HDFS常用端口及参数释义

hdfs 常用端口和 hdfs-default配置文件参数的意义:
https://www.cnblogs.com/duanxz/p/3799467.html

Hadoop 2.x常用端口及查看方法:
https://www.cnblogs.com/jancco/p/4447756.html

阿里云搭建hadoop集群服务器，内网、外网访问问题：
https://www.cnblogs.com/ya-qiang/p/10076424.html

java客户端无法上传文件到hdfs：
https://cloud.tencent.com/developer/article/1497197

Java api 远程访问 HDFS HA 通用写法总结:
https://cloud.tencent.com/developer/article/1761584