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(Overview)
(Architecture)
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The following disgram illustrates the architecture of this sample multiple datacenter deployment.
 
The following disgram illustrates the architecture of this sample multiple datacenter deployment.
  
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Revision as of 14:48, July 6, 2017

Multiple Datacenter Deployment

Starting in release 8.5.1, GWS supports a deployment with multiple (two or more) datacenters. This section describes a this type of deployment.

Overview

A multiple datacenter deployment implies a logical partitioning of all GWS nodes into segregated groups that are using dedicated service resources, such as T-Server, StatServers, and so on.

The topology of a GWS Cluster can be considered as a standard directory tree where a leaf node is a GWS data center. The following diagram shows a GWS Cluster with 2 geographical regions (US and EU), and 3 GWS datacenters (East and West in the US region, and EU as its own datacenter).

Gws multidatacenters-topo 851.png

For data handling and distribution between GWS datacenters, the following third-party applications are used:

  • Cassandra—A NOSQL database cluster with multiple datacenters with data replication between each other.
  • Elasticsearch—A search engine which provides fast and efficient solution for pattern searching across Cassandra data. Genesys recommends that each GWS datacenter have an independent, standalone Elasticsearch cluster.

Architecture

A typical GWS datacenter in a multiple datacenter deployment consists of the following components:

  • 2 APINodes
  • 2 StatNodes
  • 3 Cassandra nodes
  • 3 ElasticSearc nodes
  • 1 SyncNode (only for Primary region)

The following disgram illustrates the architecture of this sample multiple datacenter deployment.

Gws multidc-arch 852.png

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