[mapserver-users] Updating MapCache on feature edits

Eichner, Andreas - SID Andreas.Eichner at sid.sachsen.de
Tue Oct 4 06:44:27 PDT 2016


Seth,

you can use OGR to retrieve the updated features and give it to mapcache_seed.
See http://mapserver.org/mapcache/seed.html#optional-commandline-options-when-using-ogr-geos .

The ows_updatesequence metadata signals changes in the metadata returned by a GetCapabilities request, i.e. when adding/removing layers, descriptions and the like.

HTH
 
> -----Ursprüngliche Nachricht-----
> Von: mapserver-users [mailto:mapserver-users-bounces at lists.osgeo.org] Im
> Auftrag von Seth G
> Gesendet: Sonntag, 2. Oktober 2016 15:23
> An: mapserver-users at lists.osgeo.org
> Betreff: [mapserver-users] Updating MapCache on feature edits
> 
> Hi list,
> 
> I have a few MapServer layers based on data that can be edited at any
> time. In practice this usually happens in short bursts every month or so.
> The remaining time the layers would benefit greatly from using a tile
> cache.
> 
> Are there any suggested methods on how to automatically
> purge/delete/change the cache when an edit happens when using MapServer
> and Mapcache?
> 
> I see that GeoWebCache/Geoserver allows a GeoRSS feed to invalidate
> features
> http://geowebcache.org/docs/current/configuration/layers/georss.html
> 
> 
> The ows_updatesequence metadata parameter for a WMS layer looks like it
> could be used somehow (see http://mapserver.org/ogc/wms_server.html#web-
> object-metadata), but it seems that custom dimensions need to be requested
> by the client, and any Mapcache configurations would need Apache to be
> restarted.
> 
> Any best practices, or solutions appreciated,
> 
> Seth
> 
> 
> --
> web: http://geographika.co.uk <http://geographika.co.uk>
> twitter: @geographika
> 
> 



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