[mapserver-users] Weird behavior of mapcache_seed and mapcache

[Jiří Danielka]

Hi,

 

I have a question about Mapcache. I have installed Mapcache 1.6 and
Mapserver 7.0.6. I created configuration file (You can see below this text)
and I generated tiles throught mapcache_seed. I have tiles in folder but I
have problem with it. If I send first request to Mapcache with generated
dataset(which was generated by mapcache_seed) Mapcache again execute
Mapserver and I feel big delay. It look like regeneration of tiles. If I
send same request the second time, I work ok a Mapcache don't execute
Mapserver and I get tiles very fast. What am I doing wrong ?

 

Thank you

George from Czechia

 

Configuration file, which I use it:

 

<?xml version="1.0" encoding="UTF-8"?>

 

<mapcache mode="combined_mirror">

 

    <cache name="disk" type="disk" > 

        <base>/opt/data/share/maps/mapcache/</base>

        <symlink_blank/>

    </cache>

 

    <source name="zdroj" type="wms">

        <getmap>

            <params> 

             <MAP>/opt/data/share/maps/mapserver/main.map</MAP>

              <FORMAT>image/png</FORMAT>

                <transparent>true</transparent>

                <layers>all</layers>

           </params>

        </getmap>

        <http>

            <url>http://172.17.0.1:8085/mapserver?</url>

        </http>

    </source>

    <format name="PNG_BEST" type ="PNG">

        <transparent>true</transparent>

    </format>

    <format name="jpeg_nastaveni" type ="JPEG">

        <quality>95</quality>

        <photometric>RGB</photometric>

    </format>

 

    <tileset name="mirror">

        <source>zdroj</source> 

        <cache >disk</cache>

        <grid>gridRP</grid>

        <format>PNG_BEST</format>

        <metatile>5 5</metatile> 

        <metabuffer>10</metabuffer>

    </tileset>

 

    <grid name="gridRP">

        <extent>-20037508.3427892480 -20037508.3427892480
20037508.3427892480 20037508.3427892480</extent>

        <srs>EPSG:3857</srs>

        <units>m</units>

        <size>256 256</size>

        <resolutions>156412 78206 39103 19551 9776 4888 2444 1222 610.984
305.492 152.746 76.373 38.187 19.093 9.547 4.773 2.387 1.193 0.596
0.298</resolutions>

    </grid>

 

    <service type="wms" enabled="true">

        <full_wms>error</full_wms>

        <format allow_client_override="true">PNG_BEST</format>

    </service>

    <service type="wmts" enabled="true"/>

    <service type="tms" enabled="true"/>

    <service type="kml" enabled="true"/>

    <service type="gmaps" enabled="true"/>

    <service type="ve" enabled="true"/>

 

    <errors>report</errors>

    <lock_dir>/tmp</lock_dir>

 

</mapcache>

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