Re: Issue upgrading from 9.5 to 13 with pg_upgrade: "connection to database failed: FATAL: database "template1" does not exist"

> On Nov 13, 2020, at 9:58 AM, Adrian Klaver <adrian(dot)klaver(at)aklaver(dot)com> wrote:
>
> To me it seems the initdb for the 13 instance did not complete successfully. Have you tried clearing /var/lib/pgsql/13/data and doing the init over again? If you do try it monitor the output carefully.

here’s the complete process:

bash-4.4$ /usr/pgsql-13/bin/initdb -D /var/lib/pgsql/13/data/ --locale=en_US.UTF-8
The files belonging to this database system will be owned by user "postgres".
This user must also own the server process.

The database cluster will be initialized with locale "en_US.UTF-8".
The default database encoding has accordingly been set to "UTF8".
The default text search configuration will be set to "english".

Data page checksums are disabled.

fixing permissions on existing directory /var/lib/pgsql/13/data ... ok
creating subdirectories ... ok
selecting dynamic shared memory implementation ... posix
selecting default max_connections ... 100
selecting default shared_buffers ... 128MB
selecting default time zone ... America/Toronto
creating configuration files ... ok
running bootstrap script ... ok
performing post-bootstrap initialization ... ok
syncing data to disk ... ok

initdb: warning: enabling "trust" authentication for local connections
You can change this by editing pg_hba.conf or using the option -A, or
--auth-local and --auth-host, the next time you run initdb.

Success. You can now start the database server using:

/usr/pgsql-13/bin/pg_ctl -D /var/lib/pgsql/13/data/ -l logfile start

bash-4.4$ /usr/pgsql-13/bin/pg_ctl -D /var/lib/pgsql/13/data/ -l logfile start
waiting for server to start.... done
server started
bash-4.4$ psql postgres
psql (13.0)
Type "help" for help.

postgres=# \c template1
You are now connected to database "template1" as user "postgres".
template1=# \q
bash-4.4$ /usr/pgsql-13/bin/pg_ctl -D /var/lib/pgsql/13/data/ -l logfile stop
waiting for server to shut down.... done
server stopped
bash-4.4$ /usr/pgsql-13/bin/pg_upgrade --old-bindir /usr/pgsql-9.5/bin --new-bindir /usr/pgsql-13/bin --old-datadir /var/lib/pgsql/9.5/data --new-datadir /var/lib/pgsql/13/data --old-port=54320 --new-port=5432
Performing Consistency Checks
-----------------------------
Checking cluster versions ok
Checking database user is the install user ok
Checking database connection settings ok
Checking for prepared transactions ok
Checking for reg* data types in user tables ok
Checking for contrib/isn with bigint-passing mismatch ok
Checking for tables WITH OIDS ok
Checking for invalid "sql_identifier" user columns ok
Checking for invalid "unknown" user columns ok
Checking for roles starting with "pg_" ok
Creating dump of global objects ok
Creating dump of database schemas
ok
Checking for presence of required libraries ok
Checking database user is the install user ok
Checking for prepared transactions ok

If pg_upgrade fails after this point, you must re-initdb the
new cluster before continuing.

Performing Upgrade
------------------
Analyzing all rows in the new cluster ok
Freezing all rows in the new cluster ok
Deleting files from new pg_xact ok
Copying old pg_clog to new server ok
Setting next transaction ID and epoch for new cluster ok
Deleting files from new pg_multixact/offsets ok
Copying old pg_multixact/offsets to new server ok
Deleting files from new pg_multixact/members ok
Copying old pg_multixact/members to new server ok
Setting next multixact ID and offset for new cluster ok
Resetting WAL archives ok

connection to database failed: FATAL: database "template1" does not exist

could not connect to target postmaster started with the command:
"/usr/pgsql-13/bin/pg_ctl" -w -l "pg_upgrade_server.log" -D "/var/lib/pgsql/13/data" -o "-p 5432 -b -c synchronous_commit=off -c fsync=off -c full_page_writes=off -c vacuum_defer_cleanup_age=0 -c listen_addresses='' -c unix_socket_permissions=0700 -c unix_socket_directories='/var/lib/pgsql'" start
Failure, exiting