swappiness to 1 for couchbase nodes

couchbase/defaults/main.yml

@@ -46,6 +46,8 @@ couchbase_backup_dest_dir: /var/cache
 couchbase_backup_command: /opt/couchbase/bin/cbbackup
 couchbase_backup_type: full
 
+couchbase_swappiness: 1
+
 couchbase_ganglia_plugin_enabled: True
 #couchbase_ganglia_url_username:
 #couchbase_ganglia_url_password:

couchbase/tasks/main.yml

@@ -1,5 +1,6 @@
 ---
 - include: couchbase.yml
+- include: swappiness.yml
 - include: ganglia-plugin.yml
   when: ganglia_enabled
 

couchbase/tasks/swappiness.yml

@@ -0,0 +1,6 @@
+---
+
+- name: couchbase swappiness
+  sysctl: name=vm.swappiness value={{ couchbase_swappiness }} state=present reload=yes
+  tags:
+    - couchbase_swap