Setting Up Cascading Replication in PostgreSQL - Mydbops

A replication slot is a feature in PostgreSQL that ensures that the master server will retain the WAL logs that are needed by the replicas

Setup Physical PostgreSQL Replication on Ubuntu · Step 1: Install PostgreSQL Server · Step 2: Configure Primary Node · Step 3: Configure

start slot Starting from PostgreSQL , it is also necessary and useful to check for leftover replication slots The core issue is that if somebody forgets to drop a

start_replication slot Any unused replication slot must be dropped Slots hold on to Postgres WAL logs and relevant system catalogs until changes have been read by a