Questions belong to the mailing list.
> On 11/9/2015, at 6:17, j...@signafire.com wrote:
>
> Essentially, it's not clear to me how an application is supposed to recover
> when handling a nack or when langohr.confirm/wait-for-confirms returns false.
> It seems to me that the delivery tag that the nack handler receives is only
> useful if I've been maintaining a map from delivery tags to messages (so that
> I know which message needs to be retried). Is that a responsibility expected
> of the application developer? I.e., should I be doing something like (swap!
> delivery-tag->message assoc (.getNextPublishSeqNo channel) message) before
> each invocation of langohr.basic/publish? (If so, I'd probably also (swap!
> delivery-tag->message dissoc delivery-tag) inside of the ack-handler.)
>
> And in the case of langohr.confirm/wait-for-confirms returning false: all I
> know in that circumstance is that some message failed to send since the last
> time I called wait-for-confirms. So in order to use wait-for-confirms, should
> I be maintaining a set of pending messages? Something along the lines of:
> (if (wait-for-confirms channel)
> (reset! sent-yet-unconfirmed-messages #{}) ; flush our memory of the
> recently-sent messages
> (try-resending-the-messages))
>
>
> I'd really appreciate any guidance you can provide.
> -Josh Tilles
>
> P.S. I'm new to AMQP, RabbitMQ, and Langohr, so if I'm going about this the
> wrong way, feel free to point it out.
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