The per-second message drop rate of the dispatcher queue.
This can occur due to server overload, Storage Service connectivity issues, or internal errors.
Generally, Storage Service or its dependent components is the cause of the slow or
blocked processing resulting in dropped messages.
An immediate investigation to find the root cause of this torpid processing of the data by
Storage Service or its dependent components is required in order to prevent further data loss
and return to a normal state. Looking for error events from the Storage Service will provide
a good start to the investigation. Taking this server out of rotation might be necessary to prevent
further data loss, to help buy more time to resolve the root cause of the issue and to let the
dispatcher queue reduce its backlog.