Discoverer Viewer Error - Duplicate child ir196142 - Nested exception: Dupl

Hi Experts,
One of my discoverer report is running fine in discoverer desktop.but while running it on discoverer viewer I am facing the below error
The application encounters an invalid state. .
- Duplicate child ir196142 - Nested exception: Duplicate child ir196142
- Duplicate child ir196142
Oracle BI Discoverer Viewer cannot find the data necessary to display the results of this event. Correct any errors, and try again.
And same Report I tried in Discoverer Plus the I am facing the error
An internal error occurred if this persists, please contact your discoverer manager.
Regards,
Brajesh

Hi Rod,
Thanks a lot for quick reply,
I tried to save the report as report.dis file then again saved it on database with different name but still facing the same problem.
Regards,
Brajesh

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                    at org.glassfish.persistence.jpa.JPADeployer$1.visitPUD(JPADeployer.java:224)
                    at org.glassfish.persistence.jpa.JPADeployer$PersistenceUnitDescriptorIterator.iteratePUDs(JPADeployer.java:495)
                    at org.glassfish.persistence.jpa.JPADeployer.createEMFs(JPADeployer.java:233)
                    at org.glassfish.persistence.jpa.JPADeployer.prepare(JPADeployer.java:168)
                    at com.sun.enterprise.v3.server.ApplicationLifecycle.prepareModule(ApplicationLifecycle.java:871)
                    at com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:410)
                    at com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:240)
                    at org.glassfish.deployment.admin.DeployCommand.execute(DeployCommand.java:389)
                    at com.sun.enterprise.v3.admin.CommandRunnerImpl$1.execute(CommandRunnerImpl.java:348)
                    at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:363)
                    at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:1085)
                    at com.sun.enterprise.v3.admin.CommandRunnerImpl.access$1200(CommandRunnerImpl.java:95)
                    at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1291)
                    at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1259)
                    at com.sun.enterprise.v3.admin.AdminAdapter.doCommand(AdminAdapter.java:461)
                    at com.sun.enterprise.v3.admin.AdminAdapter.service(AdminAdapter.java:212)
                    at com.sun.grizzly.tcp.http11.GrizzlyAdapter.service(GrizzlyAdapter.java:179)
                    at com.sun.enterprise.v3.server.HK2Dispatcher.dispath(HK2Dispatcher.java:117)
                    at com.sun.enterprise.v3.services.impl.ContainerMapper$Hk2DispatcherCallable.call(ContainerMapper.java:354)
                    at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:195)
                    at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:849)
                    at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:746)
                    at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1045)
                    at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:228)
                    at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
                    at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
                    at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
                    at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
                    at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
                    at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
                    at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
                    at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
                    at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
                    at java.lang.Thread.run(Thread.java:619)
    Caused by: java.sql.SQLRecoverableException: Closed Connection
                    at oracle.jdbc.driver.PhysicalConnection.getMetaData(PhysicalConnection.java:4508)
                    at com.sun.gjc.spi.base.ConnectionHolder.getMetaData(ConnectionHolder.java:345)
                    at org.eclipse.persistence.internal.sessions.DatabaseSessionImpl.loginAndDetectDatasource(DatabaseSessionImpl.java:589)
                    ... 42 more
    SEVERE: Exception while invoking class org.glassfish.persistence.jpa.JPADeployer prepare method
    SEVERE: Exception while preparing the app
    SEVERE: Exception [EclipseLink-4019] (Eclipse Persistence Services - 2.3.2.v20111125-r10461): org.eclipse.persistence.exceptions.DatabaseException
    Exception Description: Error while obtaining information about the database. Refer to the nested exception for more details.
    javax.persistence.PersistenceException: Exception [EclipseLink-4019] (Eclipse Persistence Services - 2.3.2.v20111125-r10461): org.eclipse.persistence.exceptions.DatabaseException
    Exception Description: Error while obtaining information about the database. Refer to the nested exception for more details.
                    at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.deploy(EntityManagerSetupImpl.java:517)
                    at org.eclipse.persistence.internal.jpa.EntityManagerFactoryDelegate.getDatabaseSession(EntityManagerFactoryDelegate.java:188)
                    at org.eclipse.persistence.internal.jpa.EntityManagerFactoryDelegate.createEntityManagerImpl(EntityManagerFactoryDelegate.java:277)
                    at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.createEntityManagerImpl(EntityManagerFactoryImpl.java:294)
                    at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:272)
                    at org.glassfish.persistence.jpa.PersistenceUnitLoader.loadPU(PersistenceUnitLoader.java:211)
                    at org.glassfish.persistence.jpa.PersistenceUnitLoader.<init>(PersistenceUnitLoader.java:120)
                    at org.glassfish.persistence.jpa.JPADeployer$1.visitPUD(JPADeployer.java:224)
                    at org.glassfish.persistence.jpa.JPADeployer$PersistenceUnitDescriptorIterator.iteratePUDs(JPADeployer.java:495)
                    at org.glassfish.persistence.jpa.JPADeployer.createEMFs(JPADeployer.java:233)
                    at org.glassfish.persistence.jpa.JPADeployer.prepare(JPADeployer.java:168)
                    at com.sun.enterprise.v3.server.ApplicationLifecycle.prepareModule(ApplicationLifecycle.java:871)
                    at com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:410)
                    at com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:240)
                    at org.glassfish.deployment.admin.DeployCommand.execute(DeployCommand.java:389)
                    at com.sun.enterprise.v3.admin.CommandRunnerImpl$1.execute(CommandRunnerImpl.java:348)
                    at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:363)
                    at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:1085)
                    at com.sun.enterprise.v3.admin.CommandRunnerImpl.access$1200(CommandRunnerImpl.java:95)
                    at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1291)
                    at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1259)
                    at com.sun.enterprise.v3.admin.AdminAdapter.doCommand(AdminAdapter.java:461)
                    at com.sun.enterprise.v3.admin.AdminAdapter.service(AdminAdapter.java:212)
                    at com.sun.grizzly.tcp.http11.GrizzlyAdapter.service(GrizzlyAdapter.java:179)
                    at com.sun.enterprise.v3.server.HK2Dispatcher.dispath(HK2Dispatcher.java:117)
                    at com.sun.enterprise.v3.services.impl.ContainerMapper$Hk2DispatcherCallable.call(ContainerMapper.java:354)
