TopicOverloadPolicy Enum

Defines the overload policy for a topic when there is no place to store a message.

public enum TopicOverloadPolicy

Block	The caller will wait till there space in the ring buffer.
DiscardNewest	The message that was to be published is discarded.
DiscardOldest	A message that has not expired can be overwritten. No matter the retention period set, the overwrite will just overwrite the item. The policy can cause problem for slow consumers since they were promised a certain time window to process the messages. But it will benefit producers and fast consumers since they are able to continue. This policy sacrifices the slow producer in favor of fast producers/consumers.
Error	The publish call immediately fails.