Managing replication slots

A physical replication slot prevents a source DB instance from removing WAL data before it's consumed by all read replicas Each read replica has its own

Now a common cause for this kind of issue are replication slots which are not advanced: in that case, Postgres will hold on to all WAL segments

postgresql create replication slot A limitation of the PostgreSQL implementation is that replication slots are not cluster-aware: a replication slot exists solely on the instance

postgresql drop replication slot Replication slots in PostgreSQL are a mechanism for streaming physical and logical replication to keep the standby servers current with