Hi All,
We are having trouble using JBC Habanero version 2.0.0.0 GA for enabling Distributed Caching. The error encountered as appearing in the log is as :
Nov 2, 2007 6:00:07 AM org.jgroups.protocols.TP$IncomingPacket run
WARNING: packet from a.b.c.d:45564 has different version (0.0.0) from ours (2.5.0). Packet is discarded
Environment :
Tomcat 5.5.20, Multicast
Starting Catalina with the following option to avoid the "Problem creating sockets" :
-Djava.net.preferIPv4Stack=true
What I am trying to do is, use JBC for distributing cache over the Tomcats cluster established with multicasting. The steps followed were :
1. modified ip address & port for the UDP/mcastaddr and port in replSync-service.xml
2. commented off transaction manager tag in the xml, as we dont have the requirement for Transactional Caching
3. created a client that would enable/initialize the JBC caching :
CacheFactory factory = DefaultCacheFactory.getInstance();
cache = factory.createCache(<url of the replSync-service.xml>);
Whats happening is :
1. JGroups seems to be doing whats required as I see the following in the log :
INFO: JGroups version: 2.5.0
-------------------------------------------------------
GMS: address is a.b.c.d:32838
2. And further the following is logged :
INFO: viewAccepted(): [a.b.c.d:32838|0] [a.b.c.d:32838]
Nov 2, 2007 6:00:06 AM org.jboss.cache.CacheImpl internalStart
INFO: CacheImpl local address is a.b.c.d:32838
Nov 2, 2007 6:00:06 AM org.jboss.cache.CacheImpl internalStart
INFO: JBoss Cache version: JBossCache 'Habanero' 2.0.0.GA[ $Id: Version.java,v 1.35 2007/08/01 16:52:13 msurtani Exp $]
Nov 2, 2007 6:00:07 AM org.apache.catalina.cluster.mcast.McastServiceImpl$ReceiverThread run
WARNING: Error receiving mcast package. Sleeping 500ms
java.lang.ArrayIndexOutOfBoundsException
at java.lang.System.arraycopy(Native Method)
at org.apache.catalina.cluster.mcast.McastMember.getMember(McastMember.java:174)
at org.apache.catalina.cluster.mcast.McastServiceImpl.receive(McastServiceImpl.java:210)
at org.apache.catalina.cluster.mcast.McastServiceImpl$ReceiverThread.run(McastServiceImpl.java:254)
Nov 2, 2007 6:00:07 AM org.jgroups.protocols.TP$IncomingPacket run
WARNING: packet from a.b.c.d:45564 has different version (0.0.0) from ours (2.5.0). Packet is discarded
3. Is the observed error ignorable ?
4. I have not started the other node in the cluster as there are hundreds of lines appearing in the log with Packet discarded message.
Have I done enough, or missing something obvious as the documents do direct us to do just the above.
Best Regards,
Jigyaasa_Jbosscache
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