[Qgis-user] Experiences using QGIS + PostgreSQL/PostGIS in a multiuser environment?

[Hernán De Angelis]

Hello Andreas

Thank you very much for your comment. These are definitely things I did 
not think about.

Our people are in two separate buildings (in two separate regions!) but 
our systems can handle this without problems.

The editing conflicts seem more serious to me. I guess these could be 
minimized by encouraging users to save edits more often but, as you 
write, a proper solution may require proper versioning. But then that 
may likely push up the costs.

Good material for thought and a test.

Thank you again!

Hernán



On 2019-11-20 11:40, Andreas Neumann wrote:
>
> Are those 15 people in the same office/same location or distributed? 
> If the latter, at how many places are they distributed?
>
> In my experience, using Postgis sources over the internet (not in the 
> LAN) is way too slow. It will only upset your users. In such a 
> scenario you would have to set up replication.
>
> Another aspect: avoid editing the same features simultaneously by 
> different users. Only the last save will stay. QGIS starts an edit 
> session and will only save at the end of the sesssion, when you 
> actually save the features. In such a scenario you should assign 
> certain geographic areas to different users (e.g. user A edits 
> features in municipality x, and user b in municipality y, but not x).
>
> Otherwise you will have to deal with handling conflicts. That would 
> require more complicated table setups with versioning and conflict 
> detection.
>
> Andreas
>
> On 2019-11-20 11:32, Hernán De Angelis wrote:
>
>> I am evaluating setting up a server running PostgreSQL/PostGIS for use
>>>> as data sharing/collaborating environment for spatial data. The user
>>>> group may consist of up to 15 people, mostly using QGIS but one or two
>>>> may use other software (non OS). Data is almost exclusively of vector
>>>> type. The use is within a single organization.
>>>>
>>>> I understand some people in this list have experience with this kind of
>>>> environment and would appreciate if any of you would share any useful
>>>> experience, challenges, thought or things to watch out for. I understand
>>>> basic management routines are critical (user management, user rights),
>>>> as well as a sound backup and update strategy. I also understand that
>>>> proper data management procedures have to be in place, like rules for
>>>> table creation and eventual deletion, attribute selection, etc. But what
>>>> else can go wrong with this kind of setup if not managed properly?
>>>> Thoughts and experiences welcome!
>>> in our experience the solution is pretty straightforward. The only other
>>> challenge I'd add is having good bandwidth, otherwise using PostGIS data
>>> can be sluggish.
>>> All the best.
>>
>> Excellent point, Paolo! I had not thought about it. Thank you!
>>
>> All the best
>>
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