Aggregation in MapReduce [Deprecated]

NCache Aggregator has been built upon the MapReduce framework and processes distributed data records to return compiled and statistical results. As the name indicates, the Aggregator is used to perform an operation over a range of values to produce a small number of results for analytical purposes. Along with providing a built-in aggregator, NCache also allows you to implement and use a custom Aggregator.

In This Section

Overview
Explains in detail the working of the Aggregator.

Implement and Use Agrgregator
Provides samples to implement Aggregator interfaces for custom logic and use it in code.