For two data source systems to connect through QueryGrid, both systems must be registered to the same QueryGrid Manager cluster. As of QueryGrid 02.11, data source systems can belong to up to three QueryGrid Manager clusters.
Use Case: Production and DevelopmentOne of the main reasons for maintaining multiple clusters is to maintain a development cluster separate from a production cluster. A production or development data source can be part of both the production and development cluster. This allows the development system to be seeded with data from production while still maintaining separate environments.
Use Case: Full Vantage Cluster and External EcosystemAnother reason for having multiple clusters is to keep the internal Full Vantage cluster isolated from the ecosystem deployment of QueryGrid while still allowing Advanced SQL Engine to belong to both the Vantage internal cluster and the external ecosystem cluster.