Clustering in the EJB Tier
The other areas that can be load balanced and clustered are the components within the application tier. Again, because the J2EE and EJB specifications do not deal with load-balancing issues, the exact components and services that can be clustered is very dependent on your vendor. If load balancing is important for your application, be sure to check with the vendor to see whether it’s supported before purchasing an EJB server.
Not all EJB vendors will have complete support for clustering, so this discussion must be a little more generic and really just discuss a superset of features that you’ll find across vendors. You will find a few vendors that support all or most of these clustering features in some proprietary ...
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