diff --git a/lib/cartodb/server_options.js b/lib/cartodb/server_options.js
index c8af69d8..2a859d2e 100644
--- a/lib/cartodb/server_options.js
+++ b/lib/cartodb/server_options.js
@@ -61,7 +61,16 @@ module.exports = {
             statsInterval: rendererConfig.statsInterval
         },
         renderer: {
-            mapnik: rendererConfig.mapnik,
+            mapnik: _.defaults(rendererConfig.mapnik, {
+                geojson: {
+                    dbPoolParams: {
+                          size: 16,
+                          idleTimeout: 3000,
+                          reapInterval: 1000
+                    },
+                    clipByBox2d: false,
+                }
+            }),
             torque: rendererConfig.torque,
             http: rendererConfig.http
         },