Durable Behavior
Administrators configure the behavior of a durable and its interaction with durable subscribers.
For the configuration interface, see Durable Definition Reference.
- Types of Durables: Standard, Shared, Last-Value, Map
Each type of durable supports a different set of use cases. - Standard Durable Reference
A standard durable strengthens delivery assurance for a subscriber. - Shared Durable Reference
A shared durable apportions a message stream among its subscribers. - Last-Value Durable Reference
A last-value durable preserves only the most recent message for subscribers. It does not track message acknowledgments from subscribers. - Message Interest
A persistence store collects all the messages from its publishers, but a subscriber might require only a subset of those messages, and different subscribers might require different subsets. (Developers and administrators coordinate to configure this behavior.) - Acknowledgment Mode
Durable subscribers acknowledge each message as they process it. However, the client library can transmit acknowledgements to the cluster in either of two modes: synchronous or asynchronous.
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