PowerDNN

Large scale DotNetNuke applications have unique needs that need specialized attention when compared to small DotNetNuke applications.  The most challenging of these problems involves handling distributed caching.  PowerCache eliminates the synchronization problems that are normally encountered when using DotNetNuke in a load-balanced environment by ensuring that every servers' cache is synchronized with every other server in the DotNetNuke webfarm cluster.

Apart from managing a distributed caching environment, PowerCache also provides a high-reliability, fault-tolerant configuration as well.  New servers can be hot-added and hot-removed from a PowerCache infrastructure.  Additionally, in the case of a network failure, servers running the PowerCache caching provider can continue to operate in stand-alone mode until network connectivity is restored.  Once network conectivity is restored, the web servers will automatically reconnect to the PowerCache SyncServer and then synchronize their own cache with the cache of all of the other servers in the cluster.