What a stupid headline.<p>They use Alluxio (formerly named Tachyon). People who know anything about Spark will already know what that means. For everyone else it is an out of JVM memory layer that allows Spark to keep more data in memory instead of disk.<p>The key quote is that it is 100x than Spark <i>alone</i>. It isn&#x27;t instead of Spark SQL, it&#x27;s as well as.