Answer
Release new versions to a small traffic subset, monitor metrics, then expand rollout. Rollback instantly if issues arise.
Quick Answer
Canary deployment: route a small percentage (1-5%) of traffic to the new Node.js version using weighted load balancing (nginx, ALB, or a service mesh). Monitor error rates, latency, and business metrics for the canary. Gradually increase traffic if stable; roll back immediately if metrics degrade. Canary reduces blast radius of bad deployments.
S
SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
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Source: SugharaIQ