[JBoss-user] [Clustering/JBoss] - Re: Strange exception in HTTP-Session replication

2005-12-17 Thread [EMAIL PROTECTED] 
anonymous wrote : 
  | Maybe this happens if I try to modify a HashMap that is stored in the 
ClusteredSession object while it is replicated?!

There was no synchronization on the attribute Map itself while it was being 
serialized for replication, so concurrently adding/removing an attribute could 
raise an exception.  This is a bug in 4.0.3 and 4.0.3SP1, see 
http://jira.jboss.com/jira/browse/JBAS-2571.  This is fixed in CVS.

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[JBoss-user] [Clustering/JBoss] - Re: Strange exception in HTTP-Session replication

2005-11-17 Thread pflapf 
Hi!
Has anyone an idea on that problem?


I also found the following exception and I'm wondering if both belong together 
in any way ...

09:39:18,926 INFO  [STDOUT] java.util.ConcurrentModificationException
09:39:18,928 INFO  [STDOUT] at 
java.util.HashMap$HashIterator.nextEntry(HashMap.java:782)
09:39:18,928 INFO  [STDOUT] at 
java.util.HashMap$EntryIterator.next(HashMap.java:824)
09:39:18,928 INFO  [STDOUT] at 
java.util.HashMap.writeObject(HashMap.java:978)
09:39:18,928 INFO  [STDOUT] at 
sun.reflect.GeneratedMethodAccessor73.invoke(Unknown Source)
09:39:18,929 INFO  [STDOUT] at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
09:39:18,929 INFO  [STDOUT] at 
java.lang.reflect.Method.invoke(Method.java:324)
09:39:18,929 INFO  [STDOUT] at 
java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:809)
09:39:18,929 INFO  [STDOUT] at 
java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1296)
09:39:18,929 INFO  [STDOUT] at 
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1247)
09:39:18,930 INFO  [STDOUT] at 
java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1052)
09:39:18,930 INFO  [STDOUT] at 
java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:278)
09:39:18,930 INFO  [STDOUT] at 
org.jboss.web.tomcat.tc5.session.SessionBasedClusteredSession.writeExternal(SessionBasedClusteredSession.
java:288)
09:39:18,930 INFO  [STDOUT] at 
org.jboss.web.tomcat.tc5.session.JBossCacheService.externalizeSession(JBossCacheService.java:771)
09:39:18,930 INFO  [STDOUT] at 
org.jboss.web.tomcat.tc5.session.JBossCacheService.putSession(JBossCacheService.java:229)
09:39:18,930 INFO  [STDOUT] at 
org.jboss.web.tomcat.tc5.session.SessionBasedClusteredSession.processSessionRepl(SessionBasedClusteredSes
sion.java:165)
09:39:18,931 INFO  [STDOUT] at 
org.jboss.web.tomcat.tc5.session.JBossCacheManager.processSessionRepl(JBossCacheManager.java:606)
09:39:18,931 INFO  [STDOUT] at 
org.jboss.web.tomcat.tc5.session.JBossCacheManager.storeSession(JBossCacheManager.java:375)
09:39:18,931 INFO  [STDOUT] at 
org.jboss.web.tomcat.tc5.session.InstantSnapshotManager.snapshot(InstantSnapshotManager.java:38)
09:39:18,931 INFO  [STDOUT] at 
org.jboss.web.tomcat.tc5.session.ClusteredSessionValve.invoke(ClusteredSessionValve.java:91)
09:39:18,931 INFO  [STDOUT] at 
org.jboss.web.tomcat.tc5.session.JvmRouteValve.invoke(JvmRouteValve.java:73)
09:39:18,931 INFO  [STDOUT] at 
org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:59)
09:39:18,932 INFO  [STDOUT] at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
09:39:18,932 INFO  [STDOUT] at 
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
09:39:18,932 INFO  [STDOUT] at 
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
09:39:18,932 INFO  [STDOUT] at 
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
09:39:18,932 INFO  [STDOUT] at 
org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:307)
09:39:18,933 INFO  [STDOUT] at 
org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:385)
09:39:18,933 INFO  [STDOUT] at 
org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:748)
09:39:18,933 INFO  [STDOUT] at 
org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:678)
09:39:18,933 INFO  [STDOUT] at 
org.apache.jk.common.SocketConnection.runIt(ChannelSocket.java:871)
09:39:18,933 INFO  [STDOUT] at 
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
09:39:18,933 INFO  [STDOUT] at java.lang.Thread.run(Thread.java:534)


Maybe this happens if I try to modify a HashMap that is stored in the 
ClusteredSession object while it is replicated?!

Thanks in advance,

Dirk :)

p.s. this exception occured running only ONE node

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[JBoss-user] [Clustering/JBoss] - Re: Strange exception in HTTP-Session replication

2005-11-11 Thread pflapf 
Yes, without problems, just need to start both nodes:

12:44:50,211 ERROR [IdentityLock] read lock for 
/JSESSION/localhost/ROOT/gcTJP89MyXji07wLwJgkGA** could not be acquired by 
Thread[TP-Process
or2,5,jboss] after 15000 ms. Locks: Read lock owners: []
Write lock owner: 192.168.130.63:7850:2
, lock info: write owner=192.168.130.63:7850:2 (activeReaders=0, 
activeWriter=Thread[TP-Processor2,5,jboss], waitingReaders=0, waitingWrit
ers=0, waitingUpgrader=0)

Dirk

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[JBoss-user] [Clustering/JBoss] - Re: Strange exception in HTTP-Session replication

2005-11-03 Thread [EMAIL PROTECTED] 
This is unusual. Should not happen. Can you reproduce it?

-Ben

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