Provides interfaces and classes for distributed parallel data processing. Cacheonix significantly improves performance of processing of the data stored in the cluster by executing processing requests in parallel, on all members of the cluster. Cacheonix cluster protocol and data replication ensure that the data is processed consistently even while servers fail or join the cluster. Cacheonix eliminates delays caused by network latency by providing data affinity, by sending the processing requests exactly to the machines that contain the data that must be processed. Only the results of the processing are sent back.