WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-
问题：
HDFS Shell命令报错：WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform… using builtin-java classes where applicable
解决方案
在hadoop安装目录下/etc/hadoop/hadoop-env.sh 文件下最后面添加下方配置：
export HADOOP_OPTS="-Djava.library.path=${HADOOP_HOME}/lib/native"