title: distributed data reader across multiple machines
body: <p>is there any distributed data reader for TensorFlow? 
  if not, what is the suggested way for handling big datasets over multiple machines?</p>
  
  <p>The distributed inception example <a href="https://github.com/tensorflow/models/tree/master/inception" rel="nofollow">here</a> pre-segments the data over multiple machines and then each workers grabs its subset of data from available subsets. Is this the only supported method?</p>
  
  <p>Also it seems that some of the data readers described in <a href="https://www.tensorflow.org/versions/r0.9/how_tos/reading_data/index.html" rel="nofollow">here</a> are thread safe but I couldn't find any distributed solution. </p>