Tune firewall connection tracking for nominatim

diff --git a/roles/nominatim.rb b/roles/nominatim.rb
index 5ab2429973313a24de589b16d2bd809a2586084f..e6afd469fb6593b944e1920657c81ed9ad37715a 100644 (file)
--- a/roles/nominatim.rb
+++ b/roles/nominatim.rb
@@ -54,6 +54,18 @@ default_attributes(
       :parameters => {
         "vm.swappiness" => 10
       }
+    },
+    :network_conntrack_time_wait => {
+      :comment => "Only track completed connections for 30 seconds",
+      :parameters => { 
+        "net.netfilter.nf_conntrack_tcp_timeout_time_wait" => "30"
+      }
+    },
+    :network_conntrack_max => {
+      :comment => "Increase max number of connections tracked",
+      :parameters => {
+         "net.netfilter.nf_conntrack_max" => "131072"
+      }
     }
   },
   :nominatim => {