[hadoop] WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable

hadoop 启动后,有警告信息:

WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable

首先下载hadoop-native-64-2.4.0.tar：
http://dl.bintray.com/sequenceiq/sequenceiq-bin/hadoop-native-64-2.4.0.tar
如果你是hadoop2.6的可以下载下面这个：
http://dl.bintray.com/sequenceiq/sequenceiq-bin/hadoop-native-64-2.6.0.tar

下载指定文件:

下载完以后，解压到hadoop的native目录下，覆盖原有文件即可。操作如下：

tar -x hadoop-native-64-2.4.0.tar -C  hadoop/lib/native/