Test skeleton for cache policies.
Test skeleton for cache policies.

mattyb149/blinkdb,sameeragarwal/blinkdb,lzshlzsh/shark,mattyb149/blinkdb,mapr/shark,sameeragarwal/blinkdb,lzshlzsh/shark,sjyk/sampleclean,sjyk/sampleclean,sameeragarwal/blinkdb,mapr/shark,alabid/blinkdb,amplab/shark,alabid/blinkdb,mattyb149/blinkdb,alabid/blinkdb,amplab/shark,lzshlzsh/shark,sjyk/sampleclean,mapr/shark,amplab/shark