nadder: Decrease scheduler queue depth to improve latency

[chef.git] / roles / nadder-01.rb

diff --git a/roles/nadder-01.rb b/roles/nadder-01.rb
index 0ce74c95c65f9e0dbcd9c656088c59d266a19ab7..d596a1a6e54f849a87ea8f3befc071ce1041dad0 100644 (file)
--- a/roles/nadder-01.rb
+++ b/roles/nadder-01.rb
@@ -18,8 +18,8 @@ default_attributes(
     :hdd_tune => {
       :comment => "Tune the queue for improved performance",
       :parameters => {
-        "block/vda/queue/nr_requests" => "512",
-        "block/vdb/queue/nr_requests" => "512",
+        "block/vda/queue/nr_requests" => "64",
+        "block/vdb/queue/nr_requests" => "64",
         "block/vda/queue/scheduler" => "deadline",
         "block/vdb/queue/scheduler" => "deadline"
       }
@@ -28,6 +28,15 @@ default_attributes(
   :squid => {
     :cache_mem => "6500 MB",
     :cache_dir => "coss /store/squid/coss-01 128000 block-size=8192 max-size=262144 membufs=80"
+  },
+  :tilecache => {
+    :tile_parent => "provo.render.openstreetmap.org",
+    :tile_siblings => [
+      "nadder-02.openstreetmap.org",
+      "jakelong.openstreetmap.org",
+      "nepomuk.openstreetmap.org",
+      "lurien.openstreetmap.org"
+    ]
   }
 )