What are the different approaches for Java EE session replication?

Question

I am working on a project that requires really high availability and my team is currently working on upgrading some infra-structure and software for a future release.

On

Answer 1

Take a look at Oracle Coherence with HTTP session management module Coherence*Web.

It is in-memory basically but can be more persistence through DB or other storages.

Answer 2

If you're using tomcat then memcached-session-manager would be an option. It's a custom session manager that replicates sessions via memcached and supports both sticky and non-sticky sessions: http:// code.google.com/p/memcached-session-manager

Cheers, Martin

Answer 3

You might want to look at Hazelcast and their HTTP Session Clustering feature