<div dir="ltr"><div>Hey All</div><div>I believe these may go some way towards helping the issue - the first one is planned to go ahead this year</div><div>
<span class="gmail-im"><div><a href="https://github.com/qgis/QGIS-Enhancement-Proposals/issues/261" target="_blank">https://github.com/qgis/QGIS-Enhancement-Proposals/issues/261</a></div><div></div><div><a href="https://github.com/qgis/QGIS/pull/53069" target="_blank">https://github.com/qgis/QGIS/pull/53069</a></div></span> <br></div><div>Cheers</div><div>Em<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, 23 Jul 2024 at 12:55, Stewart Holt via QGIS-User <<a href="mailto:qgis-user@lists.osgeo.org">qgis-user@lists.osgeo.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">I have for years noticed the same thing. I also have about 30 WMS and WMTS layers which are mostly USGS National Map product layers and a few ESRI. When QGIS starts, I see in the status bar, each layer that is loaded. It rips through my shapefiles and then takes quite a bit of time to "load" the WMS/WMTS layers. Only about 2 of these layers are checkmarked to be displayed at any given time. QGIS apparently does some initialization on these layers, even if they are not to be initially displayed. While it is valuable to get a full check of the availability of layers on startup, it would be much faster to either lazy initialize these as needed or to spread it out over my 24 cores to do it in parallel. Occasionally some or all of the layers are not available for periods of time. When this happens, it really takes a long time to startup. I have set the network timeout from the default (1 minute?) to 15 seconds to make that situation less painful. I think the delay is caused by the time it takes for the WMS service to respond, not processing time. My internet connection is 1 Gbps.<div><br></div><div>I think one of the best solutions would be to load the network based layers marked to be displayed, then make the map canvas available for use and either continue to load the remaining layers in the background or lazy initialize them as needed. I wonder how many others face this situation and if there would be sufficient interest to submit a request for an enhancement.</div><div><br></div><div>Thanks,</div><div><br></div><div>Stewart Holt</div><div>Georgia Appalachian Trail Club GIS</div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Jul 19, 2024 at 5:04 AM Thomas Larsen Wessel via QGIS-User <<a href="mailto:qgis-user@lists.osgeo.org" target="_blank">qgis-user@lists.osgeo.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">I have a project with roughly 30 WFS layers. Most of the layers are disabled by default, and I rarely have more than 10 of those layers enabled in any session. <div></div><div><br></div><div>But as far as I can tell, it loads all data from all WFS layers, no matter if the layers are enabled or not. Am I right?</div><div><br></div><div>Does this happen in sequence or in parallel?</div><div><br></div><div>It takes 100 seconds from clicking open, until the GUI updates to show the loaded project (for the above mentioned project with 30 WFS layers). I believe the Internet connection is the bottleneck. Often I'm on a cell phone connection, and the load time is much worse. </div><div><br></div><div>Is there anything I can do to make it not load all WFS data right away? Eg not load features from any disabled layer, until I actually need it?</div><div><br></div><div>Sincerely, Thomas</div></div>
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</blockquote></div><br clear="all"><br><span class="gmail_signature_prefix">-- </span><br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div style="margin-bottom:20px;font-family:verdana,sans-serif;color:rgb(68,68,68)">Emma Hain — Product Manager/Senior GIS Analyst<br>
<a href="mailto:emma@north-road.com" style="color:rgb(78,141,175);text-decoration:none" target="_blank">emma@north-road.com</a> <br></div>
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