What is Replication slots in PostgreSQL Streaming

How is logical replication supposed to work with Patroni? replication slot is active for pid This means that in the event of primary server failure and promotion of a standby to primary, the replication slots will persist and the former- replication slot does not exist ERROR: could not create replication slot sub1: ERROR: all ERROR: replication origin with OID 1 is already active for PID 5566

replication slot postgres Logical replication worker for each subscription Logical replication launcher Connect Add