I set up mod_tile together with renderd. Rendering the map works well. When
manually opening the map it renders non existing tiles fast an seamless. I
already prerenderd my map from Z0 to Z17 (actually only half of Z17).
When going to new spots on my map where the tiles are not prerenderd the tiles
get generated without any problem.
When trying to continue to render the whole Z17 (or Z18) i get the following
error in the renderd.log:
```
** (process:1911): ERROR **: 14:25:34.040: failed to render TILE default 18
134760-134767 92840-92847
** (process:1911): ERROR **: 14:25:34.044: reason: Postgis Plugin: bad
connection
** (process:1911): ERROR **: 14:25:46.972: failed to render TILE default 17
70344-70351 45848-45855
** (process:1911): ERROR **: 14:25:46.972: reason: Postgis Plugin: bad
connection
** (process:1911): ERROR **: 14:25:46.972: failed to render TILE default 18
134760-134767 93080-93087
** (process:1911): ERROR **: 14:25:46.973: reason: Postgis Plugin: bad
connection
** (process:1911): ERROR **: 14:25:46.973: failed to render TILE default 18
134760-134767 93112-93119
** (process:1911): ERROR **: 14:25:46.972: failed to render TILE default 18
134760-134767 93000-93007
** (process:1911): ERROR **: 14:25:46.973: reason: Postgis Plugin: bad
connection
** (process:1911): ERROR **: 14:25:46.973: reason: Postgis Plugin: bad
connection
** (process:1911): ERROR **: 14:25:46.976: failed to render TILE default 18
134760-134767 93032-93039
** (process:1911): ERROR **: 14:25:46.976: reason: Postgis Plugin: bad
connection
```
since the rendering works when i manually go to new spots on the map i really
dont know what the error is.
here are my configurations:
renderd.conf:
```
[renderd]
pid_file=/var/run/renderd/renderd.pid
stats_file=/var/run/renderd/renderd.stats
socketname=/var/run/renderd/renderd.sock
num_threads=32
tile_dir=/usr/local/renderd/cache
[mapnik]
plugins_dir=/usr/lib/mapnik/3.1/input
font_dir=/usr/share/fonts
font_dir_recurse=true
[default]
URI=/tile/
XML=/usr/local/mapnik/openstreetmap-carto/CARTO_DE_AT_CH.xml
HOST=localhost
TILEDIR=/usr/local/renderd/cache
[topo]
URI=/topo/
XML=/usr/local/mapnik/OpenTopoMap/mapnik/opentopomap.xml
HOST=localhost
TILEDIR=/usr/local/renderd/cache
```
the start of the .mml file looks like this:
```
# Various parts to be included later on
_parts:
srid: &srid "3857"
srs: &srs "+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0
+y_0=0.0 +k=1.0 +units=m +nadgrids=@null +wktext +no_defs +over"
world: &world
- -180
- -85.05112877980659
- 180
- 85.05112877980659
dach: &dach
- 562163
- 5733998
- 1975921
- 7424221
# Extents are used for tilemill, and don't actually make it to the generated
XML
extents: &extents
extent: *dach
srs-name: *srid
srs: *srs
osm2pgsql: &osm2pgsql
type: "postgis"
geometry_field: "way"
key_field: ""
estimate_extend: "false"
srid: *srid
host: "POSTGIS"
port: "5432"
extent: *dach
user: "gis"
dbname: "DE_AT_CH_20240911"
max_size: 100
max_async_connection: 4
```
maybe if you have any idea what i did wrong... i would be very happy since I
found nothing similar in any other issue (or I am just a bad googler ;) )
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