Hi list,
we use OJB 1.0-rc5 together with JBoss 3.2.1 and EJB in a production
environment. The system is up for about one and a half years.
The problem is, that we have to restart the JBoss application server once a
week. This is necessary because new ServerContexts (Logins) can't get a
persistence broker from the pool (stack tarce follows).
I already browsed the list archive and checked our code. I considered that we
close all broker instances. Unfortunately we cannot reproduce the problem in
our develepoment system but our customer is complaining about the problem. I
tried to force it by storing tons of objects and running loops of login and
logout - without success.
By now we restart the application server once a week per cron-job. Since the
Exception was reported after 5 days last week our customer got very angry and
we now want to fix it.
Does anyone know what the reason can be?
How to reproduce it (what causes the problem)?
Solutions?
Thanks
------------------------------------------------------
Peter Juszack
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Our system (production)
Server: Redhat Linux, JBoss-3.2.1, OJB 1.0-rc5, ORACLE 9i
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Our OJB.properties (comments removed)
# OJB.properties -- configuration of the OJB runtime environment
# Version: 1.0
# (c) 2001, 2002, 2003 Apache Software Foundation
# Author: Thomas Mahler and many others
#
repositoryFile=repository.xml
useSerializedRepository=false
serializedRepositoryPath=.
PersistenceBrokerFactoryClass=org.apache.ojb.broker.core.PersistenceBrokerFactoryDefaultImpl
PersistenceBrokerClass=org.apache.ojb.broker.core.PersistenceBrokerImpl
maxActive=100
maxIdle=-1
maxWait=2000
timeBetweenEvictionRunsMillis=-1
minEvictableIdleTimeMillis=1000000
whenExhaustedAction=0
ConnectionFactoryClass=org.apache.ojb.broker.accesslayer.ConnectionFactoryManagedImpl
ConnectionManagerClass=org.apache.ojb.broker.accesslayer.ConnectionManagerImpl
SqlGeneratorClass=org.apache.ojb.broker.accesslayer.sql.SqlGeneratorDefaultImpl
StatementManagerClass=org.apache.ojb.broker.accesslayer.StatementManager
StatementsForClassClass=org.apache.ojb.broker.accesslayer.StatementsForClassImpl
JdbcAccessClass=org.apache.ojb.broker.accesslayer.JdbcAccessImpl
ObjectCacheClass=org.apache.ojb.broker.cache.ObjectCacheEmptyImpl
LockManagerClass=org.apache.ojb.odmg.locking.LockManagerDefaultImpl
LockMapClass=org.apache.ojb.odmg.locking.InMemoryLockMapImpl
LockTimeout=60000
ImplicitLocking=true
LockAssociations=WRITE
LoggerClass=org.apache.ojb.broker.util.logging.PoorMansLoggerImpl
LoggerConfigFile=log4j.properties
ROOT.LogLevel=ERROR
DEFAULT.LogLevel=WARN
org.apache.ojb.broker.core.PersistenceBrokerImpl.LogLevel=WARN
org.apache.ojb.broker.PersistenceBrokerFactory.LogLevel=WARN
org.apache.ojb.broker.metadata.RepositoryXmlHandler.LogLevel=WARN
org.apache.ojb.broker.accesslayer.JdbcAccessImpl.LogLevel=WARN
org.apache.ojb.broker.accesslayer.RsIterator.LogLevel=WARN
org.apache.ojb.broker.accesslayer.StatementsForClassImpl.LogLevel=WARN
org.apache.ojb.broker.accesslayer.sql.SqlGeneratorDefaultImpl.LogLevel=DEBUG
org.apache.ojb.broker.metadata.RepositoryPersistor.LogLevel=WARN
org.apache.ojb.broker.core.PersistenceBrokerFactoryDefaultImpl.LogLevel=WARN
org.apache.ojb.broker.accesslayer.ConnectionFactoryAbstractImpl.LogLevel=ERROR
ODMG.LogLevel=WARN
JDO.LogLevel=DEBUG
performance.LogLevel=INFO
soda.LogLevel=WARN
ConfigurableFactory.LogLevel=WARN
OqlCollectionClass=org.apache.ojb.odmg.collections.DListImpl
SqlInLimit=200
PersistentFieldClass=org.apache.ojb.broker.metadata.fieldaccess.PersistentFieldDirectAccessImpl
OJBTxManagerClass=org.apache.ojb.odmg.JTATxManager
JTATransactionManagerClass=org.apache.ojb.odmg.transaction.JBossTransactionManagerFactory
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
JBoss reports the following stacktrace:
07:55:55,288 ERROR [LogInterceptor] RuntimeException:
java.util.NoSuchElementException
at
org.apache.commons.pool.impl.GenericKeyedObjectPool.borrowObject(GenericKeyedObjectPool.java:758)
at
org.apache.ojb.broker.core.PersistenceBrokerFactoryDefaultImpl.createPersistenceBroker(PersistenceB
rokerFactoryDefaultImpl.java:138)
at
org.apache.ojb.broker.core.PersistenceBrokerFactoryBaseImpl.defaultPersistenceBroker(PersistenceBro
kerFactoryBaseImpl.java:197)
at
de.hkw.lekos.server.core.AbstractSessionBean.getBroker(AbstractSessionBean.java:104)
at
de.hkw.lekos.server.core.AbstractMaintenanceBean.storeObject(AbstractMaintenanceBean.java:292)
at
