Failover

A failover cluster is a group of servers that work together to maintain the overall service stability and exclude any possible downtime of any part of the system. If one of the servers fails, another cluster server takes over its workload. This process is called failover.

In Watcher cluster, in case of a streamer server failure, the camera traffic to this server will automatically redistribute between other cluster servers, also called standby servers. The video archive becomes unavailable on the streamer server that had a failure. The new video archive will be recorded on the standby server.

Warning

When the connection to the primary server that had an issue is renewed, the traffic isn't automatically redirected back. Traffic can be returned back to the main streamer if necessary for proper resource distribution.

Once the server is restored, provided that the storage on the main server was not damaged during the file, access to the main video archive will be restored.

The failover function is enabled in Watcher by default. No additional settings are required.