Gunnar Morling 7/8/2025

Mastering Postgres Replication Slots: Preventing WAL Bloat and Other Production Issues

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This technical guide details strategies for preventing write-ahead log (WAL) bloat and other issues when using PostgreSQL replication slots for Change Data Capture (CDC). It covers using the pgoutput plug-in, setting slot size limits, enabling heartbeats, configuring publications and filters, implementing fail-over slots, and critical monitoring practices.

Mastering Postgres Replication Slots: Preventing WAL Bloat and Other Production Issues

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