Force Enable TCP MTU probing @ UCL

[chef.git] / roles / base.rb

diff --git a/roles/base.rb b/roles/base.rb
index d680fddb110e442b3043d208d6b83e0cb21cebb1..23b5e4e1a869fe42b3bbe2be3dd324415a42f9e8 100644 (file)
--- a/roles/base.rb
+++ b/roles/base.rb
@@ -10,13 +10,10 @@ default_attributes(
       :jburgess => { :status => :administrator }
     }
   },
-  :apt => {
-    :sources => ["openstreetmap"]
-  },
   :munin => {
     :plugins => {
-      :ntp_offset => {
-        :offset => { :warning => "100", :critical => "250" }
+      :chrony => {
+        :systime => { :warning => "100", :critical => "250" }
       }
     }
   },
@@ -69,18 +66,17 @@ default_attributes(
       }
     },
     :default_qdisc => {
-      :comment => "Use pfifo_fast as the default queuing discipline",
+      :comment => "Use fq as the default queuing discipline and cubic for congestion control",
       :parameters => {
-        "net.core.default_qdisc" => "pfifo_fast"
+        "net.core.default_qdisc" => "fq",
+        "net.ipv4.tcp_congestion_control" => "cubic"
       }
-    }
-  },
-  :sysfs => {
-    :cpufreq_ondemand => {
-      :comment => "Tune the ondemand CPU frequency governor",
+    },
+    :tune_cpu_scheduler => {
+      :comment => "Tune CPU scheduler for server scheduling",
       :parameters => {
-        "devices/system/cpu/cpufreq/ondemand/up_threshold" => "25",
-        "devices/system/cpu/cpufreq/ondemand/sampling_down_factor" => "100"
+        "kernel.sched_migration_cost_ns" => 50000000,
+        "kernel.sched_autogroup_enabled" => 0
       }
     }
   }
@@ -92,7 +88,7 @@ run_list(
   "recipe[chef]",
   "recipe[devices]",
   "recipe[hardware]",
-  "recipe[munin]",
+  "recipe[munin::plugins]",
   "recipe[networking]",
   "recipe[exim]",
   "recipe[ntp]",