* Add sendevent when using file caching
* Create clear_cache.lua
FS receives a command via curl to call this script which deletes the single cache entry or flushes the entire cache.
* Create file_cache.lua
This scripts monitors for custom events. When an event is processed it will send out a command via curl to other FS servers telling them to clear their cache.
This must be called from conf/autoload_configs/lua.conf.xml
<param name="startup-script" value="app/server/resources/memcache.lua"/>
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