL_VERIFIED as EMAIL_VE5_47_, userentity0_.ENABLED as ENABLED6_47_, userentity0_.federation_link as federati7_47_, userentity0_.FIRST_NAME as FIRST_NA8_47_, userentity0_.LAST_NAME as LAST_NAM9_47_, userentity0_.REALM_ID as REALM_I10_47_, userentity0_.SERVICE_ACCOUNT_CLIENT_LINK as SERVICE11_47_, userentity0_.TOTP as TOTP12_47_, userentity0_.USERNAME as USERNAM13_47_ from USER_ENTITY userentity0_ where userentity0_.ID=? and userentity0_.REALM_ID=? [50200-173]
        at org.h2.message.DbException.getJdbcSQLException(DbException.java:331)
        at org.h2.message.DbException.get(DbException.java:171)
        at org.h2.message.DbException.get(DbException.java:148)
        at org.h2.table.RegularTable.doLock(RegularTable.java:521)
        at org.h2.table.RegularTable.lock(RegularTable.java:455)
        at org.h2.table.TableFilter.lock(TableFilter.java:145)
        at org.h2.command.dml.Select.queryWithoutCache(Select.java:611)
        at org.h2.command.dml.Query.query(Query.java:314)
        at org.h2.command.dml.Query.query(Query.java:284)
        at org.h2.command.dml.Query.query(Query.java:36)
        at org.h2.command.CommandContainer.query(CommandContainer.java:91)
        at org.h2.command.Command.executeQuery(Command.java:195)
        at org.h2.jdbc.JdbcPreparedStatement.executeQuery(JdbcPreparedStatement.java:106)
        at org.jboss.jca.adapters.jdbc.WrappedPreparedStatement.executeQuery(WrappedPreparedStatement.java:462)
        at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.extract(ResultSetReturnImpl.java:82)
        ... 79 more
==========================================================================================



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