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A queue shows a high number of 'messages_unacknowledged' but low 'messages_ready'. What might be the problem?

medium📝 Troubleshoot Q7 of 15
RabbitMQ - Monitoring and Management
A queue shows a high number of 'messages_unacknowledged' but low 'messages_ready'. What might be the problem?
AConsumers are disconnected
BNo messages are being published
CQueue is not durable
DConsumers are slow to acknowledge messages
Step-by-Step Solution
Solution:
  1. Step 1: Understand 'messages_unacknowledged' and analyze low 'messages_ready' with high unacknowledged

    This means messages sent to consumers but not yet confirmed as processed. Messages are being delivered but consumers are slow to confirm.
  2. Final Answer:

    Consumers are slow to acknowledge messages -> Option D
  3. Quick Check:

    High unacknowledged = slow consumer acknowledgments [OK]
Quick Trick: High unacknowledged means slow consumer acknowledgments [OK]
Common Mistakes:
MISTAKES
  • Assuming no messages are published
  • Confusing durability with message states

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