I'm working with an RDS instance running 12 that has an old subscription that I can't seem to drop.
The logs show this, repeating every 5 seconds or so.
2021-07-09 16:08:07 UTC::@:[1637]:LOG: logical replication apply worker for subscription "metro" has started 2021-07-09 16:08:07 UTC::@:[1637]:ERROR: could not connect to the publisher: could not connect to server: Connection refused Is the server running on host "dbp3" (108.200.30.101) and accepting TCP/IP connections on port 5433?
dbp3 is long gone--the server no long exists.
It shows up here:
mirror_admin@metro_logical> select * from pg_subscription; oid │ subdbid │ subname │ subowner │ subenabled │ subconninfo │ subslotname │ subsynccommit │ subpublications ───────┼─────────┼─────────────────┼──────────┼────────────┼───────────────────────────────────────────────────────────────┼─────────────────┼───────────────┼──────────────────────── 83645 │ 66754 │ cargowel_common │ 16394 │ t │ host=108.200.30.103 port=5433 user=postgres dbname=metro_prod │ cargowel_common │ off │ {cargowel_common_prod} 83646 │ 66754 │ metro_prod │ 16394 │ t │ host=108.200.30.103 port=5433 user=postgres dbname=metro_prod │ metro_prod │ off │ {metro_prod} 51490 │ 14313 │ metro │ 16394 │ t │ dbname=metro host=dbp3 port=5433 user=repmgr │ metro │ off │ {metro} (3 rows)
Time: 28.627 ms
But not in here:
mirror_admin@metro_logical> \dRs+ List of subscriptions Name │ Owner │ Enabled │ Publication │ Synchronous commit │ Conninfo ─────────────────┼──────────────┼─────────┼────────────────────────┼────────────────────┼─────────────────────────────────────────────────────────────── cargowel_common │ mirror_admin │ t │ {cargowel_common_prod} │ off │ host=108.200.30.103 port=5433 user=postgres dbname=metro_prod metro_prod │ mirror_admin │ t │ {metro_prod} │ off │ host=108.200.30.103 port=5433 user=postgres dbname=metro_prod (2 rows)
And it can't be disabled or dropped:
mirror_admin@metro_logical> alter subscription metro disable; ERROR: subscription "metro" does not exist Time: 24.263 ms mirror_admin@metro_logical> drop subscription metro; ERROR: subscription "metro" does not exist Time: 23.648 ms
I did try deleting it directly from the pg_subscription table but that failed with a permission denied error. My suspicion is that's because of the RDS environment.
What else can I try to remove this old non-functional subscription?