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 e31a0aa9a7d7c3c99aae6b6f115ea17d871fe8c1..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"
       }
@@ -30,7 +30,13 @@ default_attributes(
     :cache_dir => "coss /store/squid/coss-01 128000 block-size=8192 max-size=262144 membufs=80"
   },
   :tilecache => {
-    :tile_parent => "orm.openstreetmap.org"
+    :tile_parent => "provo.render.openstreetmap.org",
+    :tile_siblings => [
+      "nadder-02.openstreetmap.org",
+      "jakelong.openstreetmap.org",
+      "nepomuk.openstreetmap.org",
+      "lurien.openstreetmap.org"
+    ]
   }
 )