Databases: Spike in AWS RDS Oldest Replication Slot lag

replication slots preserve WAL files, allowing the master to track standby lag xmin: This represents the oldest transaction this slot

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

oldest replication slot lag Two Amazon CloudWatch metrics, Oldest Replication Slot Lag and Transaction During this phase, the replication lag time for the read replica is greater than 0

pg slot auto game Barman introduces support for replication slots with PostgreSQL servers or above, therefore allowing WAL streamingonly configurations