After setting disk free limit incorrectly as rabbitmqctl set_disk_free_limit 1000, flow control does not trigger as expected. What is the issue?

medium📝 Troubleshoot Q7 of 15

RabbitMQ - Performance Tuning

After setting disk free limit incorrectly as rabbitmqctl set_disk_free_limit 1000, flow control does not trigger as expected. What is the issue?

ADisk free limit cannot be set via rabbitmqctl

BThe limit is set in bytes, too low to trigger

CThe command requires a unit suffix like MB or GB

DFlow control only triggers on memory, not disk

Step-by-Step Solution

Solution:

Step 1: Understand disk free limit units
The set_disk_free_limit command expects bytes; 1000 bytes is very small.
Step 2: Analyze why flow control doesn't trigger
Because 1000 bytes is too low, the disk free space is likely above this, so flow control never triggers.
Final Answer:
The limit is set in bytes, too low to trigger -> Option B
Quick Check:
Disk limit is bytes, 1000 too low = C [OK]

Quick Trick: Disk limit is bytes; set large enough value [OK]

Common Mistakes:

MISTAKES

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