Render_list problem

General talk
1

I’m running pre-render for ajt style map

render_list -all --socket /var/run/renderd/renderd.sock -z 1 -Z 1 -n 15

I can see this in the syslog:

renderd[35121]: DEBUG: Got incoming connection, fd 7, number 1
renderd[35121]: DEBUG: Got incoming connection, fd 9, number 2
renderd[35121]: DEBUG: Got incoming connection, fd 10, number 3
renderd[35121]: DEBUG: Got incoming connection, fd 11, number 4
renderd[35121]: DEBUG: Got incoming connection, fd 12, number 5
renderd[35121]: DEBUG: Got incoming connection, fd 13, number 6
renderd[35121]: DEBUG: Got incoming connection, fd 17, number 7
renderd[35121]: DEBUG: Got incoming connection, fd 18, number 8
renderd[35121]: DEBUG: Got incoming connection, fd 19, number 9
renderd[35121]: DEBUG: Got incoming connection, fd 20, number 10
renderd[35121]: DEBUG: Got incoming connection, fd 21, number 11
renderd[35121]: DEBUG: Got incoming connection, fd 22, number 12
renderd[35121]: DEBUG: Got incoming connection, fd 23, number 13
renderd[35121]: DEBUG: Got incoming connection, fd 24, number 14
renderd[35121]: DEBUG: Got incoming connection, fd 25, number 15

But when looking on syslog and htop and even iotop it looks like the machine is doing nothing
What am I missing?

2

You’re rendering from zoom 1 to Zoom 1? Chances are you did not see anything because it was fast.

1 Like
3

As an example, this is what I run to kick off a daily “low zoom rerender”. It outputs several “render_list” requests, one per zoom level, like this:

render_list -a -z 3 -Z 3 -x 3 -X 7 -y 2 -Y 7 -n 1 -m ajt

The difference between what I’m doing and what you’re doing is specifying the style name (-m).

FWIW my renderd.conf is something like:

; BASIC AND SIMPLE CONFIGURATION:

[renderd]
stats_file=/run/renderd/renderd.stats
socketname=/run/renderd/renderd.sock
num_threads=8
tile_dir=/var/cache/renderd/tiles

[mapnik]
plugins_dir=/usr/lib/mapnik/3.1/input
font_dir=/usr/share/fonts/truetype
font_dir_recurse=true

; ADD YOUR LAYERS:

[ajt]
URI=/hot/
XML=/home/ajtown/src/openstreetmap-carto-AJT/mapnik.xml
HOST=localhost
TILESIZE=256
MAXZOOM=24