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What will happen if you call channel.wait_for_confirms() after publishing a batch of messages in RabbitMQ?

medium📝 Command Output Q5 of 15
RabbitMQ - Performance Tuning
What will happen if you call channel.wait_for_confirms() after publishing a batch of messages in RabbitMQ?
AIt blocks until all messages in the batch are confirmed by the broker
BIt immediately returns without waiting
CIt cancels all unconfirmed messages
DIt restarts the channel connection
Step-by-Step Solution
Solution:

  1. Step 1: Understand wait_for_confirms behavior

    This method waits for the broker to confirm all published messages.

  2. Step 2: Confirm blocking effect

    It blocks the client until all messages are acknowledged, ensuring delivery.

  3. Final Answer:

    It blocks until all messages in the batch are confirmed by the broker -> Option A

  4. Quick Check:

    wait_for_confirms blocks until batch confirmed [OK]
Quick Trick: wait_for_confirms waits for all batch confirmations [OK]
Common Mistakes:
MISTAKES
  • Thinking it returns immediately
  • Assuming it cancels messages
  • Believing it restarts connection

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