Only reserve one CPU for other tasks on render servers

[chef.git] / cookbooks / tile / templates / default / render-lowzoom.erb

diff --git a/cookbooks/tile/templates/default/render-lowzoom.erb b/cookbooks/tile/templates/default/render-lowzoom.erb
index a87dc38b51c408b2ab89ff55eb91663bc356830a..390244a62f4be4472ce5bdf61497cad05eb85125 100644 (file)
--- a/cookbooks/tile/templates/default/render-lowzoom.erb
+++ b/cookbooks/tile/templates/default/render-lowzoom.erb
@@ -2,23 +2,31 @@
 
 # DO NOT EDIT - This file is being maintained by Chef
 
-echo $$ > /var/run/render-lowzoom.pid
-<% node[:tile][:styles].each do |name,details| -%>
+# Send output to the log
+exec > /var/log/tile/render-lowzoom.log 2>&1
 
-project="/srv/tile.openstreetmap.org/styles/<%= name %>/project.mml"
+# Get current time
+timestamp=$(date +%s)
+<% node[:tile][:styles].each_key do |style| -%>
 
-render_old \
-  --config=/etc/renderd.conf \
-  --tile-dir=/srv/tile.openstreetmap.org/tiles \
-  --socket=/var/run/renderd/renderd.sock \
-  --num-threads=<%= ( node[:cpu][:total] - 2 ) / 4 %> \
-  --map="<%= name %>" \
-  --timestamp=$(stat --printf=%Y ${project}) \
-  --min-zoom=0 --max-zoom=10
+# Define function to update tiles from z0 to z12 for style "<%= style %>"
+function update_<%= style %>
+{
+  render_old \
+    --timestamp=${timestamp} \
+    --tile-dir=/srv/tile.openstreetmap.org/tiles \
+    --socket=/var/run/renderd/renderd.sock \
+    --num-threads=<%= node[:cpu][:total] - 1 %> \
+    --map="<%= style %>" \
+    --max-load=70 \
+    --min-zoom=0 --max-zoom=12
+}
 
-touch --reference="$project" "/srv/tile.openstreetmap.org/tiles/<%= name %>/planet-import-complete"
+# Loop running the update command until it suceeds
+until update_<%= style %>
+do
+  sleep 30
+done
 <% end -%>
 
-rm -f /var/run/render-lowzoom.pid
-
 exit 0