Describe a simple high availability plan for a database in your HLD.

Problem Statement

Explanation

Use a primary with at least one replica in a different zone. Enable synchronous or semi-sync replication per RPO. Health checks drive automatic failover via a coordinator or managed service. Test failovers. Make app connections use a discovery endpoint that flips during incidents. Keep idempotency in writers to survive retried transactions.

Code Solution

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DB endpoint -> read/write router -> primary/replicas

Practice Sets

This question appears in the following practice sets:

High-Level Design (HLD) Interview Core

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Describe a simple high availability plan for a database in your HLD.

Problem Statement

Explanation

Code Solution

Practice Sets

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Master Interviews Anywhere, Anytime

Describe a simple high availability plan for a database in your HLD.

Problem Statement

Explanation

Code Solution

Practice Sets

Related Questions

Which statement best describes the Single Responsibility Principle?

Open–Closed Principle encourages what practice when adding features?

High-Level Design (HLD) typically focuses on which artifacts?

Which UML diagram best captures interactions over time between components?

Which pairing describes a healthy design goal?

More from System Design

Master Interviews
Anywhere, Anytime