Bugs item #796177, was opened at 2003-08-27 19:00
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Category: JBossCMP
Group: v3.2
Status: Open
Resolution: None
Priority: 5
Submitted By: Jari Juslin (zds0)
Assigned to: Nobody/Anonymous (nobody)
Summary: JBoss failes to remove lock on CMP beans w/o transaction
Initial Comment:
JBoss 3.2.1, Red Had Linux 6.2, Sun JVM 1.4.2 for Linux
I have EJB 2.0 CMP entity bean, that was accessed both
with and without transaction. When two threads
performed operations on it's fields at the same time,
it sometimes ended up throwing exception like the one
below.
The wort part is that JBoss was not able to recover
from this: subsequent calls to that bean always threw
the same exception over and over again. This
effectively put our system out of operation, since no
retry could get through and bean clients were stuck.
We now added transactions to all the beans
participating to these operations, but this is still
something that should be corrected.
AFAIK the EJB 2.0 spec strongly recommends to always
use transactions with CMP entity beans, and lets
engines not to support accessing CMP beans w/o
transaction, but if JBoss chooses to do so it should
not let user deploy beans it can't handle correctly.
2003-08-24 03:54:38,689 WARN
[org.jboss.tm.TransactionImpl] Transaction
TransactionImpl:XidImpl [FormatId=257,
GlobalId=www.matchem.com//540079, BranchQual=] timed
out. status=STATUS_ACTIVE
2003-08-24 03:54:38,690 WARN
[org.jboss.tm.TransactionImpl] Lock contention,
tx=TransactionImpl:XidImpl [FormatId=257,
GlobalId=www.matchem.com//540079, BranchQual=]
2003-08-24 03:54:38,691 ERROR [org.jboss.ejb.BeanLock]
PoolThread-10Saw rolled back tx=TransactionImpl:XidImpl
[FormatId=257, GlobalId=www.matchem.com//540079,
BranchQual=] waiting for txLock
2003-08-24 03:54:38,691 ERROR [org.jboss.ejb.BeanLock]
removing bean lock and it has tx set! QPL
bean=MITVCharacter id=[.158285.]
tx=TransactionImpl:XidImpl [FormatId=257,
GlobalId=www.matchem.com//540019, BranchQual=]
synched=null timeout=5000 queue=[]
2003-08-24 03:54:38,692 ERROR
[org.jboss.ejb.plugins.LogInterceptor]
TransactionRolledbackLocalException, causedBy:
java.lang.IllegalStateException: removing bean lock and
it has tx set!
at
org.jboss.ejb.plugins.lock.QueuedPessimisticEJBLock.removeRef(QueuedPessimisticEJBLock.java:430)
at
org.jboss.ejb.BeanLockManager.removeLockRef(BeanLockManager.java:107)
at
org.jboss.ejb.plugins.EntityLockInterceptor.invoke(EntityLockInterceptor.java:106)
at
org.jboss.ejb.plugins.EntityCreationInterceptor.invoke(EntityCreationInterceptor.java:53)
at
org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:84)
at
org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:273)
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.EntityContainer.internalInvoke(EntityContainer.java:483)
at
org.jboss.ejb.Container.invoke(Container.java:674)
at
org.jboss.ejb.plugins.local.BaseLocalProxyFactory.invoke(BaseLocalProxyFactory.java:353)
at
org.jboss.ejb.plugins.local.EntityProxy.invoke(EntityProxy.java:38)
at $Proxy170.getRealName(Unknown Source)
at
com.matchem.mitv.common.tvchat.TVChatShowComponentBean.getNewChatEntries(TVChatShowComponentBean.java:273)
at
sun.reflect.GeneratedMethodAccessor63.invoke(Unknown
Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at
org.jboss.ejb.StatefulSessionContainer$ContainerInterceptor.invoke(StatefulSessionContainer.java:878)
at
org.jboss.ejb.plugins.SecurityInterceptor.invoke(SecurityInterceptor.java:117)
at
org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.java:186)
at
org.jboss.ejb.plugins.StatefulSessionInstanceInterceptor.invoke(StatefulSessionInstanceInterceptor.java:271)
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.LogInterceptor.invoke(LogInterceptor.java:191)
at
org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderInterceptor.java:122)
at
org.jboss.ejb.StatefulSessionContainer.internalInvoke(StatefulSessionContainer.java:410)
at
org.jboss.ejb.Container.invoke(Container.java:674)
at
sun.reflect.GeneratedMethodAccessor50.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.http.server.HttpInvoker.invoke(HttpInvoker.java:163)
at
sun.reflect.GeneratedMethodAccessor62.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.http.servlet.InvokerServlet.processRequest(InvokerServlet.java:132)
at
org.jboss.invocation.http.servlet.InvokerServlet.doPost(InvokerServlet.java:171)
at
javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
at
javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at
org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:360)
at
org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:294)
at
org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:558)
at
org.mortbay.http.HttpContext.handle(HttpContext.java:1714)
at
org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:507)
at
org.mortbay.http.HttpContext.handle(HttpContext.java:1664)
at
org.mortbay.http.HttpServer.service(HttpServer.java:863)
at org.jboss.jetty.Jetty.service(Jetty.java:460)
at
org.mortbay.http.HttpConnection.service(HttpConnection.java:775)
at
org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:939)
at
org.mortbay.http.HttpConnection.handle(HttpConnection.java:792)
at
org.mortbay.http.SocketListener.handleConnection(SocketListener.java:201)
at
org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:289)
at
org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:455)
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