-# Update tiles from z0 to z12 for style "<%= @style %>"
-render_list \
- --all --force \
- --tile-dir=/srv/tile.openstreetmap.org/tiles \
- --socket=/var/run/renderd/renderd.sock \
- --num-threads=<%= ( node[:cpu][:total] - 2 ) / 4 %> \
- --map="<%= @style %>" \
- --max-load=70 \
- --min-zoom=0 --max-zoom=12
+# Define function to update tiles from z0 to z12 for style "<%= @style %>"
+function update_tiles
+{
+ render_old \
+ --timestamp=$(stat -c %Y "/srv/tile.openstreetmap.org/styles/<%= @style %>/project.xml") \
+ --tile-dir=/srv/tile.openstreetmap.org/tiles \
+ --socket=/var/run/renderd/renderd.sock \
+ --num-threads=<%= node[:cpu][:total] - 2 %> \
+ --map="<%= @style %>" \
+ --max-load=70 \
+ --min-zoom=0 --max-zoom=12
+}
+
+# Loop running the update command until it suceeds
+until update_tiles
+do
+ sleep 30
+done