Re: Backup From HotStandby

@Rui DeSousa <[email protected]>

Tks again, i will try this aproach or alter the script to do with the
pg_basebackup.

Tks a lot guys.

*Licio Matos*




Em qua, 28 de ago de 2019 às 17:38, Rui DeSousa <[email protected]>
escreveu:

>
>
> On Aug 28, 2019, at 4:11 PM, Licio Matos <[email protected]> wrote:
>
> @Rui DeSousa <[email protected]>
>
> I am running this on the primary, the question is if i can run this same
> script on the replica.
>
>
> You can based on what you told me about the snapshot; however, the
> pg_start_backup() command will fail.
>
> Note: What you are doing today most would consider it a “proper” online
> backup; when you start running the script on the replica then you will end
> up with a “crashed” backup.   The “crashed” backup only works as you can
> guarantee a point in time atomic view of all the data files using a single
> atomic snapshot.
>
> You need to remove the pg_start_backup() and pg_stop_backup() commands
> from the script.   The backup should occur faster as it is no longer
> waiting on pg_start_backup() to issue checkpoint; however, that also means
> that recovery times increase for the same reason.
>
>