AWS - CloudWatch
You want a CloudWatch dashboard to show CPU utilization for multiple EC2 instances side by side. Which JSON widget configuration approach is best?
You want a CloudWatch dashboard to show CPU utilization for multiple EC2 instances side by side. Which JSON widget configuration approach is best?
hard📝 Best Practice Q15 of 15
Step-by-Step Solution
Solution:
Step 1: Understand dashboard widget capabilities
A single widget can show multiple metrics side by side by listing each instance's CPU metric.Step 2: Evaluate other options for efficiency and clarity
Multiple dashboards (B) is inefficient; single metric without InstanceId (C) aggregates all instances; text widget (D) does not show metrics.Final Answer:
Create one widget with multiple metrics, each metric for one instance -> Option DQuick Check:
Multiple metrics in one widget = side-by-side display [OK]
Quick Trick: Use multiple metrics in one widget for side-by-side comparison [OK]
Common Mistakes:
- Creating separate dashboards wastes effort
- Omitting InstanceId shows combined data, not per instance
- Using text widgets instead of metric widgets
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