[Lizmap] External WMS slowdown

[Nicolas Boisteault]

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
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> /Eng. Roberto Marzocchi, PhD/
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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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