Note that, when using Kosmtik, I was able to see the extract's name from as low as zoom 4. So even when browsing at the extract's location, it won't render correctly. All else, regardless of the zoom or location, renders to "blank". I suppose it only uses the planet/world shapefile, which was downloaded with the style. Interestingly, zoom 1 works (the one with 4 tiles). This means that accessing would have all tiles rendered on my server.
Then, I've set up redirect rules from to using switcheroo, as described here. I've set up TileStache with Mapnik as the provider. Maybe I am generating tiles at the wrong location I've installed Kosmtik, and it worked fine! I was able to browse through the extract, inspect data, zoom in and out on all levels. Maybe some polygon/shape (the ocean's?) is covering another one. Maybe the generated style is invalid somehow. Here's what I've tried to fix this problem: Things I've tried Same applies for incorrect DB information.Īnd here's the problem: every tile rendered by Mapnik is "blank" (blue-ish background, which is the defined background for OSM). I sort of unit-tested these changes: incorrect directories for shapefiles and symbols will raise an error when Mapnik tries to load the style. Replace relative directory symbols/.svg to /full/path/symbols/.svg.Replace relative directory data/.shp to /full/path/data/.shp.Remaining connection info is grabbed from ~/.pgpass. Add the Postgres username (Parameter user on Mapnik's XML).I've made the following changes to the result: I have mapnik and python-mapnik 3.x, as well as carto 0.18.2.įrom the OSM's project.mml, I've generated my own project.xml using carto. The next step is rendering the tiles, and that's where I'm having trouble. I was able to view and query with all points, polygons, lines and roads. I verified the extract data is correctly loaded on the database by using QGIS. The hstore, style and tag-transform-script arguments are required for the proper utilization of OSM's style, as described here.Īs described on the openstreetmap-carto installation, I've also added custom indexes and downloaded the required shapefiles and fonts (except for the emoji ones). Osm2pgsql -G U -d -C 1000 -W -hstore -style openstreetmap-carto.style -tag-transform-script a
![mapproxy apache mapproxy apache](https://image.slidesharecdn.com/foss4g2011-tbonfort-110927033929-phpapp02/95/modgeocache-mapcache-a-fast-tiling-solution-for-the-apache-web-server-6-728.jpg)
In order to import the Sao Paulo extract, I use I've also added the postgis_topology and hstore extensions, which will be used later. I'm using 9.6 for the former, 2.3 for the latter. PostgreSQL and PostGIS are properly installed.
MAPPROXY APACHE FULL
Since the full planet file is huge, I'm currently using a extract of Sao Paulo, which is good/small enough for testing.īefore I reach to the problem I'm having, I'll guide through the steps I took so far: What worked Kosmtik - Map GUI for development/debugging.In order to import and style OSM data, I'm using Postgres + Postgis - For storing, transforming and processing GIS data.My goal is to serve planet-wide maps with OSM data on my own servers. Since these requests are typically made from the same client you should enable sticky sessions in you load balancer when you offer tiled services (WMTS/TMS/KML).I'm new to the fascinating GIS world, and I've been researching the whole topic for the past few days. With this setup the locking will only be effective when parallel requests for tiles of the same meta tile go to the same MapProxy instance. You should configure MapProxy to write all lock files on a local filesystem to prevent this. Since file locking doesn’t work well on most network filesystems you are likely to get errors when MapProxy writes these files on network filesystems. The other processes will wait till the the first process releases the lock and will then use the new created tile. With locking, only the first process will get the lock and request the meta tile. Without locking MapProxy would request the meta tile for each request. This would typically happen when two or more requests for missing tiles are processed in parallel by MapProxy and these tiles belong to the same meta tile.
MapProxy uses file locks to prevent that multiple processes will request the same image twice from a source. You can easily run multiple MapProxy instances in parallel and use a load balancer to distribute requests across all instances, but there are a few things to consider when the instances share the same tile cache with NFS or other network filesystems.