[mapserver-users] MapCache - failed to remove lockfile error

[Travis Kirstine]

Thomas,

My command is below, I'm using a disk cache, my config file is below.
I'm using a local copy of MapServer for the source image generation


./geocache_seed -c ../geocache.xml -t ms_tileset_8 -z 0,21 -e
-8895580.772,5411569.158,-8797157.196,5538966.276 -n 6


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

   <metadata>
      <title>geocache service esx11</title>
      <abstract>mod-geocache service</abstract>
      <!-- url>http://mysuperhost/proxy/to/geocache</url -->
   </metadata>

         <grid name="googlemaps_grid">
            <metadata>
               <title>GoogleMapsCompatible</title>
               <WellKnownScaleSet>urn:ogc:def:wkss:OGC:1.0:GoogleMapsCompatible</WellKnownScaleSet>
            </metadata>
            <extent>-20037508.3427892480 -20037508.3427892480
20037508.3427892480 20037508.3427892480</extent>
            <srs>EPSG:3857</srs>
            <srsalias>EPSG:900913</srsalias>
            <units>m</units>
            <size>256 256</size>
            <resolutions>156543.0339280410 78271.51696402048
39135.75848201023 19567.87924100512 9783.939620502561
4891.969810251280 2445.984905125640 1222.992452562820
611.4962262814100 305.7481131407048 152.8740565703525
76.43702828517624 38.21851414258813 19.10925707129406
9.554628535647032 4.777314267823516 2.388657133911758
1.194328566955879 0.5971642834779395 0.29858214173896975
0.149291070869484875 0.0746455354347424375</resolutions>
         </grid>

   <cache name="disk" type="disk">
      <base>/var/mod-geocache/caches</base>
      <symlink_blank/>
   </cache>

   <format name="PNGQ_FAST" type ="PNG">
      <compression>fast</compression> <!-- fast or best -->
      <colors>256</colors>
   </format>
   <format name="myjpeg" type ="JPEG">
      <quality>75</quality>
   </format>
   <format name="PNG_BEST" type ="PNG">
      <compression>best</compression>
   </format>
   <format name="mixed" type="MIXED">
      <transparent>PNG_BEST</transparent>
      <opaque>JPEG</opaque>
   </format>

   <source name="ms_wms" type="wms">
      <getmap>
         <params>
            <FORMAT>image/png</FORMAT>
            <LAYERS>YORK2009</LAYERS>
            <TRANSPARENT>true</TRANSPARENT>
         </params>
      </getmap>
      <http>
         <url>http://localhost.jdbarnes.com/cgi-bin/ms_wms</url>
      </http>
   </source>

   <tileset name="ms_tileset_8">
      <source>ms_wms</source>
      <cache>disk</cache>
      <!--grid restricted_extent="-79.8205259 43.7179074 -79.1161194
44.4110187">WGS84</grid-->
      <grid>googlemaps_grid</grid>
      <format>mixed</format>
      <metatile>8 8</metatile>
      <metabuffer>0</metabuffer>
   </tileset>

   <default_format>JPEG</default_format>

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

   <errors>report</errors>

   <lock_dir>/var/mod-geocache/caches</lock_dir>

</geocache>

On 6 October 2011 10:31, thomas bonfort <thomas.bonfort at gmail.com> wrote:
> what seed command were you using, and what kind of cache ?
>
> On Thu, Oct 6, 2011 at 15:52, Travis Kirstine <traviskirstine at gmail.com> wrote:
>> Thanks Thomas,
>>
>> The complete error message is below.  Do you have any idea what would
>> cause this error - why would mapcache fail to create or delete the
>> lockfile.
>>
>>
>>
>> seeding tile 583296 1337304 21failed to remove lockfile
>> /var/mod-geocache/cachesseeding tile 583304 1337296 21failed to remove
>> lockfile /var/mod-geocache/caches/_gc_lock-21-167156-72919-ms_tileset_8:
>> No such file or directoryfailed to remove lockfile
>> /var/mod-geocache/caches/_gc_lock-21-167157-72919-ms_tileset_8: No
>> such file or directoryfailed to remove lockfile
>> /var/mod-geocache/caches/_gc_lock-20-83579-36459-ms_tileset_8: No such
>> file or directoryfailed to remove lockfile
>> /var/mod-geocache/caches/_gc_lock-21-167156-72918-ms_tileset_8: No
>> such file or directoryfailed to remove lockfile
>> /var/mod-geocache/caches/_gc_lock-21-167159-72918-ms_tileset_8: No
>> such file or directoryfailed to remove lockfile
>> /var/mod-geocache/caches/_gc_lock-21-167158-72918-ms_tileset_8: No
>> such file or directoryfailed to remove lockfile
>> /var/mod-geocache/caches/_gc_lock-21-167159-72919-ms_tileset_8: No
>> such file or directoryfailed to remove lockfile
>> /var/mod-geocache/caches/_gc_lock-18-20895-9114-ms_tileset_8: No such
>> file or directoryfailed to remove lockfile
>> /var/mod-geocache/caches/_gc_lock-21-167158-72919-ms_tileset_8: No
>> such file or directory
>>
>>
>> Regards
>>
>>
>> On 6 October 2011 09:11, thomas bonfort <thomas.bonfort at gmail.com> wrote:
>>> The log message should be more explicit, and contain the reason of the
>>> unsuccessful removal. In any case, looking at the code, this error
>>> will have interrupted the seeding process.
>>>
>>> regards,
>>> thomas
>>>
>>> On Thu, Oct 6, 2011 at 15:03, Travis Kirstine <traviskirstine at gmail.com> wrote:
>>>> Hi All,
>>>> I hope this is the right spot to post MapCache questions.  I had
>>>> seeded a large area and receive the error "failed to remove lockfile".
>>>>  It appears that this error(s) happens at the end of the seeding but
>>>> it is hard tell as the process has been running for a few days.  Does
>>>> this error kill the seeder process or is it simply a warning?
>>>>
>>>> Regards
>>>> _______________________________________________
>>>> mapserver-users mailing list
>>>> mapserver-users at lists.osgeo.org
>>>> http://lists.osgeo.org/mailman/listinfo/mapserver-users
>>>>
>>>
>>
>