fixed monitoring issue a issue with null string in /etc/salt/grains.d/backupninja on backup server
diff --git a/metadata/service/support.yml b/metadata/service/support.yml
index 5e12c47..006b6ed 100644
--- a/metadata/service/support.yml
+++ b/metadata/service/support.yml
@@ -8,6 +8,6 @@
       heka:
         enabled: true
       sensu:
-        enabled: true
+        enabled: false
       sphinx:
         enabled: true