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Which RabbitMQ metric indicates the number of messages that have been delivered to consumers but not yet acknowledged?

easy📝 Conceptual Q1 of 15
RabbitMQ - Monitoring and Management
Which RabbitMQ metric indicates the number of messages that have been delivered to consumers but not yet acknowledged?
Aconsumers
Bmessages_ready
Cmessages_unacknowledged
Dqueue_length
Step-by-Step Solution
Solution:
  1. Step 1: Understand message states in RabbitMQ and identify the metric

    Messages can be ready (waiting) or unacknowledged (sent but not confirmed). The metric 'messages_unacknowledged' tracks messages delivered but not yet acknowledged by consumers.
  2. Final Answer:

    messages_unacknowledged -> Option C
  3. Quick Check:

    Unacknowledged messages = messages_unacknowledged [OK]
Quick Trick: Unacknowledged messages = messages_unacknowledged metric [OK]
Common Mistakes:
MISTAKES
  • Confusing messages_ready with unacknowledged messages
  • Thinking consumers count equals unacknowledged messages

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