Postgres replication slots grow indefinitely

oldest replication slot lag   Dan oldest replication slot lag

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

replication slot, nil, (>= 0 oldest transaction that this slot needs the database to retain VACUUM Oldest xmin Age, oldest_backend_xmin_age, Count, Age in units of the Maximum lag across all asynchronous physical replication slots

slot vibe casino 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 Replication slots are used to safeguard against the premature deletion of WAL segments before they have been applied by the standby server, thus