Hi, Justin, thanks for you very fast answer. One more question about “ActiveMQ Artemis discards the message”: it is a default behavior that can be customized someway, or this is a fixed by code behavior? I think this clarification would be a great addition to documents.
Thanks, ER. Enviado do Email<https://go.microsoft.com/fwlink/?LinkId=550986> para Windows De: Justin Bertram<mailto:jbert...@apache.org> Enviado:quinta-feira, 3 de março de 2022 12:17 Para: users@activemq.apache.org<mailto:users@activemq.apache.org> Assunto: Re: Artemis 2.20.0 + Stomp protocol: to Ack or to Nack, that's the question Yes, STOMP supports a NACK frame. The STOMP 1.2 specification [1] says this about the NACK frame: > NACK is the opposite of ACK. It is used to tell the server that the client did not consume the message. The server can then either send the message to a different client, discard it, or put it in a dead letter queue. The exact behavior is server specific. ActiveMQ Artemis discards the message. Justin [1] https://stomp.github.io/stomp-specification-1.2.html#NACK On Thu, Mar 3, 2022 at 9:09 AM Edson Richter <edsonrich...@hotmail.com> wrote: > I’m writing a Go client using Stomp protocol. > I’ve read all the chapter about Stomp protocol in Artemis Docs. I > understand I can’t use transactional Ack as per this paragraph: > > > “The STOMP specification identifies transactional acknowledgements as an > optional feature. Support for transactional acknowledgements is not > implemented in Apache ActiveMQ Artemis. The ACK frame can not be part of a > transaction. It will be ignored if its transaction header is set.” > > > I’m not using transaction header - but then, when I do NACK on a message, > it is still being consumed from the queue. > I think I misunderstood the documentation. > Can I NACK a message using Stomp protocol? If yes, what happens to the > message (or “why it is being consumed from the queue”)? > > > Thanks for the clarification, > > ER. > > > Enviado do Email<https://go.microsoft.com/fwlink/?LinkId=550986> para > Windows > >
