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Stop 06 · Database ServicesTopics · 3/10

Database Replication & High Availability

Part of the Cloud Computing Roadmap

In short

Automatically maintaining synchronized copies of your database across zones or regions — Multi-AZ deployments provide automatic failover if the primary database instance fails.

How to learn this

  1. 1Enable a Multi-AZ (or equivalent) deployment on a sample managed database.
  2. 2Learn the difference between synchronous replication (for HA) and asynchronous (often for read replicas).
  3. 3Understand the trade-off between replication cost and the downtime risk it protects against.

More topics at this stop

Relational Databases in the Cloud (RDS)NoSQL Databases (DynamoDB, Cosmos DB)Database Backups & SnapshotsRead Replicas & Scaling ReadsDatabase Migration BasicsCaching Layers (ElastiCache / Redis)Data Warehousing (Redshift, BigQuery)Choosing the Right DatabaseDatabase Security

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