Re: pg_basebackup --incremental

Hi Ron,

If I may, please. What are the postgres.conf parameters you set
specifically for pgBackRest?

Thanks,

Sam

On Tue, Oct 28, 2025 at 3:21 PM Sam Stearns <sam(dot)stearns(at)dat(dot)com> wrote:

> Thanks, Ron! We'll take another look at pgBackRest.
>
> On Tue, Oct 28, 2025 at 10:52 AM Ron Johnson <ronljohnsonjr(at)gmail(dot)com>
> wrote:
>
>> On Tue, Oct 28, 2025 at 1: 43 PM Sam Stearns <sam. stearns@ dat. com>
>> wrote: Howdy, We're running version 17. 6. Would anyone be able to point me
>> to, or provide, some sample use cases / scripts / usage to deploy a
>> pg_basebackup full + --incremental
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>> On Tue, Oct 28, 2025 at 1:43 PM Sam Stearns <sam(dot)stearns(at)dat(dot)com> wrote:
>>
>>> Howdy,
>>>
>>> We're running version 17.6. Would anyone be able to point me to, or
>>> provide, some sample use cases / scripts / usage to deploy a pg_basebackup
>>> full + --incremental strategy as a backup solution, please?
>>>
>>
>> The question confuses me a bit (though maybe because weekly "full", and
>> remainder "incremental" is pretty standard). PgBackRest really is quite
>> simple and easy to configure if you back up to a local mount point (even
>> when that mount point is NFS).
>>
>> This is in the "postgres" crontab:
>> 15 01 * * Sun Type=full; pgbackrest backup --stanza=nfs --type=$Type &>
>> logs/pgbackrest_$(date +"\%F_\%T")_${Type}.log
>> 15 01 * * 1-6 Type=incr; pgbackrest backup --stanza=nfs --type=$Type &>
>> logs/pgbackrest_$(date +"\%F_\%T")_${Type}.log
>>
>> And this is my /etc/pgbackrest.conf:
>> [global]
>> repo1-path=/Database/backups/pgbackrest
>> repo1-cipher-type=aes-256-cbc
>> repo1-cipher-pass=<redacted>
>> repo1-bundle=y
>> repo1-bundle-limit=20MiB
>> repo1-bundle-size=200MiB
>> [nfs]
>> pg1-path=/Database/17/data
>> resume=n
>> start-fast=y
>> stop-auto=y
>> compress-type=zst
>> log-level-console=detail
>> log-level-file=info
>> log-path=/var/lib/pgsql/logs/pgbackrest
>> retention-full=4
>> process-max=<nproc * 3/4>
>> [nfs:archive-push]
>> compress-type=zst
>>
>> --
>> Death to <Redacted>, and butter sauce.
>> Don't boil me, I'm still alive.
>> <Redacted> lobster!
>>
>
>
> --
>
> Samuel Stearns
> Team Lead - Database
> c: 971 762 6879 | o: 971 762 6879 | DAT.com
>
> <https://www.dat.com/?utm_medium=email&utm_source=DAT_email_signature_link>
>
>

--

Samuel Stearns
Team Lead - Database
c: 971 762 6879 | o: 971 762 6879 | DAT.com

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