Working with PostgreSQL Replication Slots

Working with PostgreSQL Replication Slots oldest replication slot lag Age of the oldest replication slot transaction yet to be vacuumed in the Replay location replication lag in bytes Dependent item, oldest slot machine The lagging size of the replica lagging the most in terms of WAL data received The disk space used by replication slot files Applies to PostgreSQL type

oldest slot machine Replication lag is the delay between the time when data is written to the primary database and the time when it is replicated to the standby

pcie 20 x1 slot The lag of a replication slot can be measured as the difference between the current WAL location on the primary and the last WAL position confirmed as received High replica_lag means that the replica can't apply replication changes fast enough The total lag can be observed via replica_byte_lag metric, which has labels