Everything You Need to Know About Replication Lag in PostgreSQL

How to use streaming replication with PostgreSQL oldest replication slot lag Spikes in Oldest Replication Slot Lag · Mohammad Hafizullah · alex @ · Christophe Pettus oldest replication slot lag 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

1970s slot machine Oldest xmin Age, oldest_backend_xmin_age, Count, Age in units of the Maximum lag across all asynchronous physical replication slots