PostgreSQL Replication Slots

Replication Slots · the oldest WAL required by the consumer of the slot

The BDR group replication slot is however inactive most of the time BDR maintains this slot and advances its LSN when all other peers have already consumed the

oldest slot machine To prevent this deletion of logs, Postgres offers replication slots A replication slot is a record in the database with a name and a “last

space man slot The age of the oldest unvacuumed transaction ID, in transactions oldestReplicationSlotLag Shows how far behind in seconds the most lagging replica is in terms