We have not tested Axis2 clustering on OC4J AFAIK. With respect to state replication, at the Axis2 level, we are only concerned about replicating the values stored in the Axis2 ConfigurationContext, ServiceGroupContext & ServiceContext. We use default Java serialization, hence the entire object tree should be serializable for the replication to be successful. Please note that clustering at the servlet container level (HTTP session & request replication) is out of the scope of Axis2 and has to be handled by the respective servlet containers.
For more details; refer to my articles; 1. Introduction to WSO2 Carbon Clustering http://wso2.org/library/articles/introduction-wso2-carbon-clustering 2. WSO2 Carbon Cluster Configuration Language http://wso2.org/library/articles/wso2-carbon-cluster-configuration-language Azeez On Fri, Jan 8, 2010 at 1:29 AM, Shailesh Potnis <[email protected]> wrote: > > Hi: > > I am going through a good deal of Axis2 documents and links. I am trying to > determine if anyone has deployed Axis2 Cluster within OC4J cluster and what > is the experience. I am planning to use it exclusively for stateless web > services. Here are some specific questions: > > 1) What would be specific benefits of deploying the stateless web services in > Axis2 cluster when scalability would be provided by OC4J cluster? > 2) Are the Axis2 clustering benefits limited to deploying in Tomcat or are > useful in other app servers? > 3) In case a service is hung due to application or infrastructure issues, > would Axis2 cluster direct a request to another Axis2 instance in a cluster? > > I posted the above some time ago in the Axis2 developers group and I think > that this group may be a more appropriate group for this. > > Also when I deployed a stateless service (with a single stateless operation: > version), I get the following error: > > Could not send command message ContextClusteringCommandCollection to group > since it is not serializable > > I will be glad to send complete stack trace if necessary. > > All helpful suggestions are highly appreciated.. > > Thank You and Best Regards > > > Sincerely > > > Shailesh > > -- Thanks Afkham Azeez Blog: http://afkham.org Developer Portal: http://www.wso2.org WSAS Blog: http://wso2wsas.blogspot.com Company: http://wso2.com GPG Fingerprint: 643F C2AF EB78 F886 40C9 B2A2 4AE2 C887 665E 0760