de.hkw.lekos.server.core.AbstractMaintenanceBean.log(AbstractMaintenanceBean.java:97)
at
de.hkw.lekos.server.ejb.sb.benutzer.BenutzerMaintenanceBean.login(BenutzerMaintenanceBean.java:114)
at sun.reflect.GeneratedMethodAccessor560.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at
org.jboss.ejb.StatelessSessionContainer$ContainerInterceptor.invoke(StatelessSessionContainer.java:
629)
at
org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor
.java:186)
at
org.jboss.ejb.plugins.StatelessSessionInstanceInterceptor.invoke(StatelessSessionInstanceIntercepto
r.java:72)
at
org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:84)
at
org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:243)
at
org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:104)
at
org.jboss.ejb.plugins.SecurityInterceptor.invoke(SecurityInterceptor.java:117)
at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:191)
at
org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderInterceptor.java:122)
at
org.jboss.ejb.StatelessSessionContainer.internalInvoke(StatelessSessionContainer.java:322)
at org.jboss.ejb.Container.invoke(Container.java:674)
at sun.reflect.GeneratedMethodAccessor36.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at
org.jboss.mx.capability.ReflectedMBeanDispatcher.invoke(ReflectedMBeanDispatcher.java:284)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:549)
at
org.jboss.invocation.jrmp.server.JRMPInvoker.invoke(JRMPInvoker.java:359)
at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:261)
at sun.rmi.transport.Transport$1.run(Transport.java:148)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:144)
at
sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:460)
at
sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:701)
at java.lang.Thread.run(Thread.java:534)
rethrown as
org.apache.ojb.broker.PBFactoryException: Borrow broker from pool failed, using
PBKey org.apache.ojb.broker.PB
Key: jcdAlias=default, user=lekos, password=*****
at
org.apache.ojb.broker.core.PersistenceBrokerFactoryDefaultImpl.createPersistenceBroker(PersistenceB
rokerFactoryDefaultImpl.java:156)
at
org.apache.ojb.broker.core.PersistenceBrokerFactoryBaseImpl.defaultPersistenceBroker(PersistenceBro
kerFactoryBaseImpl.java:197)
at
de.hkw.lekos.server.core.AbstractSessionBean.getBroker(AbstractSessionBean.java:104)
at
de.hkw.lekos.server.core.AbstractMaintenanceBean.storeObject(AbstractMaintenanceBean.java:292)
at
de.hkw.lekos.server.core.AbstractMaintenanceBean.log(AbstractMaintenanceBean.java:97)
at
de.hkw.lekos.server.ejb.sb.benutzer.BenutzerMaintenanceBean.login(BenutzerMaintenanceBean.java:114)
at sun.reflect.GeneratedMethodAccessor560.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at
org.jboss.ejb.StatelessSessionContainer$ContainerInterceptor.invoke(StatelessSessionContainer.java:
629)
at
org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor
.java:186)
at
org.jboss.ejb.plugins.StatelessSessionInstanceInterceptor.invoke(StatelessSessionInstanceIntercepto
r.java:72)
at
org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:84)
at
org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:243)
at
org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:104)
at
org.jboss.ejb.plugins.SecurityInterceptor.invoke(SecurityInterceptor.java:117)
at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:191)
at
org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderInterceptor.java:122)
at
org.jboss.ejb.StatelessSessionContainer.internalInvoke(StatelessSessionContainer.java:322)
at org.jboss.ejb.Container.invoke(Container.java:674)
at sun.reflect.GeneratedMethodAccessor36.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at
org.jboss.mx.capability.ReflectedMBeanDispatcher.invoke(ReflectedMBeanDispatcher.java:284)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:549)
at
org.jboss.invocation.jrmp.server.JRMPInvoker.invoke(JRMPInvoker.java:359)
at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:261)
at sun.rmi.transport.Transport$1.run(Transport.java:148)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:144)
at
sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:460)
at
sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:701)
at java.lang.Thread.run(Thread.java:534)
Caused by: java.util.NoSuchElementException
at
org.apache.commons.pool.impl.GenericKeyedObjectPool.borrowObject(GenericKeyedObjectPool.java:758)
at
org.apache.ojb.broker.core.PersistenceBrokerFactoryDefaultImpl.createPersistenceBroker(PersistenceB
rokerFactoryDefaultImpl.java:138)
... 35 more
