On Dec 7, 7:37 pm, Thadeus Burgess <thade...@thadeusb.com> wrote:
> why 1 over 2?

The simple answer is that csv files are only about saving data, and
may involve conversions at that;
[1] - by using a native database backup, do not risk conversion
effects, and perhaps more to the point will include backup of things
that web2py cannot backup, e.g. meta-data for the db (e.g.
permissions, logins, etc.)

Whenever backing up, use the closest to the "original" source to
backup as possible.

It's the same reason a disk image is more likely to work like the
original than a file-system based backup of an operating system
environment.

- Yarko
>
> -Thadeus
>
>
>
> On Mon, Dec 7, 2009 at 6:47 PM, mdipierro <mdipie...@cs.depaul.edu> wrote:
> > I suggest
>
> > 1) Use the backend database built-in backup utilities (such as
> > postgres
> > pg-dump), using cron to tar.gz the files and put them in their
> > respective locations.
>
> > if available else:
>
> > 2) Use web2py cron, using export_to_csv file, and then tarfile to
> > compress and then save the file in its correct location, all from
> > within web2py
>
> > On Dec 7, 3:52 pm, Thadeus Burgess <thade...@thadeusb.com> wrote:
> >> What would the preferred method of data backup be?
>
> >> * Use web2py cron, using export_to_csv file, and then tarfile to
> >> compress and then save the file in its correct location, all from
> >> within web2py?
> >> * Use the backend database built-in backup utilities (such as postgres
> >> pg-dump), using cron to tar.gz the files and put them in their
> >> respective locations.
> >> * Use a filesystem level backup, backing up the actual database files on 
> >> disk.
> >> * Use online backup with PITR (as noted in the postgres 
> >> manual:http://www.postgresql.org/docs/8.1/static/backup-online.html)
>
> >> -Thadeus
>
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