Hot on the heels of Facebook’s release of its Presto distributed SQL query engine to the open source communityearlier this month, the social networking giant was back at it today—this time open sourcing RocksDB, an embedded, high-performance, single-node database engine.
“Every time one of the 1.2 billion people who use Facebook visits the site, they see a unique, dynamically generated home page,” says Dhruba Borthakur, engineer on Facebook’s database engineering team. “There are several applications powering this experience—and others across the site—that require global, real-time data fetching.”