                    at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:195)
                    at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:849)
                    at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:746)
                    at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1045)
                    at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:228)
                    at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
                    at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
                    at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
                    at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
                    at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
                    at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
                    at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
                    at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
                    at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
                    at java.lang.Thread.run(Thread.java:619)
    Caused by: Exception [EclipseLink-4019] (Eclipse Persistence Services - 2.3.2.v20111125-r10461): org.eclipse.persistence.exceptions.DatabaseException
    Exception Description: Error while obtaining information about the database. Refer to the nested exception for more details.
                    at org.eclipse.persistence.exceptions.DatabaseException.errorRetrieveDbMetadataThroughJDBCConnection(DatabaseException.java:361)
                    at org.eclipse.persistence.internal.sessions.DatabaseSessionImpl.loginAndDetectDatasource(DatabaseSessionImpl.java:602)
                    at org.eclipse.persistence.internal.jpa.EntityManagerFactoryProvider.login(EntityManagerFactoryProvider.java:206)
                    at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.deploy(EntityManagerSetupImpl.java:488)
                    ... 40 more
    Caused by: java.sql.SQLRecoverableException: Closed Connection
                    at oracle.jdbc.driver.PhysicalConnection.getMetaData(PhysicalConnection.java:4508)
                    at com.sun.gjc.spi.base.ConnectionHolder.getMetaData(ConnectionHolder.java:345)
                    at org.eclipse.persistence.internal.sessions.DatabaseSessionImpl.loginAndDetectDatasource(DatabaseSessionImpl.java:589)
                    ... 42 more
    SEVERE: Exception while preparing the app : Exception [EclipseLink-4019] (Eclipse Persistence Services - 2.3.2.v20111125-r10461): org.eclipse.persistence.exceptions.DatabaseException
    Exception Description: Error while obtaining information about the database. Refer to the nested exception for more details.
    Local Exception Stack:
    Exception [EclipseLink-4019] (Eclipse Persistence Services - 2.3.2.v20111125-r10461): org.eclipse.persistence.exceptions.DatabaseException
    Exception Description: Error while obtaining information about the database. Refer to the nested exception for more details.
                    at org.eclipse.persistence.exceptions.DatabaseException.errorRetrieveDbMetadataThroughJDBCConnection(DatabaseException.java:361)
                    at org.eclipse.persistence.internal.sessions.DatabaseSessionImpl.loginAndDetectDatasource(DatabaseSessionImpl.java:602)
                    at org.eclipse.persistence.internal.jpa.EntityManagerFactoryProvider.login(EntityManagerFactoryProvider.java:206)
                    at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.deploy(EntityManagerSetupImpl.java:488)
                    at org.eclipse.persistence.internal.jpa.EntityManagerFactoryDelegate.getDatabaseSession(EntityManagerFactoryDelegate.java:188)
                    at org.eclipse.persistence.internal.jpa.EntityManagerFactoryDelegate.createEntityManagerImpl(EntityManagerFactoryDelegate.java:277)
                    at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.createEntityManagerImpl(EntityManagerFactoryImpl.java:294)
                    at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:272)
                    at org.glassfish.persistence.jpa.PersistenceUnitLoader.loadPU(PersistenceUnitLoader.java:211)
                    at org.glassfish.persistence.jpa.PersistenceUnitLoader.<init>(PersistenceUnitLoader.java:120)
                    at org.glassfish.persistence.jpa.JPADeployer$1.visitPUD(JPADeployer.java:224)
                    at org.glassfish.persistence.jpa.JPADeployer$PersistenceUnitDescriptorIterator.iteratePUDs(JPADeployer.java:495)
                    at org.glassfish.persistence.jpa.JPADeployer.createEMFs(JPADeployer.java:233)
                    at org.glassfish.persistence.jpa.JPADeployer.prepare(JPADeployer.java:168)
                    at com.sun.enterprise.v3.server.ApplicationLifecycle.prepareModule(ApplicationLifecycle.java:871)
                    at com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:410)
                    at com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:240)
                    at org.glassfish.deployment.admin.DeployCommand.execute(DeployCommand.java:389)
                    at com.sun.enterprise.v3.admin.CommandRunnerImpl$1.execute(CommandRunnerImpl.java:348)
                    at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:363)
                    at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:1085)
                    at com.sun.enterprise.v3.admin.CommandRunnerImpl.access$1200(CommandRunnerImpl.java:95)
                    at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1291)
                    at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1259)
                    at com.sun.enterprise.v3.admin.AdminAdapter.doCommand(AdminAdapter.java:461)
                    at com.sun.enterprise.v3.admin.AdminAdapter.service(AdminAdapter.java:212)
                    at com.sun.grizzly.tcp.http11.GrizzlyAdapter.service(GrizzlyAdapter.java:179)
                    at com.sun.enterprise.v3.server.HK2Dispatcher.dispath(HK2Dispatcher.java:117)
                    at com.sun.enterprise.v3.services.impl.ContainerMapper$Hk2DispatcherCallable.call(ContainerMapper.java:354)
                    at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:195)
                    at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:849)
                    at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:746)
                    at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1045)
                    at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:228)
                    at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
                    at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
                    at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
                    at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
                    at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
                    at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
                    at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
                    at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
                    at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
                    at java.lang.Thread.run(Thread.java:619)
    Caused by: java.sql.SQLRecoverableException: Closed Connection
                    at oracle.jdbc.driver.PhysicalConnection.getMetaData(PhysicalConnection.java:4508)
                    at com.sun.gjc.spi.base.ConnectionHolder.getMetaData(ConnectionHolder.java:345)
                    at org.eclipse.persistence.internal.sessions.DatabaseSessionImpl.loginAndDetectDatasource(DatabaseSessionImpl.java:589)
                    ... 42 morethanks,
    -Hoang Long

