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Scenario #448
Scaling & Load
Kubernetes v1.23, AWS EKS
Autoscaler Skipped Scaling Events Due to Flaky Metrics
Autoscaler skipped scaling events due to unreliable metrics from external monitoring tools.
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What Happened
Metrics from external monitoring systems were inconsistent, causing scaling decisions to be missed.
Diagnosis Steps
- 1Checked the external monitoring tool integration with Kubernetes metrics and found data inconsistencies.
- 2Discovered missing or inaccurate metrics led to missed scaling events.
Root Cause
Unreliable third-party monitoring tool integration with Kubernetes.
Fix/Workaround
• Switched to using native Kubernetes metrics for autoscaling decisions.
• Ensured that metrics from third-party tools were properly validated before being used in autoscaling.Lessons Learned
Use native Kubernetes metrics where possible for more reliable autoscaling.
How to Avoid
- 1Use built-in Kubernetes metrics server and Prometheus for reliable monitoring.
- 2Validate third-party monitoring integrations to ensure accurate data.