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

[hadoop@hadoop000 hadoop]$ ldd --version
ldd (GNU libc) 2.12
Copyright (C) 2010 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
由 Roland McGrath 和 Ulrich Drepper 编写。

原来系统预装的glibc库是2.12版本，而hadoop期望是2.14版本，所以打印警告信息。

解决办法如下：

在hadoop的安装目录下（例如：/home/hadoop/app/hadoop-2.6.0-cdh5.7.0/etc/hadoop）执行以下命令：

log4j.logger.org.apache.hadoop.util.NativeCodeLoader=ERROR