Hi All

I'm evaluating hibernate for a clustered web application.

The following constraints I cannot change easily:
- WLS 7.0
- Oracle 9i
- read performance is very important
- we have a lot of identical finds on the DB. (query caching would help al lot)
- IP Multicast is not available

When it comes to clustering I'm not sure what options I have. For a single machine I have OSCache working, it's great! The OSCache docs say, that it can do clustered caching via JMS. The Hibernate doc has a blank cell (page 95 in the 2.1.1 doc) for the clustering row.

Does Hibernate support clustered caching with OSCache? Is somebody out there who has this working? May be with WLS 7.0?

If OSCache is not clusterable, can I use the JBoss TreeCache within WLS 7.0? Does it support communication via JMS?

Thank for your thoughts
Ernst


BTW: Hibernate is the best O/R-Mapper I've ever seen!

You might be able to write your own DistributedOSCacheProvider. Look at the SwarmCacheProvider, I suppose.

However, distributed caching over JMS is really a very crappy implementation. I'm guessing you might be better off using a local second-level cache with just appropriate timeouts on each region.