Replication - High Lag

The lag between primary and read replica exceeds 16 seconds without any heavy IOPS, sometimes 30 seconds I have spent a lot of effort on

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

oldest replication slot lag 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

hugo slot bewertung You can use CloudWatch metrics, Oldest Replication Slot Lag, and Transaction Logs Disk Usage to determine how far behind the most lagging replica is You can