Re: setting up streaming replication, part 2

Hi,

Le mer. 25 oct. 2023 à 02:29, Brad White <b55white(at)gmail(dot)com> a écrit :

> I have the replication server set up and the streaming is working.
> The latest data show up, as desired.
>
> 3 minor issues.
>
> 1) I also have the WAL files being copied to a common location from the
> primary server with
> archive_command = 'copy %p
> "\\\\DISKSTATION\\AccessData\\Prod\\WALfiles\\%f"'
>
> It's not clear to me how the replication server finds those files.
>
>
The secondary finds those files if you set up the restore_command GUC on it.

> I also have the cleanup set to go, but it doesn't seem to be cleaning up
> any of the archived files.
> archive_cleanup_command = 'pg_archivecleanup
> \\\\DISKSTATION\\AccessData\\Prod\\WALfiles %r'
>
>
This needs to be set up on the secondary. The primary won't care about that
setup.

> 2) I have the connection string set for the replication server to connect,
> primary_conninfo = 'host = 192.168.1.112 port = 5433 user =
> {pg_rep_user }password = {password}'
> But the log file shows
> LOG: waiting for WAL to become available at 2/A10000B8
> FATAL: could not connect to the primary server: connection to server
> at "{IP}", port 5433 failed: fe_sendauth: no password supplied
>
>

You need to set up the .pgpass file (on Unix) or pgpass.conf (on Windows).
Seems quite complex to figure out where to put that file on Windows.

3) When I run
> "C:\Program Files\PostgreSQL\15\bin\pg_ctl.exe" promote -D "C:\Program
> Files\PostgreSQL\15\data"
> on the backup to promote it to Primary, I get
> pg_ctl: could not send promote signal (PID: 3996): Operation not
> permitted
>
>
I guess you need to be the postgres user to execute that. On Linux, I would
use sudo. Don't know for WIndows.

--
Guillaume.