Replication & High Availability

Losing a primary shouldn’t mean losing sleep. This hub covers building resilient Postgres clusters: streaming replication from first principles, replication slots and their failure modes, monitoring lag before it bites, and the promotion drills that make failover boring.

Articles

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  PostgreSQL Streaming Replication Setup: The Missed Half

  Configure PostgreSQL streaming replication step by step — pg_basebackup, standby.signal, replication slots, lag checks, and safe promotion.

  2026-08-03