Highly Scalable: Hierarchical Navigation …

Hierarchical Navigation and Faceted Search on Top of Oracle Coherence

By Ilya Katsov, Principal Engineer, Grid Dynamics

Some time ago I participated in design of a backend for one large online retailer company. From the business logic point of view, this was a pretty typical eCommerce service for hierarchical and faceted navigation, although not without peculiarities, but high performance requirements led us to the quite advanced architecture and technical design. In particular, we built this system on top of Oracle Coherence and designed our own data structures and indexes.

In this article, I describe major architectural decisions we made and techniques we used. This description should not be considered as a solid blueprint, but rather a collection of the relatively independent ideas, patterns, and notes that can be used in different combinations and in different applications, not only in eCommerce systems.
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