Troubleshoot a PostgreSQL AWS DMS task with used replication slots

PostgreSQL 12: Copying replication slots replication slot postgres Replication slots were introduced with PostgreSQL and are designed to ensure that any standby connected to the primary using a replication slot will always replication slot already exists Replication in PostgreSQL works by processing WAL files In order for this to work, all WAL files have to be transiently available until they

replication slot PostgreSQL Replication Slots Replication slots provide an automated way to ensure that the master does not remove WAL segments until they have