Weblogic 10上的EJB3-首次数据库访问超时

Question

我有一个EJB3应用程序，可以在各种环境中进行部署，即带有Apache Web服务器的Windows Weblogic 10和带有IIS Web服务器的Linux Weblogic 10。 我正在使用EclipseLink作为持久层。 在Windows计算机上，该数据库始终为Oracle 9.2。

我的persistence.xml将我（其中“我”是会话bean）连接到一个或多个Oracle数据源。 有3个会话bean用于访问3个数据源，每个1个。

在Windows！Weblogic（这是开发环境）上，没有问题，但是当我在Linux机器（测试和生产环境）上部署时，所有会话bean在第一次访问数据库时都会给出一次或两次超时异常，然后可以正常工作。 根据Weblogic控制台，任何配置都是相同的，而且我没有生产环境上的设置的写权限，因此我还必须保持开发与测试的一致性。 因此，Weblogic控制台上的任何配置设置（例如增加事务超时）都不会起作用。

我在这里想念什么吗？ 谢谢！

编辑 ：这是示例异常堆栈跟踪。 每次都是一样的。

2012-01-11 14:31:35,548 ERROR [org.eclipse.persistence.session.file:/wls001/beasys/wls10/config/dwcrete/servers/i1wcrete2/tmp/_WL_user/maretcEAR/u5f4ij/dataProvider-3.0.jar_MaretcSecurityDS] internalLog 648 - Jan 11, 2012 2:31:34 PM org.eclipse.persistence.session.file:/wls001/beasys/wls10/config/dwcrete/servers/i1wcrete2/tmp/_WL_user/maretcEAR/u5f4ij/dataProvider-3.0.jar_MaretcSecurityDS ServerSession(39783972) Thread(34)
SEVERE: Local Exception Stack: 
Exception [EclipseLink-4002] (Eclipse Persistence Services - 2.2.0.v20110202-r8913): org.eclipse.persistence.exceptions.DatabaseException
Internal Exception: java.sql.SQLException: Transaction BEA1-47235794E4F50336CEC4 not active anymore. tx status = Rolled back. [Reason=weblogic.transaction.internal.TimedOutException: Transaction timed out after 31 seconds 
BEA1-47235794E4F50336CEC4]
Error Code: 0
    at org.eclipse.persistence.exceptions.DatabaseException.sqlException(DatabaseException.java:309)
    at org.eclipse.persistence.sessions.JNDIConnector.connect(JNDIConnector.java:138)
    at org.eclipse.persistence.sessions.JNDIConnector.connect(JNDIConnector.java:94)
    at org.eclipse.persistence.sessions.DatasourceLogin.connectToDatasource(DatasourceLogin.java:162)
    at org.eclipse.persistence.internal.databaseaccess.DatasourceAccessor.connectInternal(DatasourceAccessor.java:330)
    at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.connectInternal(DatabaseAccessor.java:291)
    at org.eclipse.persistence.internal.databaseaccess.DatasourceAccessor.connect(DatasourceAccessor.java:418)
    at org.eclipse.persistence.sessions.server.ConnectionPool.buildConnection(ConnectionPool.java:167)
    at org.eclipse.persistence.sessions.server.ExternalConnectionPool.startUp(ExternalConnectionPool.java:130)
    at org.eclipse.persistence.sessions.server.ServerSession.connect(ServerSession.java:484)
    at org.eclipse.persistence.internal.sessions.DatabaseSessionImpl.login(DatabaseSessionImpl.java:640)
    at org.eclipse.persistence.internal.jpa.EntityManagerFactoryProvider.login(EntityManagerFactoryProvider.java:235)
    at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.deploy(EntityManagerSetupImpl.java:394)
    at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.getServerSession(EntityManagerFactoryImpl.java:185)
    at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.createEntityManagerImpl(EntityManagerFactoryImpl.java:242)
    at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:230)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:585)
    at weblogic.deployment.EntityManagerFactoryProxyImpl.invoke(EntityManagerFactoryProxyImpl.java:77)
    at $Proxy435.createEntityManager(Unknown Source)
    at weblogic.deployment.TransactionalEntityManagerProxyImpl.newPersistenceContext(TransactionalEntityManagerProxyImpl.java:74)
    at weblogic.deployment.BasePersistenceContextProxyImpl.getPersistenceContext(BasePersistenceContextProxyImpl.java:147)
    at weblogic.deployment.BasePersistenceContextProxyImpl.invoke(BasePersistenceContextProxyImpl.java:88)
    at weblogic.deployment.TransactionalEntityManagerProxyImpl.invoke(TransactionalEntityManagerProxyImpl.java:90)
    at weblogic.deployment.BasePersistenceContextProxyImpl.invoke(BasePersistenceContextProxyImpl.java:80)
    at $Proxy436.getDelegate(Unknown Source)
    at it.enel.base.ejb.DataProvider.execute(DataProvider.java:55)
    at it.enel.base.ejb.DataProvider.execute(DataProvider.java:42)
    at it.enel.base.ejb.DataProvider.createAndExecuteCheck(DataProvider.java:162)
    at it.enel.base.ejb.DataProvider.checkDomain(DataProvider.java:183)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:585)
    at com.bea.core.repackaged.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:281)
    at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:187)
    at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:154)
    at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:126)
    at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:114)
    at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:176)
    at weblogic.ejb.container.injection.EnvironmentInterceptor.invoke(EnvironmentInterceptor.java:68)
    at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:176)
    at com.bea.core.repackaged.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)
    at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:176)
