From the error log:
FATAL: hot standby is not possible because wal_level was not set to "hot_standby" or higher on the master server
HINT: Either set wal_level to "hot_standby" on the master, or turn off hot_standby here.
I tried setting hot_standby to off, but that didn't help.
I set the wal_level to "hot_standby" and hot_standby to on, and now it appears to have made progress.
The service starts up without failing.
> check if there's an entry in pg_stat_replication on the primary.
No. No entries.
There is now an entry on the primary.
But still can't connect from Navicat on the primary server and the log says
FATAL: could not receive data from WAL stream: server closed the connection unexpectedly
This probably means the server terminated abnormally
before or while processing the request.
LOG: record with zero length at 6B/63000090
FATAL: could not connect to the primary server: FATAL: the database system is starting up
LOG: started streaming WAL from primary at 6B/63000000 on timeline 1
LOG: startup process (PID 3368) exited with exit code 1
LOG: terminating any other active server processes
¯\_(ツ)_/¯
