Controller event processor
A controller event processor (controller EP or CEP) is an event processor that monitors other EPs in the cluster and is responsible for functions that cannot be delegated to other EPs.
The first event processor that is started in the IBM® Control Center Monitor is designated as the controller EP. If the controller EP is down, one of the active EPs is designated as the new controller EP. When the former controller EP is restarted, it rejoins the cluster as a regular EP and resumes monitoring the servers it was previously monitoring.
The controller EP periodically checks if any EPs in the cluster are down. If the controller EP
detects that an EP that was up and now is down, it temporarily distributes the servers that the EP
monitors to the other EPs according to the defined EP failover policy. The controller EP is
responsible for functions that cannot be delegated to other EPs, such as:
- Processing service level criteria (SLCs)
- Processing traps sent by a Sterling Connect:Direct® File Agent
- Partitioning and purging databases