title: Storing user activity in Django
body: <p>I am looking to store the activity of an user, but I am not sure where to store it. I dont think database is a option as it will be very big than. I am looking to know as to how sites like facebook, dropbox remember all the activity of an particular user. And it can't be stored in sessions as this is not session specific rather user specific.</p>
  
  <p>Please help me with your suggestion.</p>