spark-1.2.0文档apiSparkOverviewApacheSparkisafastandgeneral-purposeclustercomputingsystem.Itprovideshigh-levelAPIsinJava,ScalaandPython,andanoptimizedenginethatsupportsgeneralexecutiongraphs.Italsosupportsarichsetofhigher-leveltoolsincludingSparkSQLforSQLandstructureddataprocessing,ML