[Solved] You have this auto-scaling policy JSON snippet:{ "MinCapacity": 5, "MaxCapacity": 100, "TargetValue": 80.0, "ScaleInCooldown": 30, "ScaleOutCooldown": 30 }But the policy is not working as expected.... | DynamoDB

DynamoDB - Cost Optimization and Monitoring

You have this auto-scaling policy JSON snippet:

{
  "MinCapacity": 5,
  "MaxCapacity": 100,
  "TargetValue": 80.0,
  "ScaleInCooldown": 30,
  "ScaleOutCooldown": 30
}

But the policy is not working as expected. What is the likely error?

AMinCapacity is greater than MaxCapacity

BMissing required field for resource ID

CTargetValue should be between 0 and 1, not 80.0

DCooldown times are too short and cause rapid scaling

Step-by-Step Solution

Solution:

Step 1: Check capacity and cooldown values
MinCapacity (5) is less than MaxCapacity (100), cooldowns are valid numbers.
Step 2: Identify missing required fields
Auto-scaling policies require resource identifiers (like ResourceId) to apply the policy.
Step 3: Confirm TargetValue range
TargetValue is a percentage and 80.0 is valid.
Final Answer:
Missing required field for resource ID -> Option B
Quick Check:
Missing resource ID causes policy failure = A [OK]

Quick Trick: Check for all required fields, not just values [OK]

Common Mistakes:

MISTAKES

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You have this auto-scaling policy JSON snippet: