Clustering in Jboss

[Pradeep bhatt]

How does Jboss clustering compare with clustering provided by Weblogic? Thanks.

[norman richards]

I don't use weblogic clustering. I'm not a multi-millionaire.

[Pradeep bhatt]

Originally posted by norman richards:
I don't use weblogic clustering. I'm not a multi-millionaire.

What are the various components that can be clustered ? Where can I get a document which will me let me know me know more about Jboss Clustering. Thanks.

[Lasse Koskela]

Originally posted by Pradip Bhat:
Where can I get a document which will me let me know me know more about Jboss Clustering.

Here you go: JBoss Clustering (PDF, 1mb)

In short, just like any other application server that advertises clustering support, JBoss provides a clustered JNDI tree and EJB components are all clustered of course. Other than that, someone else will have to fill in the blanks.

By the way, I would be especially interested in knowing whether JBoss supports clustered JMS queues or topics?

[Lasse Koskela]

Originally posted by Lasse Koskela:
By the way, I would be especially interested in knowing whether JBoss supports clustered JMS queues or topics?

Clarification: the above document doesn't seem to say much about JMS...

[norman richards]

The current JMS implementation (there is a new one that will be out soon) is deployed using the ha-singleton mechanism in JBoss. The JMS service only runs on one node of the cluster at any time.It's more of a master/slave type of architecture. If the master node fails, JMS is activated on a different node.

[norman richards]

The most important clustered service is HTTP state replication. This is built on top of JBoss Cache. JBoss also supports failover for remote EJBs and state replication for stateful session beans. If you are using hibernate, or using EJB3 entity beans, you can use a clustered 2nd level cache. (using JBoss Cache support takes about 2 lines of configuration to configure)

[Cameron Purdy]

Weblogic and jboss clustering have similar goals and feature checklists, but they are two completely different implementations, so they could differ substantially in throughput, reliability, availability, scalability, performance, etc.

Also check out Coherence. It is unparalleled for its scalable performance, supporting sites with loads of over 100,000,000 pages per day.

Peace.

[Pradeep bhatt]

Thanks guys. Where can I get more info on Jboss Cache ? Is it proprietary implementation or implementation of some JSR?

[Dave Salter]

You can get all the info about JBossCache here

As far as I am aware, it is not based upon any JSR.

Cheers,

Dave.

[Pradeep bhatt]

Thanks Dave.