From research to practice: experiences engineering a production metadata database for a scale out file system. - Charles Johnson; Kimberly Keeton; Charles B. Morrey III; Craig A. N. Soules; Alistair C. Veitch; Stephen Bacon; Oskar Batuner; Marcelo Condotta; Hamilton Coutinho; Patrick J. Doyle; Rafael Eichelberger; Hugo Kiehl; et al. (FAST, 2014)