Applies to version 14 beta 4 and above.
Connexion version 14 can be deployed in active-passive pairs in order to provide hot fail-over. In order to provide a fully automatic fail-over, the following components are required:
- Two instances of Connexion, running on two separate physical machines.
- An automatic fail-over deployment of SQL Server.
- A fail-over capable switch/router.
The simplest hot fail-over topology requires three physical machines. Two machines each have Connexion and SQL Server, and a third machine is required as a witness server for SQL Server replication. The witness role does not require any system resources, and so can be served by an existing server with a few spare cycles:
