EC2 Metrics & Monitoring Gaps Diagnostic Troubleshooter
Use the interactive troubleshooter below to identify your EC2 metrics or monitoring gap issue by symptom, review the raw evidence, understand the root cause, and apply the recommended fix.
🚨 Step 1: What specific monitoring blind spot are you experiencing?
Please click the most accurate description:
Quick Reference Table
| # | Scenario | Key Error Signal | Root Cause | The Fix |
|---|---|---|---|---|
| 1 | CPUCreditUsage Metric Misconfiguration (Wrong Statistic) | CPU credit metrics are available at a five-minute frequency only | The Average statistic becomes mathematically inaccurate for CPU credit metrics over periods exceeding the five-minute metric emission frequency. | Use the Sum statistic instead of the Average statistic |
| 2 | Silent Failure During Encrypted Snapshot Copy | "Given key ID is not accessible" | Attempting to copy an encrypted snapshot without DescribeKey permissions on the target CMK causes a silent background failure that isn't actively pushed to the console UI. | aws ec2 describe-snapshots --snapshot-id snap-0123abcd |
| 3 | AWS/EC2CapacityReservations Metrics Black Hole | Metrics are not supported for Capacity Reservations that are active for less than five minutes | Short-lived Capacity Reservations (terminated under 5 minutes) vanish entirely without emitting any usage metrics to the CloudWatch namespace. | N/A |