Surendra Mohan has served in a few top-notch software organizations in varied roles and is currently a freelance software consultant. He has been working on various cutting-edge technologies such as Drupal, Moodle, Apache Solr, Elasticsearch, Node.js, SoapUI, Magento, and Google Search Appliance for the past 10 years. He also delivers technical talks at various community events such as Drupal meet-ups and camps. To know more about him, his write-ups, technical blogs, and many more, check out http://www.surendramohan.info/. He has authored books such as Administrating Solr, Apache Solr High Performance, and Open Source Log Analysis with Elasticsearch, published by Packt Publishing, and reviewed other technical books for Packt Publishing such as Drupal 7 Multi-sites Configuration, Matt Butcher; Drupal Search Engine Optimization, Ric Shreves; and titles on Drupal commerce, OpsView, and Elasticsearch, Drupal-related video tutorials, and many more. Additionally, he writes technical blogs and articles at http://www.sitepoint.com/. His published blogs and articles can be found at http://www.sitepoint.com/author/smohan/.