[Lizmap] External WMS slowdown

[Nicolas Boisteault]

Paolo, what I see is that you put 80 external layers in this project and 
the getProjectConfig request [0] take one minute to finish.

Can you open a ticket, I'll investigate what's happening with this 
getProjectConfig request. Thanks.

[0] : 
https://lizmap.faunalia.eu/index.php/lizmap/service/getProjectConfig?repository=faunalia&project=ext_wms

Le 30/11/2020 à 17:34, Paolo Cavallini a écrit :
> https://lizmap.faunalia.eu/index.php/view/map/?repository=faunalia&project=ext_wms
> cheers
>
> Il 30/11/20 17:00, Nicolas Boisteault ha scritto:
>> Yes please.
>>
>> Le 30/11/2020 à 17:03, Paolo Cavallini a écrit :
>>> not for now, but I can set it up if useful
>>> cheers.
>>>
>>> Il 30/11/20 16:59, Nicolas Boisteault ha scritto:
>>>> Paolo, do you have any public Lizmap showing this behavior?
>>>>
>>>> Le 30/11/2020 à 17:00, Paolo Cavallini a écrit :
>>>>> exactly. when checking this, I assume all the slowdown is due to Lizmap
>>>>> requesting GetCappabilities even before loading layers, which in
>>>>> case of
>>>>> many WMSs slows down considerably initial loading of the project.
>>>>> Cheers.
>>>>>
>>>>> Il 30/11/20 16:14, Nicolas Boisteault ha scritto:
>>>>>> It depends on the "Get images directly from WMS Server" checkbox in
>>>>>> Lizmap plugin.
>>>>>>
>>>>>> Le 30/11/2020 à 15:54, Paolo Cavallini a écrit :
>>>>>>> I assume external WMS read directly do not go through qgis.
>>>>>>> am I wrong?
>>>>>>> cheers.
>>>>>>>
>>>>>>> Il 30/11/20 12:39, Roberto Marzocchi ha scritto:
>>>>>>>> We encountered the same problem.
>>>>>>>> Are you sure it is a problem of LWC? I've always thought it is a
>>>>>>>> problem
>>>>>>>> of QGIS server
>>>>>>>>
>>>>>>>> R
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
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>>>>>>>>
>>>>>>>> ---- Attivato gio, 26 nov 2020 11:33:52 +0100 *Paolo Cavallini
>>>>>>>> <cavallini at faunalia.it>* ha scritto ----
>>>>>>>>
>>>>>>>>         Hi all,
>>>>>>>>         I noticed that a large number of external WMS in a project
>>>>>>>> slows
>>>>>>>> down
>>>>>>>>         initial loading of the project. I assume this is due to a
>>>>>>>>         ``GetCapabilities`` call on project parsing. Am I right? Is
>>>>>>>> there a way
>>>>>>>>         of avoiding this, and calling ``GetCapabilities`` only on
>>>>>>>> layer
>>>>>>>>         activation? In this way one could e.g. have external WMS in a
>>>>>>>> mutually
>>>>>>>>         exclusive group, so only ona call is issued at a time.
>>>>>>>>         Thanks for any hint.
>>>>>>>>         --
>>>>>>>>         Paolo Cavallini
>>>>>>>>         www.faunalia.eu - QGIS.org
>>>>>>>>         training, support, development on QGIS, PostGIS and more
>>>>>>>>         _______________________________________________
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>>>>>>>>
>>>>>>>>
>>>>>>>>
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