title: Extracting data from documents stored in HDFS to index in Elasticsearch
body: <p>I have a HDFS archive to store variety of documents like <em>pdf,ms word file,ppt,csv</em> etc. I would like to build a platform using elasticsearch to search the file or text contents. I know I can use the <strong><em>es-hadoop</em></strong> plugin to index data to from HDFS to ES. I want to know the best ways that I can extract out the textual data from the docs stored in HDFS and index the same. </p>
  
  <p>Any help would be appreciated.</p>