From: Rafal K. <ra...@po...> - 2003-10-05 21:38:14
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At 21:26 05.10.2003 +1000, Greg Wilkins wrote: >There are many answers to "the clustering" question. The main reason >for this is that there are lots of different reasons to cluster and >lots of different webapps. > >Depending on your app you can cluster with: > > 0) Just mod_jk and no shared state between nodes > 1) Shared state in DB and entity beans > 2) Shared state in clustered session beans > 3) Shared state in clustered http sessions > 4) A combination of the above. > >Note that shared state is for availability - not scalability. > >But if you use commit option B and only stateless sesson beans, >then you can probably get away without actual clustering - but >you have to check that the inefficiencies of option B to not >erode any gains you get from load balancing. But I have no other choice as to use Commit Option B if I have more than one JBoss instance. Rafal |