jakelong, nepomuk: Decrease scheduler queue depth to improve latency

[chef.git] / roles / nepomuk.rb

diff --git a/roles/nepomuk.rb b/roles/nepomuk.rb
index f0bf039cf219666825bac4edf670365ef01c0df6..3c7d3ccf9340c88ad8a58c0f2e3329a50ac9c7c5 100644 (file)
--- a/roles/nepomuk.rb
+++ b/roles/nepomuk.rb
@@ -30,13 +30,18 @@ default_attributes(
     :hdd_tune => {
       :comment => "Tune the queue for improved performance",
       :parameters => {
-        "block/vda/queue/nr_requests" => "512",
-       "block/vda/queue/scheduler" => "noop"
+        "block/vda/queue/nr_requests" => "64",
+        "block/vda/queue/scheduler" => "deadline"
       }
     }
   },
   :tilecache => {
-    :tile_parent => "lyon.render.openstreetmap.org"
+    :tile_parent => "lyon.render.openstreetmap.org",
+    :tile_siblings => [
+      "trogdor.openstreetmap.org",
+      "lurien.openstreetmap.org",
+      "tabaluga.openstreetmap.org"
+    ]
   }
 )