AWS - Auto Scaling
If an Auto Scaling group has a cooldown period of 300 seconds and a scale-in event occurs at 1:00:00 PM, what will happen if another scale-in event is triggered at 1:04:00 PM?
If an Auto Scaling group has a cooldown period of 300 seconds and a scale-in event occurs at 1:00:00 PM, what will happen if another scale-in event is triggered at 1:04:00 PM?
medium📝 service behavior Q5 of 15
Step-by-Step Solution
Solution:
Step 1: Calculate time between scale-in events
From 1:00:00 PM to 1:04:00 PM is 240 seconds.Step 2: Compare with cooldown period
Cooldown is 300 seconds, so 240 seconds is less than cooldown, meaning cooldown is still active.Step 3: Understand scale-in cooldown behavior
Scale-in events respect cooldown and block new scale-in during cooldown.Final Answer:
The second scale-in event is ignored because cooldown is active -> Option DQuick Check:
Scale-in cooldown blocks events = true [OK]
Quick Trick: Cooldown blocks scale-in events until time passes [OK]
Common Mistakes:
MISTAKES- Assuming scale-in events ignore cooldown
- Thinking cooldown extends automatically
- Believing scale-in events combine automatically
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