wal_level 必须为 logical。max_replication_slots 和 max_wal_senders 参数需要大于待迁移的数据库总数。max_worker_processes 必须大于 max_logical_replication_workers 的值。wal_level，max_replication_slots，max_worker_processes 和 max_wal_senders 的方法如下。wal_level。wal_level = logical
postgres=> select name,setting from pg_settings where name='wal_level';name | setting-----------+---------wal_level | logical(1 row)postgres=> select name,setting from pg_settings where name='max_replication_slots';name | setting-----------------------+---------max_replication_slots | 10(1 row)postgres=> select name,setting from pg_settings where name='max_wal_senders';name | setting-----------------+---------max_wal_senders | 10(1 row)
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