[Qgis-user] Backing up GIS Data

Mon Jul 18 04:00:26 PDT 2016

Has anyone had any success with GeoGig?

Billed as: "GeoGig is an open source tool that draws inspiration from Git,
but adapts its core concepts to handle distributed versioning of geospatial
data.": http://geogig.org/

I have not yet tried so this is a query, not a recommendation.

Chris Berens, GISc
www.mapland.co.za
+27 (0)82 567 9322

On 18 July 2016 at 12:22, Jonathan Moules <jonathan-lists at lightpear.com>
wrote:

> On top of the excellent suggestions that have come out of this thread,
> it's worth stating that a backup is worthless if it is untested.
>
> You should regularly test backups to ensure you can restore from them;
> this applies to all backups. There are plenty of horror stories out there
> from organisations/people that kept "backups" they never tested, and when
> they needed them they were corrupt or otherwise not what they should have
> been.
> So be sure test your backups! :-)
>
> Cheers,
> Jonathan
>
>
> ---- On Sat, 16 Jul 2016 07:54:56 +0100 *Bo Victor Thomsen
> <bo.victor.thomsen at gmail.com <bo.victor.thomsen at gmail.com>>* wrote ----
>
> I haven't any extensive experience with moving databases from windows to
> linux or vice versa, but I've been moving (backup/restore) databases
> between windows hundred of times.
>
>    - I'm normally using the "Custom/binary" format, because it's the
>    fastest method to do the backup/restore cycle.
>    - When I'm creating/ structuring a new spatial database, I always
>    leave the "public" schema alone and put data in another schema created for
>    that purpose.
>    - When doing a backup for the purpose of moving a database, I only
>    backup the aforementioned *data* schema, *not* the "public" schema, thus
>    avoiding taking backup of hundreds of PostGIS functions residing in schema
>    "public". This makes it easier to move spatial data from one
>    PostGIS-enabled database to another without annoying errors.
>    - And - just as you - I use the "plain" format when it's necessary to
>    make some changes to the structure or fields  with a text editor during the
>    move of the database.
>
> Regards
>
> Bo Victor Thomsen
> AestasGIS
> Denmark
>
> Den 15/07/16 kl. 15:23 skrev Micha Silver:
>
> Hi
>
>
> ------ Original Message ------ Subject: Re: [Qgis-user] Backing up GIS
> Data Date: Fri, 15 Jul 2016 07:04:20 +0200 To: Qgis-user From: Bo Victor
> Thomsen
>
> As an old GIS database dog -
>
>    - It's a wise and smart decision to use Postgres/PostGis for storing
>    and using spatial data.
>    - As for backup: Do *exactly* as Jeff writes :-). "Point in time"
>    backups are nice, but not the best backup solution for Postgres databases.
>    Jeff's solution is.
>
>
> Regards
>
> Bo Victor Thomsen
> AestasGIS
> Denmark
>
>
>
>
>
>
> Den 14/07/16 kl. 21:26 skrev Jeff McKenna:
>
> Hi Tyler,
>
> This is a good question, and an important one, and don't feel bad about
> posting it here - likely we can all learn from this discussion, as it
> definitely involves the whole QGIS community.
>
> I have quite a lot of experience backing up databases, especially
> PostgreSQL/PostGIS databases.  I can tell you that it is for sure important
> to run "pg_dump" as a daily backup (in addition to your whole server
> image/backup) - that pg_dump has saved me and my clients hundreds of times,
> and it is very portable and easy to access (as opposed to your whole
> image/machine backup).  One very important point (that's I've learned from
> experience) when using pg_dump is to *always* use the custom
> binary/compressed output format (the "--format=c" commandline switch for
> pg_dump).  I've had
>
>
> I have always used the default "plain" format for pg_dump backups. When
> time comes to migrate data to a new installation, it allows me to edit the
> SQL backup file: restore only some of the tables, change owners, schema
> names, even change the database name. This is just a minor convenience. Am
> I making a mistake? Should I move to the binary format to insure
> reliability?
>
> Thanks
>
> terrible times with the other output format types, especially when
> restoring a database from a Windows server to a Linux server etc (with
> hardcoded paths inside the backup).  I live by that format, swear by it,
> from experience, moving so many client databases from one machine to
> another.
>
> Another mailing list to keep in mind is the PostGIS mailing list, where
> these backup topics also pop up from time to time - and discussions are
> more geo-related, so are very helpful, than just the generic PostgreSQL
> mailing list.
>
> So, definitely implement an additional backup process using pg_dump (you
> can experiment restoring it through the "pg_restore" command), you won't
> regret the effort spent.
>
> Happy QGIS-ing,
>
> -jeff
>
>
>
>
>
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>
> Micha Silver
> Arava Drainage Authority
> +972-523-665918
>
>
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