Multi-CDN and CDN failover for video platforms
Why one CDN is a single point of failure on exam and launch days, how DNS, player-side and content-steering failover compare, and what must match across CDNs.
#reliability
3 articles tagged #reliability
Articles
RTO and RPO: planning disaster recovery that works
Set recovery time and recovery point objectives per system, choose between backup and restore, pilot light, warm standby and active/active, apply 3-2-1 backups and run drills.
Zero-downtime deployment: blue-green, canary and rolling
Deploy during a live class without anyone noticing: rolling, blue-green and canary compared, draining connections and WebSockets, feature flags and exam-day deploy freezes.
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