c# - Can I set an explicit task timeout for RabbitMQ consumer? -

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i understand rabbitmq ack, default, re-queue message if detects consumer/worker has died.

what situation consumer/worker still alive process has stalled out long , didn't ack?

i set explicit time says if message has been dispatched consumer consumer has held message without ack long message gets re-queued.

i recognize might result in messages getting processed in duplicate consequence of not bad delayed message delivery. can happen errant exception handling if swallowed, task terminates, , message never ack'd , never re-queued.

timeout rabbitmq consumer explicitly set on consumer side. think clear mention - there must not automatic acks in case. solution consumer multithreaded 1 thread doing message processing , acking message after has been processed, , other thread being timeout thread would:

  1. terminate connection broker once timeout has expired, , consequence message requeued
  2. ack received message , re-publish (explicitly)
  3. nack received message, based on documentation (instructing broker either discard them or requeue them), seems config should set instructing broker should nacked messages


now implies @ least part of process isn't stuck. if whole process stuck, perhaps broker heartbeat towards consumer stopped , how broker knows consumer died (honestly didn't test situation, i'm assuming), if not case (or safe) add kind of watchdog process pinging consumer(s) , killing them if there's no reply, again lead messages not being acked , being requeued.


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