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System Design · Concept

Failover

Failover keeps a service running when a server fails. A standby server can take over, or multiple servers can share traffic and provide redundancy.

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  • Replication
  • Master-slave replication
  • Master-master replication
  • Availability
  • Reverse proxy
  • Load balancer

Source: system-design-primer/README.md at master · donnemartin/system-design-primer · GitHub. Checked 2026-11-03.