--- /dev/null
+---
+layout: default
+title: Message detail for PLMC12
+toc: false
+---
+
+Detail for Marionette Collective message PLMC12
+===========================================
+
+Example Message
+---------------
+
+ Cache hit on 'ddl' key 'agent/nrpe'
+
+Additional Information
+----------------------
+
+MCollective has an internal Cache used to speed up operations like parsing of DDL files. The cache is also usable from the agents and other plugins you write.
+
+Each entry in the cache has an associated TTL or maximum life time, once the maximum time on an item is reached it is considered expired.
+
+This log line indicates that a request for a cache entry was made, the entry had not yet expired and so the cached data is being returned.
+
+It does not indicate a problem, it's just a debugging aid