From: Tom Hughes <tom@compton.nu>
Date: Tue, 23 Dec 2014 08:40:12 +0000 (+0000)
Subject: Tune firewall connection tracking for nominatim
X-Git-Url: https://git.openstreetmap.org/chef.git/commitdiff_plain/2381f5a670ed0387401ebe94dbfbda983cc76011?ds=inline

Tune firewall connection tracking for nominatim
---

diff --git a/roles/nominatim.rb b/roles/nominatim.rb
index 5ab242997..e6afd469f 100644
--- 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 => {