Upgrading jgroups

[mjtodd]

I am currently using jboss AS 4.0.3 in the all configuration and am trying to upgrade jgroups to version 2.4CR2 to take advantage of the TCP_NIO functionality, however when I startup the second node in my cluster I get the following exception:

WARN [org.jboss.ha.framework.interfaces.HAPartition.DefaultPartition] failed unserializ
ing message buffer (msg=[dst: <null>, src: 192.168.200.99:7801 (2 headers), size = 492 bytes])
java.io.StreamCorruptedException: invalid stream header
 at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:753)
 at java.io.ObjectInputStream.<init>(ObjectInputStream.java:268)
 at org.jboss.invocation.MarshalledValueInputStream.<init>(MarshalledValueInputStream.java:60)
 at org.jboss.ha.framework.server.HAPartitionImpl.objectFromByteBuffer(HAPartitionImpl.java:135)
 at org.jboss.ha.framework.server.HAPartitionImpl.handle(HAPartitionImpl.java:943)
 at org.jgroups.blocks.RequestCorrelator.handleRequest(RequestCorrelator.java:623)
 at org.jgroups.blocks.RequestCorrelator.receiveMessage(RequestCorrelator.java:508)
 at org.jgroups.blocks.RequestCorrelator.receive(RequestCorrelator.java:331)
 at org.jgroups.blocks.MessageDispatcher$ProtocolAdapter.up(MessageDispatcher.java:763)
 at org.jgroups.JChannel.up(JChannel.java:1078)
 at org.jgroups.stack.ProtocolStack.up(ProtocolStack.java:377)
 at org.jgroups.stack.ProtocolStack.receiveUpEvent(ProtocolStack.java:393)
 at org.jgroups.stack.Protocol.passUp(Protocol.java:538)
 at org.jgroups.protocols.pbcast.STATE_TRANSFER.up(STATE_TRANSFER.java:163)
 at org.jgroups.stack.UpHandler.run(Protocol.java:60)

If anyone can offer any help, it would be much appreciated

[brian.stansberry]

When you start JBoss you need to pass -Djgroups.marshalling.compatible=true to java.

FYI for any one reading this thread: http://labs.jboss.com/portal/jbosscache/compatibility/index.html is a good resource for tips/suggestions re: upgrading JGroups and JBoss Cache.

[mjtodd]

Thank you for your reply. I have the jgroups.marshalling.compatible system property already set to true though.I have confirmed this via the jmx console on both nodes. Is there anything else it could be?

[brian.stansberry]

Ah, I forgot. The -Djgroups.marshalling.compatible=true fix was added after 2.4.CR2. So you'd need to check out JGroups HEAD and build it, or wait for 2.4.GA, which should be out within a week.