Cache replication using TCP unicasting for custom portlet

[Xinsheng Robert Chen, modificado hace 12 años.]

Hi,

I have clustered two nodes of Liferay portal 6.0 SP1 in JBoss 5.1.0. I am using TCP unicasting for cache replication.

I have some problem to replicate cache of entities in custom portlets.

After the application reads the service.properties file of a custom portlet, it throws the following exceptions:

2011-10-26 08:02:57,192 ERROR [net.sf.ehcache.distribution.jgroups.JGroupsCacheManagerPeerProvider] (main) Failed to create JGroups Channel, replication will not function. JGroups properties:
null
org.jgroups.ChannelException: unable to setup the protocol stack
at org.jgroups.JChannel.init(JChannel.java:1728)
at org.jgroups.JChannel.<init>(JChannel.java:249)
at org.jgroups.JChannel.<init>(JChannel.java:232)
at org.jgroups.JChannel.<init>(JChannel.java:173)


at org.jboss.Main$1.run(Main.java:556)
at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.ClassCastException: org.jgroups.protocols.UDP cannot be cast to org.jgroups.stack.Protocol
at org.jgroups.stack.Configurator.createLayer(Configurator.java:433)
at org.jgroups.stack.Configurator.createProtocols(Configurator.java:393)
at org.jgroups.stack.Configurator.setupProtocolStack(Configurator.java:88)
at org.jgroups.stack.Configurator.setupProtocolStack(Configurator.java:55)
at org.jgroups.stack.ProtocolStack.setup(ProtocolStack.java:534)
at org.jgroups.JChannel.init(JChannel.java:1725)

Can some experts help me with this? Thank you!

[Xinsheng Robert Chen, modificado hace 12 años.]

Hi,

I would provide more information here.

Please see attached the log file and the "hibernate-clustered-node1.xml."

Thank you for your help.

[Xinsheng Robert Chen, modificado hace 12 años.]

Hi,

This only happens to a custom portlet with code generated by the service builder. The application server tries to initialize the "liferayHibernateSessionFactory" bean in this custom portlet. This beans wants to be hooked up with the cacheProvider. However, because the TCP unicast cache replication is custom, the application server cannot find the cacheProvider from the custom configuration. So the initialization of the "liferayHibernateSessionFactory" bean fails.

Of course, there may be other causes.

I would appreciate your help.

[Sandeep Nair, modificado hace 12 años.]

Hi Robert,

There has been some problem with Liferay 6 EE SP1/SP2 with JBoss when you use servicebuilder. I am not sure if that is the issue you might be having. Please check the following blog link and LPS. I think there is a patch available for the same too.

http://www.liferay.com/community/forums/-/message_boards/message/11289600

http://issues.liferay.com/browse/LPS-21104

Regards,
Sandeep

[Xinsheng Robert Chen, modificado hace 12 años.]

Thank you, Sandeep!

You are the first one to answer my request.