title: Why not use MySQL like memcached?
body: <p>For the same reason it makes sense to use both NoSQL and RDBMSs in one application, It makes sense to me to have an RDBMS cache besides NoSQL cache.</p>
  
  <p>I was thinking about using a MySQL server with all tables using the memory engine.</p>
  
  <p>Is there any caveat to this approach?</p>
  
  <p>Just to clarify, I am suggesting here to use a MySQL server for caching purposes only, not for the actual data storage of my application.</p>