这个waring 信息是可以忽略的。下面是解决方案
在hadoop-env.sh中添加
export HADOOP_OPTS="$HADOOP_OPTS -Djava.library.path=$HADOOP_HOME/lib/native"
export HADOOP_COMMON_LIB_NATIVE_DIR="/usr/local/hadoop/lib/native/"
hadoop WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
原文：http://www.cnblogs.com/Jesse-Li/p/7236060.html
