The collection of servers that process requests in Infrastructure Map Server is called a site. You can divide the processing load between two or more servers within the site. Each site shares a single resource repository among its servers. The resource repository stores the resources that map authors use to create maps, for example, pre-defined layers for features such as roads or land parcels.
In the diagram, the site contains two servers, one of which is designated as the site server. The site server contains the resource repository. It also connects to any database server or servers.
Infrastructure Map Server provides seven services: Site, Resource, Drawing, Feature, Mapping, Rendering, and Tile. If you are using a single server, that server performs all of these services. In any case, the site server always runs the first two services, because they handle data access and manage the resources for the site. However, if you have two or more servers, you can split off the other services and allocate them to another server or servers. For example, the Mapping and Rendering services are the most processor-intensive operations and can benefit from having a dedicated server to handle them.
- The Mapping service creates the view of a map in response to requests from the clients.
- The Rendering service creates the final map image for the viewers from input provided by the Mapping service.
A typical site with two servers