Spark最好的书之一;第1章从Hadoop到Spark1.1Hadoop一一大数据时代的火种··1.1.1大数据的由来1.1.2Google解决大数据计算问题的方法……................…...........51.1.3Hadoop的由来与发展……….........................................….101.2Hadoop的局限性·················…….........….........................………121.2.1Hadoop运行机制…….....….........…............