title: Docker Commit takes a lot of time
body: <p>I am pursuing the following course :
  <a href="https://classroom.udacity.com/courses/ud730/lessons/6452084188/concepts/65798813760923" rel="nofollow">https://classroom.udacity.com/courses/ud730/lessons/6452084188/concepts/65798813760923</a>
  I have setup docker and installed TenorFlow
  I have created a container and downloaded notMnist images
  when i commit this, docker is taking a lot of time and not commiting
  Please resolve
  Edit : Please note it is running from hours. </p>