ssh:Couldnotresolvehostnameguard.:Temporary

今天在通过./start-all.sh启动Hadoop集群的时候报了如下的错误

root&＃64;master:/usr/local/hadoop-2.7.2/sbin# ./start-all.sh
This script is Deprecated. Instead use start-dfs.sh and start-yarn.sh
16/06/16 17:54:32 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
Starting namenodes on [Java HotSpot(TM) Client VM warning: You have loaded library /usr/local/hadoop-2.7.2/lib/native/libhadoop.so.1.0.0 which might have disabled stack guard. The VM will try to fix the stack guard now.
It&＃39;s highly recommended that you fix the library with &＃39;execstack -c &＃39;, or link it with &＃39;-z noexecstack&＃39;.
master]
sed: -e expression #1, char 6: unknown option to &＃96;s&＃39;
HotSpot(TM): ssh: Could not resolve hostname hotspot(tm): Temporary failure in name resolution
Java: ssh: Could not resolve hostname java: Temporary failure in name resolution
You: ssh: Could not resolve hostname you: Temporary failure in name resolution
have: ssh: Could not resolve hostname have: Temporary failure in name resolution
now.: ssh: Could not resolve hostname now.: Temporary failure in name resolution
have: ssh: Could not resolve hostname have: Temporary failure in name resolution
loaded: ssh: Could not resolve hostname loaded: Temporary failure in name resolution
stack: ssh: Could not resolve hostname stack: Temporary failure in name resolution

好了去查查&＃xff0c;解决方法如下 在 /etc/profile 中添加如下信息&＃xff1a;

export HADOOP_COMMON_LIB_NATIVE_DIR&＃61;$HADOOP_HOME/lib/native
export HADOOP_OPTS&＃61;"-Djava.library.path&＃61;$HADOOP_HOME/lib"


执行 source /etc/profile 使之立即生效。