    r035198x wrote:
    Yep, the appserver got hold of a usable connection but the connection was closed before the appserver had finished/committed with it. It could be that the connection was closed by the database or some firewall timeout setting.
    A good start is to investigate options of configuring your appserver's connection eviction policies including forcing a validation SQL to be executed when a connection is acquired. Make sure that such a query doesn't impact on performance and have some performance and integration testing before rolling out.i found that if i close the computer which causes this issue, hence other dev computers can deploy normally.
    "deploy" here i mean deploy to a running instance on each dev's machine.
    From this, i would guess the common database server itself rejects connection from clients.
    I will try to investigate more if i am missing something.
    And here i found a link that possibly a first good attempt:
    [http://www.eclipse.org/forums/index.php/m/505809/]
    EclipseLink automatically recovers from communication failures, but there is little we can do to diagnose the failure. We basically execute a query and have to wait for the JDBC driver, or DataSource's response, if it hangs for 10minutes, then we are waiting. You could set the JDBC timeout hint on your query, but whether the JDBC driver honors this is up to the driver. You should see the SQLException in your logs, provided your log level is warning or lower.
    If you cannot fix your firewall, they you could change your connection pool settings to use a min number of connections of 0, so there will never be idle connections. But then you will be reconnecting a lot.
    You could also use a third party connection pool or DataSource that supports a timeout setting on the pooled connections, or spawn a thread in your application the clears the connection pool every 30minutes.regards,
    -HL

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