Everything You Need to Know About Replication Lag in PostgreSQL

Check the number of WAL files retained and spilled files for each replication slots Perfdata returns the number of WAL kept for each slot and

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

oldest replication slot lag A replication slot ensures that the WAL will not go away if the replica lags behind Without a replication slot, a primary will recycle its WAL as soon as it

gmt slot A replication slot ensures that the WAL will not go away if the replica lags behind Without a replication slot, a primary will recycle its WAL as soon as it