Because Google is the originator of big data. When many people mention big data, they will inevitably think of Google's "Troika" (also known as Google's three treasures): GFS, MapReduce, BigTable. The so-called three papers set the stage for big data, inspired the arrival of the open source era of big data technology, and made Hadoop a brilliant decade. Especially in recent years, the development of big data technology, whether it is the iteration of technology or the prosperity of ecosystem, is far beyond people's imagination. From Spark surpassing Hadoop to bravely climbing the peak, Flink emerged to challenge Spark to become a dazzling star in the field of big data processing. Now Google is determined to dominate the world with Apache Beam. The development of big data open source technology can be described as indomitable, ups and downs, magnificent, like a continuous brilliant picture.