| 摘要 |
A method for republication of published messages includes receiving a published message on a topic from a publisher, storing the published message as an appended retained message, republishing the appended retained message on a history topic, receiving a request from a subscriber to view at least a portion of the appended retained message, and transmitting the republished message to a subscriber subscribing to the topic after the published message has been published via the history topic.
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