[Tile-serving] Tiles aren't rendering
Chris
cr at crnewmedia.de
Tue Apr 23 19:04:18 UTC 2019
Hi Stephen,
if tiles don't render it could be a problem between renderd and the
postgres db.
I would advise to restart renderd and look into syslog (grep renderd)
before trying to render. If you see sth. like: "map failed to load", the
reason could be db or file permissions, db names, missing shapefiles by
openstreetmap-carto not applied to the db or even a missing mapnik xml
file (or access permissions).
Also check the postgres log.
Also remember that low zooms are really slow in rendering (use
render_list for those zoom <7).
What's the size of your db on what kind of filesystem? My last planet
import had been more than 650gb on ext4.
Cheers,
Chris
Am 23.04.2019 um 20:47 schrieb Stephen D:
> Hi,
>
> My tile server is not rendering tiles. I had it working with
> Canada(imported w/o a flat file), but after dropping the database and
> re-importing the whole planet(with a flat file) it no longer works.
>
> The command I used to import was: osm2pgsql -d gis --create --slimĀ -G
> --hstore --tag-transform-script
> ~/src/openstreetmap-carto/openstreetmap-carto.lua --flat-nodes
> ~/data/flatnodes.binĀ -C 6000 --drop --number-processes 8 -S
> ~/src/openstreetmap-carto/openstreetmap-carto.style
> /home/stephen/planet-latest.osm.pbf
>
> When requesting a tile, this shows up in the log file:
>
> Apr 23 18:37:15 osm-tilemap renderd[1488]: DEBUG: Connection 0, fd 7
> closed, now 0 left
> Apr 23 18:39:21 osm-tilemap renderd[1488]: DEBUG: Got incoming
> connection, fd 7, number 1
> Apr 23 18:39:21 osm-tilemap renderd[1488]: DEBUG: Got incoming request
> with protocol version 2
> Apr 23 18:39:21 osm-tilemap renderd[1488]: DEBUG: Got command
> RenderPrio fd(7) xml(ajt), z(1), x(1), y(1), mime(image/png), options()
> Apr 23 18:39:51 osm-tilemap renderd[1488]: DEBUG: Connection 0, fd 7
> closed, now 0 left
>
> After 30 seconds it times out. No tiles appear in the cache directory,
> even after several minutes. The CPU reaches 20% per core for all
> cores, and disk usage is around 200MB/s read. Both the CPU and disk
> are used by the postgresql process.
>
> I am using apache2, mod_tile, mapnik, and renderd.
>
> Thanks,
>
> Stephen
>
>
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