doc：http://pyhdfs.readthedocs.io/en/latest/ pip install hdfs https://hdfscli.readthedocs.io/en/l ...

部署：hive 下载: wget http://mirror.bit.edu.cn/apache/hive/hive-3.1.2/apache-hive-3.1.2-bin.tar.gz mv ...

create table toys.test (id int, x0 double, x1 double, x2 double, x3 double) row format delimited ...

找到hadoop安装目录下$HADOOP_HOME/etc/mapred-site.xml,增加以下代码 <property> <name>yarn.app.map ...