Introduction to Autoscaling
Talkat KubeCon + CloudNativeCon North America 2020 Virtual · on Wednesday, 2020-11-18· at 16:55· Intrado Virtual Event Platform,·
summary
Covers how Kubernetes reduces cost and handles load using Horizontal Pod Autoscaler, Vertical Pod Autoscaler and Cluster Autoscaler with concrete mechanics: the cluster autoscaler simulates scheduler placement and scales nodes up for unschedulable pods, VPA recommends new requests and deletes pods one by one to apply them, HPA uses resource or external/custom metrics. Advises preStop hooks (default 30s), readiness probes, pod disruption budgets, namespace resource quotas to avoid runaway scaling, warns against HPA+VPA on the same metric, and notes one fleet had 20+ instance types yet >50% of pods land on two types.
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chapters (9)
- 0:00Intro
- 0:45What is Autoscaling
- 8:10Upcoming features
- 15:00Safe to Eviction
- 19:00Horizontal Product Scaling
- 22:45Example
- 23:35Vertical Autoscaling
- 27:45Wrap up
- 28:13Questions
