The following diagram depicts a multiple data center deployment showing the well known CoreMedia CMS components and the CoreMedia Elastic Social extensions:
The deployment options for a multiple data center deployment range from extra large to XXL:
Extra Large 'XL'
The 'XL' deployment consists of six nodes running MongoDB configured as two Replica Sets. This setup offers sharding, high availability and hot failover with six MongoDB nodes and can survive the failure of one data center if configured appropriately. When equipped with 256 GB of RAM for each node it may serve a working set of 10 million users and 30 million comments, likes or ratings.
Extra Extra Large 'XXL'
The 'XXL' deployment matches the 'XL' deployment and uses vertical scaling and better I/O throughput to boost read and write performance. Please contact CoreMedia for serious recommendations.
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