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To scale the API project to multiple proxies for ease of request handling and load balancing, it may be necessary to deploy the same API Project at multiple Gateways (Proxies). To achieve this objective, Server Groups can be added to a project; adding gateways to a server group will help deploy a project on various environments.
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Managing Server Groups
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This view allows you to add/edit/remove Servers to the API Manager.
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To remove a server group, select the particular group name and click the Remove 
button.
Configuring Analytics Database
The Analytics Database Configuration section on the lower-right side of the Server Groups page is used to configure the database which in turn is used to save the Analytics data. The API Management uses PostgreSQL DB Server as the Analytics database where all analytics data being tracked at the proxy are stored and subsequently fetched for processing.
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