Re: data_checksums enabled by default (was: Move --data-checksums to common options in initdb --help) - Mailing list pgsql-hackers

From Michael Banck
Subject Re: data_checksums enabled by default (was: Move --data-checksums to common options in initdb --help)
Date
Msg-id 1e461f183028b54bd6f9c8c855508ad5d2cb44f6.camel@credativ.de
Whole thread Raw
In response to Re: data_checksums enabled by default (was: Move --data-checksums to common options in initdb --help)  (Peter Geoghegan <pg@bowt.ie>)
Responses Re: data_checksums enabled by default (was: Move --data-checksums to common options in initdb --help)
List pgsql-hackers
Hi,

Am Mittwoch, den 06.01.2021, 13:19 -0800 schrieb Peter Geoghegan:
> On Wed, Jan 6, 2021 at 1:08 PM Peter Geoghegan <pg@bowt.ie> wrote:
> > So you tested this using "show data_checksums;" in psql in each case?
> > 
> > What does "show full_page_writes;" show you?
> 
> Another consideration is checkpoint_timeout 

That one seems to be 5min everywhere, and one can change it except on
Azure.

> and max_wal_size.

I think this one is usually based on instance size, but I only have
access to two differently sized instance on Azure right now, where it is
1GB for the smallest possible one and 32GB for a production instance.
It's 1GB for the small Google Cloud SQL Postgres and 2GB for the small
RDS test instance. It is user-changeable everywhere (at least to some
degree).


Michael

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