Hi All, Hopefully someone here can educate me on the below matter.
Here is a rather long-winded description of the issue: https://stackoverflow.com/questions/51875646/apache-camel-with-rabbitmq-messages-in-temp-reply-queue-not-being-acked-when-au The essence of it is that in an InOut route with autoAck=false on the main queue the messages on the temporary reply queue are not being acked even though they are being fetched as indicated by the prefetch setting and the amount of messages in an un-acked state on the temp queues. If I set the autoAck=true then it works fine but in that case I'm risking losing messages and that's not what I want (we switched from SEDA to RabbitMQ for this reason among others). If I set the exchange pattern to InOnly then it works fine as well as the route then doesn't need the temp queue for the reply. That unfortunately causes a race condition in this scenario (outputEmailEndpoint and outputArchiveEndpoint get the message at the same time, but email route needs to finish first before it can be archived): rest(restEndpoint).post(postEndpoint) .type(MyRequest.class) .route() .startupOrder(Integer.MAX_VALUE - 2) .process(this::process) .choice() .when(header(DELIVERYSTATUS_HEADER).isEqualTo(Status.COMPLETED)).to(outputEmailEndpoint, outputArchiveEndpoint) I'd also like to be sending the correct response status to the REST client calling this service and at the moment that doesn't quite work too well as the un-acked messages start blocking the route or the response will be sent before email route has finished. I'm only new to Camel so I might be missing something very obvious here but the last few days of searching around and trying various config options haven't really got me anywhere further. Thanks and Best Regards, Valdis
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