Ctrip Technology
Dec 30, 2021 · Cloud Computing
Ctrip’s Practice of Using AWS Spot Instances for Cost Reduction and High Availability
This article details Ctrip’s large‑scale use of AWS Spot instances on Kubernetes, explaining the cost benefits, the challenges of spot interruptions, and the architectural and operational strategies—including multi‑AZ deployment, scheduling policies, autoscaling group design, and observability—that enable a 50% reduction in container costs while maintaining system stability and reliability.
AWS SpotCloud ComputingHigh Availability
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