CentOS6安装Hadoop后运行hdfs警告Unable to load native-hadoop library for your platform... using builtin-java

情景：安装hadoop后启动运行HDFS报错：WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable 其实hdfs正常运行，各节点namenode和datanode等都正常运行的。但是就是有警告，

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