Consider the following. From my heroku console:
>> Rails.cache.stats
=> {"server_id"=>{"evictions"=>"0", "curr_items"=>"2064", "total_items"=>"18793", "bytes"=>"7674501", ...
>> Rails.cache.clear
=> [true]
>> Rails.cache.stats
=> {"server_id"=>{"evictions"=>"0", "curr_items"=>"2064", "total_items"=>"18793", "bytes"=>"7674501",
Super weird — how can I clear my cache!!
Similar Issue ? : https://stackoverflow.com/q/7122513/192791
If you connect directly to the Dalli/memcahced client through the console and flush_all the cache clears.
i.e.
NOTE: the stats take a while to update, but the cache will definitely clear.