(I believe that students are no strangers to Hadoop. This course builds a more mature Hadoop distributed file architecture system based on more mature ecosystem technologies. Hadoop is built based on the JAVA language, which is one of the reasons why JAVA has more advantages in big data development. Hadoop can harness the power of clusters for high-speed computing and storage. One of the components of Hadoop is HDFS. HDFS has the characteristics of high fault tolerance and is especially suitable for the application of very large clusters. The course arrangement also includes the teaching of HDFS core technology, from advanced teaching to actual combat cases, which is very suitable for students to recharge their learning.)