Hadoop WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using b

Hadoop执行： hadoop fs -ls /

错误：21/12/01 19:10:59 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable

解决办法：

# hadoop 安装目录
> cd hadoop-2.2.0

> vi etc/hadoop/log4j.properties

#  末尾行添加 
#  log4j.logger.org.apache.hadoop.util.NativeCodeLoader=ERROR

> source etc/hadoop/log4j.properties