Moving From a Single Server Environment to a Multiple Server Environment

In production with the CTERA messaging service, the minimal production installation comprises of five servers: Two database servers (primary and secondary), and three application servers that also function as messaging servers. Therefore, to move from a single server test environment to a multiple server production environment requires adding at least four servers: one for replicating the primary database server and three as messaging servers.

To move to a production environment:

1. Add the additional servers, defining one server as a replication server, as described in Installing and Configuring Additional CTERA Portal Servers.
2. Configure two servers as messaging servers.
   Note

   When setting up the messaging service, as described in Setting Up the CTERA Messaging Service, you have to add two servers so that the total messaging servers are three. You cannot add one server at a time to the existing messaging server.

3. Replace the messaging service from the original primary database server with the third application server, as described in Replacing a Messaging Server.