Introduction to WAL files and Replication Slots in PostgreSQL

Introduction to WAL files and Replication Slots in PostgreSQL postgres delete replication slot Yes Let's say there are node1 and node2 in the cluster If node3 will join, any unknown replication slot is removed It was the behavior from postgresql drop replication slot The solution is replication slots, a feature provided by Postgres that ensures the primary server only discards WAL records after they have been received by the

postgresql drop replication slot replication mode and in order to be able to create or drop replication slots A role having the REPLICATION

postgres drop replication slot The logical solution is to make the primary to keep track of how far behind the standby is, and to not delete WAL files that any standbys still Usage · DROP SUBSCRIPTION cannot be executed in a transaction · execution will fail if the replication slot cannot be dropped, because the publisher is