    at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:126)
    at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:114)
    at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:176)
    at com.bea.core.repackaged.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:210)
    at $Proxy446.checkDomain(Unknown Source)
    at it.enel.base.ejb.DataProviderEJB_bfyhct_DataProviderRemoteImpl.checkDomain(DataProviderEJB_bfyhct_DataProviderRemoteImpl.java:145)
    at it.enel.base.ejb.DataProviderEJB_bfyhct_DataProviderRemoteImpl_CBV.checkDomain(Unknown Source)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:585)
    at weblogic.ejb.container.internal.RemoteBusinessIntfProxy.invoke(RemoteBusinessIntfProxy.java:63)
    at $Proxy437.checkDomain(Unknown Source)
    at it.enel.maretc.business.transfer.SecurityModel.checkDomain(SecurityModel.java:71)
    at it.enel.maretc.struts2.business.model.user.User.isDomainValid(User.java:102)
    at it.enel.maretc.struts2.action.login.LoginInterceptor.intercept(LoginInterceptor.java:132)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
    at com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:176)
    at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
    at com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:263)
    at org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:68)
    at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
    at com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:133)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
    at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:207)
    at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
    at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:207)
    at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
    at com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:190)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
    at org.apache.struts2.interceptor.MultiselectInterceptor.intercept(MultiselectInterceptor.java:75)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
    at org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:94)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
    at org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:243)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
    at com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:100)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
    at com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:141)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
    at org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:267)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
    at com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:142)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
    at com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:166)
    at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
    at com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:176)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
    at org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:164)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
    at com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:190)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
    at com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:187)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
    at org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:52)
    at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:485)
    at org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:395)
    at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:42)
    at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3393)
    at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
    at weblogic.security.service.SecurityManager.runAs(Unknown Source)
    at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2140)
    at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2046)
    at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1366)
    at weblogic.work.ExecuteThread.execute(ExecuteThread.java:200)
    at weblogic.work.ExecuteThread.run(ExecuteThread.java:172)
Caused by: java.sql.SQLException: Transaction BEA1-47235794E4F50336CEC4 not active anymore. tx status = Rolled back. [Reason=weblogic.transaction.internal.TimedOutException: Transaction timed out after 31 seconds 
BEA1-47235794E4F50336CEC4]
    at weblogic.jdbc.jts.Driver.getTransaction(Driver.java:540)
    at weblogic.jdbc.jts.Driver.connect(Driver.java:109)
    at weblogic.jdbc.common.internal.RmiDataSource.getConnection(RmiDataSource.java:339)
    at org.eclipse.persistence.sessions.JNDIConnector.connect(JNDIConnector.java:126)
    ... 112 more

Answer 1

我不认为为什么这两台机器会有区别，但是需要研究一下。 一种变通办法是使用eclipselink.deploy-on-startup标志，其值为true，这将导致某些EclipseLink初始化被预先完成，而不是在首次访问时进行。