Openwire protocol (used by default by java clients) there is ACK for sent messages. For stomp protocol - it is optional and depends on client implementation as far as I know.
Regarding duplicates, when client does not send ACK to the broker, yes the broker will send the message again. Lok Yu wrote: > > I have a few questions which hope experts help me to answer > > 1. Is there an ACK mechanism when sender sent a message to broker? > > 2. Is it possible that client not ACK the broker and broker will push > content to client again? > > Thanks so much for answering. > -- View this message in context: http://www.nabble.com/Is-there-an-ACK-mechanism-when-sender-sent-a-message-to-broker--tf2923535.html#a8173542 Sent from the ActiveMQ - User mailing list archive at Nabble.com.
