AWS - Auto Scaling
You created a step scaling policy but it never triggers. Which of the following is a likely cause?
You created a step scaling policy but it never triggers. Which of the following is a likely cause?
medium📝 Debug Q6 of 15
Step-by-Step Solution
Solution:
Step 1: Check alarm state requirement
Step scaling policies trigger only when the linked CloudWatch alarm is in ALARM state.Step 2: Evaluate other options
Scaling adjustment zero means no change but policy still triggers; TargetTrackingScaling is a different policy; no instances does not prevent triggering.Final Answer:
The CloudWatch alarm is not in the ALARM state -> Option CQuick Check:
Alarm state ALARM required for step scaling trigger [OK]
Quick Trick: Step scaling needs alarm in ALARM state to trigger [OK]
Common Mistakes:
- Ignoring alarm state
- Confusing policy types
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