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System Design · Concept

Health Check

Service discovery helps services find one another by storing names, addresses, and ports. Health checks help identify services that are working before clients use them.

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In-depth API docs are only for subscribers: parameters, examples, common mistakes and interview practice.

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  • Consul
  • Etcd
  • Zookeeper
  • Health checks
  • HTTP endpoint
  • Key-value store

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