Continuous operations with automatic failover

9.5.0.2

DWC

Engine

Ensure continuous operations with automatic failover and high availability capabilities. The automatic failover feature invokes an automatic switch from the master domain manager, event manager, or both, to a backup. Eligible backups for both the master domain manager and the event manager can be specified in separate lists, adding preferred backups at the top of the list. The backup engines monitor specific behaviors on the master domain manager to detect anomalous behavior (WebSphere Application Server Liberty Base is down, processes on the FTA of the master are down, or connection to database is lost due to a network outage). When the active master becomes unavailable, a long-term switchmgr operation is triggered.
In a high availability configuration, where the master and backup masters are configured behind a load balancer, workload requests are distributed across contactable backups, in addition to the master.