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You run rabbitmqctl list_queues name messages_ready but get an error: unknown command. What is the most likely cause?

medium📝 Troubleshoot Q14 of 15
RabbitMQ - Monitoring and Management
You run rabbitmqctl list_queues name messages_ready but get an error: unknown command. What is the most likely cause?
AThe Management Plugin is not enabled
BRabbitMQ server is not running
CYou do not have permission to run rabbitmqctl
DThe command syntax is incorrect or incomplete
Step-by-Step Solution
Solution:
  1. Step 1: Check command syntax

    The command rabbitmqctl list_queues name messages_ready is valid, but if typed incorrectly or missing parts, it causes 'unknown command'.
  2. Step 2: Rule out other causes

    Management Plugin absence does not cause this error; server down or permission issues give different errors.
  3. Final Answer:

    The command syntax is incorrect or incomplete -> Option D
  4. Quick Check:

    Syntax error = unknown command [OK]
Quick Trick: Check command spelling and arguments carefully [OK]
Common Mistakes:
MISTAKES
  • Assuming plugin missing causes unknown command
  • Ignoring typos in command
  • Confusing permission errors with syntax errors

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