title: What are the data catalog option available in open source
body: <p>I would like to know which is the best data catalog available which serves the following requirements.</p>
  
  <ul>
  <li>Open source</li>
  <li>Highly available behind load balancer</li>
  <li>Describes the dataset</li>
  <li>Can describes the data inside the datasets, Ability to have option to describe the fields inside the data</li>
  <li>Data set searchable</li>
  </ul>
  
  <p>I looked at ckan and was really impressed but it did not offer describing fields inside the datasets</p>
  
  <p>Is there any other good tool for the same</p>