Product: OpenFusion Notification Service

Version: 2.1 and above

Description:

What circumstances could cause a consumer to lose notifications?

Solution:

If a filter is in place the filter will filter out events that do not meet the filter criteria and the consumer will not receive these events.

If the events are transient the consumer will lose the events if it goes down or if there is a network failure.

There is no possibility of losing persistent events provided these have been successfully delivered to the service in the first place, and these have not been subsequently rejected by filters or by a queue limit being reached. The queue sizes are controlled by QoS and Admin properties that can be set on the service.