Let's avoid OOM's due to swappiness=0.

analytically · analytically · commit 0777c4d62eda · 2014-04-29T06:02:05.000+01:00
diff --git a/roles/common/defaults/main.yml b/roles/common/defaults/main.yml
@@ -1,7 +1,7 @@
 ---
 
-# Kernel swappines. Using the value 0 in order to avoid swapping, since the servers should have plenty of memory.
-kernel_swappiness: 0
+# Kernel swappiness. Using the value 1 in order to avoid swapping but avoid OOMs, since the servers should have plenty of memory.
+kernel_swappiness: 1
 
 # Open file limits.
 limits_nofile_hard: 65536
