Apache hadoop goes realtime at Facebook. - Dhruba Borthakur; Jonathan Gray; Joydeep Sen Sarma; Kannan Muthukkaruppan; Nicolas Spiegelberg; Hairong Kuang; Karthik Ranganathan; Dmytro Molkov; Aravind Menon; Samuel Rash; Rodrigo Schmidt; Amitanand S. Aiyer (SIGMOD Conference, 2011)