Bugs item #619171, was opened at 2002-10-06 09:11
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Category: JBossServer
Group: v3.0 Rabbit Hole
Status: Open
Resolution: None
Priority: 5
Submitted By: Timur Zambalayev (timurz)
Assigned to: Nobody/Anonymous (nobody)
Summary: Logging Deadlock
Initial Comment:
What happens. Under certain circumstances JBoss can
get into a deadlock.
How to repro (tried JBoss 3.0.3 on Win2k, also
experienced it with JBoss 3.0.0 on Solaris 7).
1) Install JBoss 3.0.3.
2) Run "ant clean deploy" (see the attached zip).
3) Start JBoss.
4) Run "ant fooClient".
5) JBoss deadlocked (see below).
Workaround.
1) Don't configure log4j (e.g. BasicConfigurator.configure
()) inside the EJB server.
2) After that don't use System.out.println().
=============================
Found one Java-level deadlock:
=============================
"RMI TCP Connection(3)-192.168.2.10":
waiting to lock monitor 0x8fe86c (object 0x2f15f28, a
org.apache.log4j.spi.RootCategory),
which is held by "RMI TCP Connection(2)-192.168.2.10"
"RMI TCP Connection(2)-192.168.2.10":
waiting to lock monitor 0x8fe74c (object 0x30e0b08, a
org.jboss.logging.util.CategoryStream),
which is held by "RMI TCP Connection(3)-192.168.2.10"
Java stack information for the threads listed above:
=========================================
==========
"RMI TCP Connection(3)-192.168.2.10":
at org.apache.log4j.Category.callAppenders
(Category.java:188)
- waiting to lock <02F15F28> (a
org.apache.log4j.spi.RootCategory)
at org.apache.log4j.Category.forcedLog
(Category.java:375)
at org.apache.log4j.Category.log
(Category.java:850)
at org.jboss.logging.util.CategoryStream.write
(CategoryStream.java:133)
- locked <030E0B08> (a
org.jboss.logging.util.CategoryStream)
at
org.jboss.logging.util.CategoryStream.println
(CategoryStream.java:81)
at FooBean.writeToSystemOut
(FooBean.java:34)
at
sun.reflect.NativeMethodAccessorImpl.invoke0(Native
Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke
(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke
(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke
(Method.java:324)
at
org.jboss.ejb.StatelessSessionContainer$ContainerInterc
eptor.invoke(StatelessSessionContainer.java:660)
at
org.jboss.resource.connectionmanager.CachedConnectio
nInterceptor.invoke
(CachedConnectionInterceptor.java:186)
at
org.jboss.ejb.plugins.StatelessSessionInstanceIntercept
or.invoke(StatelessSessionInstanceInterceptor.java:77)
at
org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext
(AbstractTxInterceptor.java:107)
at
org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransacti
ons(TxInterceptorCMT.java:178)
at
org.jboss.ejb.plugins.TxInterceptorCMT.invoke
(TxInterceptorCMT.java:60)
at
org.jboss.ejb.plugins.SecurityInterceptor.invoke
(SecurityInterceptor.java:130)
at org.jboss.ejb.plugins.LogInterceptor.invoke
(LogInterceptor.java:203)
at
org.jboss.ejb.StatelessSessionContainer.invoke
(StatelessSessionContainer.java:313)
at org.jboss.ejb.Container.invoke
(Container.java:712)
at
org.jboss.mx.server.MBeanServerImpl.invoke
(MBeanServerImpl.java:517)
at
org.jboss.invocation.jrmp.server.JRMPInvoker.invoke
(JRMPInvoker.java:381)
at
sun.reflect.NativeMethodAccessorImpl.invoke0(Native
Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke
(NativeMethodAccessorImpl.java:39)
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.r
un(TCPTransport.java:701)
at java.lang.Thread.run(Thread.java:536)
"RMI TCP Connection(2)-192.168.2.10":
