Introduction

In a clustered environment, processing is shared among two or more instances of Spectrum™ Spatial Analyst. All communication with Spectrum™ Spatial Analyst goes through a load balancer. Instead of using the URL and ports of the Spectrum™ Spatial Analyst server, you use the URL and port of the load balancer.

This document is a step by step guide to set up a simple Spectrum™ Spatial Analyst cluster to achieve high availability, scalability & failover. Consider using this approach if you require fail-over redundancy and very high-volume use for Spectrum™ Spatial Analyst.

Note: Clustering of Spectrum™ Spatial Analyst is independent of clustering the Spectrum™ Technology Platform server. Each node in Spectrum™ Spatial Analyst will need to point to the load balancer used to cluster the Spectrum™ Technology Platform server. If performance and scalability for rendering maps and data is a priority then usually it will be necessary to first consider whether the resources available to the Spectrum™ Technology Platform server are adequate or that it is clustered. Clustering Spectrum™ Spatial Analyst will not help the Spectrum™ Technology Platform server to perform better.