title: Use large dataset in Tensorflow
body: <p>I would like to train a CNN with a large dataset. Currently I load all data into tf.constant and then loop through it with a small Batch size in tf.Session(). That works fine for a small fraction of the dataset, but when I increase the input size I get the error:</p>
  
  <pre><code>ValueError: Cannot create a tensor proto whose content is larger than 2GB.
  </code></pre>
  
  <p>How can I avoid that?</p>