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Database Connection Failover Basics

Handle DB failover smoothly

Preparing for DB failover means using connection pools with health checks, retry/backoff on transient errors, DNS/endpoint strategies for new primaries, and testing failover to avoid long outages.

Detect

Use health checks/driver signals to detect role changes.

Retry

Implement backoff retries on transient errors; avoid hot loops.

Reconnect

Use DNS/cluster endpoints; test failover and pool refresh.

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