Re: Postgres 9.6 to 12.7 pg_upgrade error - terminating connection due to administrator command - Mailing list pgsql-general

I am currently upgrading a Postgres cluster running on a Centos machine from version 9.6.22 to 12.7. Post the install of 12.7 binaries, I am running the pg_upgrade command:

/usr/pgsql-12/bin/pg_upgrade -b /usr/pgsql-9.6/bin/ -B /usr/pgsql-12/bin/ -d /<path>/9.6/data.old -D /<path>/12/data/ -j 12 -r -v -k

But, I am getting multiple errors during the "Restoring database schemas in the new cluster" step:

pg_restore: creating TABLE "schema1.table1"
pg_restore: creating TABLE "schema1.table2"
pg_restore: creating TABLE "schema1.table3"
pg_restore: while PROCESSING TOC:
pg_restore: from TOC entry 358; 1259 793395 TABLE table3 postgres
pg_restore: error: could not execute query: FATAL:  terminating connection due to administrator command
server closed the connection unexpectedly    This probably means the server terminated abnormally    before or while processing the request.
Command was:
-- For binary upgrade, must preserve pg_type oid
SELECT pg_catalog.binary_upgrade_set_next_pg_type_oid('793397'::pg_catalog.oid);


-- For binary upgrade, must preserve pg_type array oid
SELECT pg_catalog.binary_upgrade_set_next_array_pg_type_oid('793396'::pg_catalog.oid);


-- For binary upgrade, must preserve pg_class oids
SELECT pg_catalog.binary_upgrade_set_next_heap_pg_class_oid('793395'::pg_catalog.oid);

CREATE TABLE "schema1"."table3" (    "date_key" integer NOT NULL,    "col1" character varying(32),    "col2" character varying(32),    "col3" character varying(32) NOT NULL
);

-- For binary upgrade, set 

```
LOG: background worker "logical replication launcher" (PID 35687) exited with exit code 1
LOG: shutting down
LOG: database system is shut down
LOG: database system was shut down at 2021-07-30 01:33:51 GMT
LOG: database system is ready to accept connections ERROR: relation "sequence2" already exists
```

I am getting an error even after only initDB and running upgrade. Any suggestions on what could be going wrong?

Thanks in advance!