RabbitMQ - Performance Tuning
You want to ensure RabbitMQ flow control activates before memory usage reaches 60% and disk free space falls below 100MB. Which commands should you run?
You want to ensure RabbitMQ flow control activates before memory usage reaches 60% and disk free space falls below 100MB. Which commands should you run?
hard📝 Best Practice Q15 of 15
Step-by-Step Solution
Solution:
Step 1: Set memory watermark below 60%
To activate flow control before 60% memory usage, setset_vm_memory_high_watermarkto 0.6.Step 2: Set disk free limit below 100MB
Setset_disk_free_limitto 100000000 bytes (100MB) to trigger flow control before disk space is too low.Final Answer:
rabbitmqctl set_vm_memory_high_watermark 0.6 and rabbitmqctl set_disk_free_limit 100000000 -> Option BQuick Check:
Memory < 0.6 and disk < 100MB triggers flow control [OK]
Quick Trick: Set memory fraction and disk bytes below desired limits [OK]
Common Mistakes:
MISTAKES- Setting memory watermark too high to trigger early
- Using disk limit values not matching bytes
- Mixing up memory and disk commands
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