at java.io.PrintStream.flush
(PrintStream.java:135)
- waiting to lock <030E0B08> (a
org.jboss.logging.util.CategoryStream)
at
sun.nio.cs.StreamEncoder$CharsetSE.implFlush
(StreamEncoder.java:408)
at sun.nio.cs.StreamEncoder.flush
(StreamEncoder.java:150)
- locked <02A91868> (a
java.io.OutputStreamWriter)
at java.io.OutputStreamWriter.flush
(OutputStreamWriter.java:213)
at org.apache.log4j.helpers.QuietWriter.flush
(QuietWriter.java:49)
at
org.apache.log4j.WriterAppender.subAppend
(WriterAppender.java:311)
at org.apache.log4j.WriterAppender.append
(WriterAppender.java:150)
at
org.apache.log4j.AppenderSkeleton.doAppend
(AppenderSkeleton.java:222)
- locked <02A90198> (a
org.apache.log4j.ConsoleAppender)
at
org.apache.log4j.helpers.AppenderAttachableImpl.appen
dLoopOnAppenders(AppenderAttachableImpl.java:57)
at org.apache.log4j.Category.callAppenders
(Category.java:190)
- locked <02F15F28> (a
org.apache.log4j.spi.RootCategory)
at org.apache.log4j.Category.forcedLog
(Category.java:375)
at org.apache.log4j.Category.log
(Category.java:850)
at org.jboss.logging.Logger.info
(Logger.java:149)
at FooBean.writeToLogger(FooBean.java:40)
at
sun.reflect.NativeMethodAccessorImpl.invoke0(Native
Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke
(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke
(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke
(Method.java:324)
at
org.jboss.ejb.StatelessSessionContainer$ContainerInterc
eptor.invoke(StatelessSessionContainer.java:660)
at
org.jboss.resource.connectionmanager.CachedConnectio
nInterceptor.invoke
(CachedConnectionInterceptor.java:186)
at
org.jboss.ejb.plugins.StatelessSessionInstanceIntercept
or.invoke(StatelessSessionInstanceInterceptor.java:77)
at
org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext
(AbstractTxInterceptor.java:107)
at
org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransacti
ons(TxInterceptorCMT.java:178)
at
org.jboss.ejb.plugins.TxInterceptorCMT.invoke
(TxInterceptorCMT.java:60)
at
org.jboss.ejb.plugins.SecurityInterceptor.invoke
(SecurityInterceptor.java:130)
at org.jboss.ejb.plugins.LogInterceptor.invoke
(LogInterceptor.java:203)
at
org.jboss.ejb.StatelessSessionContainer.invoke
(StatelessSessionContainer.java:313)
at org.jboss.ejb.Container.invoke
(Container.java:712)
at
org.jboss.mx.server.MBeanServerImpl.invoke
(MBeanServerImpl.java:517)
at
org.jboss.invocation.jrmp.server.JRMPInvoker.invoke
(JRMPInvoker.java:381)
at
sun.reflect.NativeMethodAccessorImpl.invoke0(Native
Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke
(NativeMethodAccessorImpl.java:39)
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.r
un(TCPTransport.java:701)
at java.lang.Thread.run(Thread.java:536)
Found 1 deadlock.
----------------------------------------------------------------------
Comment By: Jerome Lacoste (lacostej)
Date: 2002-10-15 10:59
Message:
Logged In: YES
user_id=81510
patch in bug 623223
----------------------------------------------------------------------
Comment By: Jerome Lacoste (lacostej)
Date: 2002-10-14 23:18
Message:
Logged In: YES
user_id=81510
Heu. Spoken too fast. Fix not coming.
----------------------------------------------------------------------
Comment By: Jerome Lacoste (lacostej)
Date: 2002-10-14 22:55
Message:
Logged In: YES
user_id=81510
duplicate of bug 623223. Fix coming.
----------------------------------------------------------------------
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