The Open Source Zone

ActiveCluster is a framework for writing cluster-based applications, monitoring the available nodes in a cluster and communicating with them. ActiveCluster consists of an API together with a default implementation.

The API is simple and small which reuses a few of the standard JMS APIs for Message, Destination, MessageListener and adds a few simple interfaces for working with clusters representing nodes in the cluster, replicated node state and listeners to nodes joining, leaving or updating their state.

Features

The current features include

• viewing the current nodes in the cluster and their current state
• listening to nodes arrive, update their state, shut down or fail
• communicate with the cluster as a whole or with any specific node in the cluster
• elect a leader of the cluster to make decisions on behalf of the cluster