Hi Michael, Once again, thanks for all the explanation. I've experimented a bit this morning, and I've isolated what I find weird.
If you run https://github.com/tgk/langohr-consumer-dies-spike/blob/master/src/spike.clj you'll notice that the message gets rejected as we'd expect when the exception is NOT re-thrown, but the reject seems to be ignored in the case where we re-throw. You could argue that you should never have a handler throw exceptions to the langohr-lib, but seeing as this can happen, and since it handles exceptions just fine when :auto-ack is true (not demonstrated in the experiment, but tested and verified), it seems that a consistent behaviour on a reject should be to continue consuming. Is there something I'm missing? Once again, thanks for all the help. Thomas On 21 May 2014 09:54, Michael Klishin <mklis...@gopivotal.com> wrote: > On 21 May 2014 at 12:49:19, Thomas Kristensen ( > thomas.kristen...@uswitch.com) wrote: > > > My understanding was that, if a handler threw and exception, > > the message wouldn't be ack'ed, but be put back on the exchange. > > That does not seem to happen, and when qos is 1, we seem to get stuck, > > as we are holding one outstanding message. > > See my earlier email. This is not an uncommon expectation. > You can do it by handling all exceptions you want to retry on > and re-queueing the message (with basic.nack). But that's not always a > good idea so > Langohr does not do this in ack-unless-exception. > -- > MK > > Software Engineer, Pivotal/RabbitMQ > -- *uSwitch is a trading name of uSwitch Ltd. Registered in **England and Wales **(Company No. 03612689). Registered Address: **Notcutt House, 36 Southwark Bridge Road, London, SE1 9EU* *This communication and any attachments contains information which is confidential and may be subject to legal privilege. It is for intended recipients only. If you are not the intended recipient you must not copy, distribute, publish, rely on or otherwise use it without our consent. Some of our communications may contain confidential information which it could be a criminal offence for you to disclose or use without authority. If you have received this email in error please notify the sender immediately and delete the email from your computer.* *uSwitch Ltd reserves the right to monitor all email communications for compliance with legal, regulatory and professional standards.* -- You received this message because you are subscribed to the Google Groups "clojure-rabbitmq" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure-rabbitmq+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
