Represents a single occurrence of something interesting within the system. Some examples of events are creating a cluster, adding or removing a cache node, or rebooting a node.
The date and time when the event occurred.
The text of the event.
The identifier for the source of the event. For example, if the event occurred at the cluster level, the identifier would be the name of the cluster.
Specifies the origin of this event - a cluster, a parameter group, a security group, etc.