seam in tomcat 6 cluster: seam managed entityManager cannot be replicated..

[sducas.sducas1.gmail.com]

Hello,

I'm trying to set up a vertical tomcat cluster (two tomcat instances on the same computer) running a  2.1.0.SP1 seam application.

Has soon as I start a conversation the replication don't work and throw:

java.lang.IllegalStateException: unread block data

I tryed evrery JDK(32 and 64bits) version on win32, debian, kubuntu (32 and 64bits), open jdk....

While debugging i figured out that it was when trying to deserialize (for replication from one node to an other) this session attribute:

org.jboss.seam.CONVERSATION#61$entityManager

It seems the stream transmitted for that session attribute can not be deserialiazed and throw the above exception.

How can I fix it?

How to deal with managed persistance context in a tomcat cluster (org.apache.catalina.ha.tcp.SimpleTcpCluster).

THX!!

[sducas.sducas1.gmail.com]

I've juste tryed with seam 2.1.1-GA, now I have:

java.io.NotSerializableException: org.jboss.seam.transaction.TransactionInterceptor$TransactionMetadata

and sometimes instead this I have the same for java.lang.reflect.Method:

java.io.NotSerializableException: java.lang.reflect.Method

[marius.oancea]

I have the same problem. I use jboss 4.2.2.

Any idea what we can do?

[darpholgshon]

10:42:41,882 ERROR [JBossCacheService] externalizeSession(): exception occurred 
externalizing session SessionBasedClusteredSession[id: ao3FW50hV-enSLiz0YRAiQ**.node1 lastAccessedTime: 1236249761866 version: 67 lastOutdated: 0]
java.io.NotSerializableException: java.lang.reflect.Method

I am also getting this when trying to run clustered applications. I have seen similar posts elsewhere, but no one has a 'helpful' answer other than saying that something is trying to be serialized that isn't serializable!

I have made EVERYTHING in my project serializable even the stuff I don't think needs to be, but still this exception appears every page request. I'm using Seam 2.1.1.GA and JBoss 4.2.3 under jdk 1.5.0_16 with APR native connector.

Interestingly I got a different variant of this exception using Seam 2.1.0.SP1 which was
complaining that 'mockHttpSession' was not serializable, and I upgraded to fix this issue as well as a few other things.

Does anyone know how to resolve this? Surely people are running clustered configurations successfully somewhere?

[sbasinge]

If you're using Seam 2.1.1, POJO based and framework classes, e.g. EntityHome, EntityQuery, check out the issue here: http://www.seamframework.org/Community/DiagnosingSessionSerializationSeam211GA. If it works for you, please post back so the JIRA will get faster attention.