Logical Replication in PostgreSQL

Now a common cause for this kind of issue are replication slots which are not advanced: in that case, Postgres will hold on to all WAL segments

Logical Replication in PostgreSQL Unused slots can be dropped to remove WAL segments using the pg_drop_replication_slot command There generally is one replication slot and WAL sender per

Now a common cause for this kind of issue are replication slots which are not advanced: in that case, Postgres will hold on to all WAL segments

postgresql drop replication slot The concept of replication slots was introduced in PostgreSQL and was created to prevent a primary instance to delete WAL that a replica

The slot to be dropped must be inactive before it can be removed It is not possible to forcibly drop an active replication slot Change history PostgreSQL

postgresql replication slot The replication slot basically tells Postgres not to recycle or remove any WAL files that could ultimately prevent it from catching up with

Replication is done through publications, a method of choosing which changes to send to other systems Publications can