Relay server failure recovery

On Windows hosts, the FH Web Edition Application Publishing Service can be configured to automatically restart if the service fails. If a relay server fails, clients are disconnected, but sessions continue to run on the FH Web Edition servers that were connected to the relay server. These servers attempt to reconnect to the relay server every 15 seconds. When a dependent host reconnects to the relay server, it re-adds its sessions to the relay server and restores any state information associated with the disconnected sessions. Clients are then able to sign back in and resume their sessions. Clients do not automatically attempt to reconnect to the relay server.

To provide higher service availability, a failover server can be configured for the FH Web Edition relay server using the Microsoft Cluster Service. In this configuration, if the relay server fails for any reason, the failover server immediately takes the place of the failed server. Application hosts automatically reconnect to the failover server, and users will generally be able to log on and reconnect to their disconnected sessions within one or two minutes of the relay server failure.