Hi,
another way would be to, while everything running, you create a second slave on the new machine on rocky8 with a pg_basebackup.
and start the new slave.
when low activity, you just stop the master, then promote the slave => new master up
then modify the connection line in your recovery.conf file in the old slave, and restart it.
maybe adding first:
recovery_target_timeline latest in the recovery.conf file
On Mon, Feb 14, 2022 at 8:59 PM Glen Eustace <geustace@xxxxxxxxxxxxxx> wrote:
On 15/02/22 8:39 am, Alan Hodgson wrote:
> pg_dump -> restore will break your streaming replication. You'll need
> to set it up again.
That's what I thought might be the case.
>
> If the PG version isn't changing and you're still on the same version
> of Linux, rsync would be easier.
I did an ELevate upgrade on the slave from CentOS7 to Rocky8 and then
just rename 10/data to data and that seemed to work just fine.
But upgrading that way takes too long for the master so I build a new
server instead. So, if I shutdown both postgresql instances old and new,
rsync the data directory and restart on the new. I should be OK ?
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