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<p class="MsoNormal"><span style="color:#1F497D">I don’t know how fast is but I have a whole dedicated server just for do that with a development URL that I’m using just to develop, is still configured in HTTP/1, looking to make some test on a new server to
setup HTTP/2 with NGINX and possibly WMTS.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">I’m seeding with a bash file and I can see (with TOP) that it’s using about 60/80% CPU usage and other HTTPD requests make it from the APACHE user.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-GB">Sebastiano Laini<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-GB">Web Developer<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="mso-fareast-language:EN-GB">From:</span></b><span lang="EN-US" style="mso-fareast-language:EN-GB"> Rahkonen Jukka (MML) [mailto:jukka.rahkonen@maanmittauslaitos.fi]
<br>
<b>Sent:</b> 22 February 2019 15:03<br>
<b>To:</b> Sebastiano Laini <Sebastiano.Laini@BuchananComputing.co.uk>; 'mapserver-users@lists.osgeo.org' <mapserver-users@lists.osgeo.org><br>
<b>Subject:</b> Re: mapcache seed slow<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="FI">Hi,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="FI"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Stupid question, but do you know how fast your WMS service is? How many GetMap requests/sec it can serve with the metatile size that you are seeding with? Have you some evidence that WMS is running idle while MapCache
is busy with cutting the tiles and filling the cache?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">-Jukka Rahkonen-<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="FI" style="mso-fareast-language:FI">Lähettäjä:</span></b><span lang="FI" style="mso-fareast-language:FI"> mapserver-users <<a href="mailto:mapserver-users-bounces@lists.osgeo.org">mapserver-users-bounces@lists.osgeo.org</a>>
<b>Puolesta </b>Sebastiano Laini<br>
<b>Lähetetty:</b> perjantai 22. helmikuuta 2019 13.35<br>
<b>Vastaanottaja:</b> 'mapserver-users@lists.osgeo.org' <<a href="mailto:mapserver-users@lists.osgeo.org">mapserver-users@lists.osgeo.org</a>><br>
<b>Aihe:</b> [mapserver-users] mapcache seed slow<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="FI"><o:p> </o:p></span></p>
<p class="MsoNormal">Hi all,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I’m trying to seed the whole UK at all zoom lv with these resolutions<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><resolutions>280 140 70 28 14 7 6.16 2.8 1.4 0.7</resolutions><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">But after 13 days it arrives at the 5<sup>th</sup> level where before I kill the process it seed just 900MB on that level.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">This is my script<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">su -s /bin/sh apache -c "/usr/local/bin/mapcache_seed -c /usr/local/src/mapcache-1.6.1/build/mapcache.xml -t bccache -g bcgrid -z 5,6 –n 400" 2>&1> /var/www/vhosts/$SITE/scripts/cache_log.txt<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I know that in the documentation say that –n should be less or max the number of cpu in the server but is really slow if I put 2, so I tried with 100 and after 13 days that was the result so now I’m trying 400<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Is there something else I can use to speed up the seed? I’m using the SQlite cache method<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Should I use the -p (| –nprocesses: number of parallel processes that should be used to request tiles from the WMS source) Instead of the –n parameter?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-GB">Sebastiano Laini<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-GB">Web Developer<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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