In January, Confluence 2.3 became the first commercial wiki that could be clustered. We billed it as, “Confluence Massive… provides unlimited scalability, together with exceptional performance and reliability, for large deployments of the wiki.”
Turns out a lot of customers with a smaller number of users wanted to be able to cluster the wiki, too. Clustering was previously only possible for Confluence Unlimited (unlimited user license) customers. The latest changes with the recent release of Confluence 2.4.5 also allow our Confluence Enterprise (500 users) customers to create clustered instances, too.
Visit the Confluence home page to learn more or to download a free evaluation copy. Side-by-side comparison pricing information is available here.

Cluster This (Too)!...