WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
解决方案是在文件hadoop-env.sh中增加：
export HADOOP_OPTS="-Djava.library.path=${HADOOP_HOME}/lib/native"
原文：https://www.cnblogs.com/ggzhangxiaochao/p/9216916.html