配置hadoop2.2.0的时候出现错误：could not resolve hostname HotSpot(TM): Name or service not know_could not resolve hostname hadoop202: name or serv-优快云博客

本文链接：https://blog.youkuaiyun.com/sunflower_cao/article/details/38513839

在配置Hadoop2.2.0时遇到'could not resolve hostname HotSpot(TM): Name or service not known'的错误。通过在~/.bash_profile中添加环境变量设置，即export HADOOP_COMMON_LIB_NATIVE_DIR=$HADOOP_HOME/lib/native和export HADOOP_OPTS="-Djava.library.path=$HADOOP_HOME/lib"，可以成功解决启动问题。

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错误如下：

<span style="font-size:18px;">[hadoop@cluster1 hadoop-2.2.0]$ sbin/stop-all.sh 
This script is Deprecated. Instead use stop-dfs.sh and stop-yarn.sh
14/08/10 07:07:57 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
Stopping namenodes on [Java HotSpot(TM) 64-Bit Server VM warning: You have loaded library /home/hadoop/hadoop-2.2.0/lib/native/libhadoop.so.1.0.0 which might have disabled stack guard. The VM will try to fix the stack guard now.
It's highly recommended that you fix the library with 'execstack -c <libfile>', or link it with '-z noexecstack'.
cluster1]
sed: -e expression #1, char 6: unknown option to `s'
-c: Unknown cipher type 'cd'
^Ccluster1: stopping namenode
cluster1: stopping datanode
VM: ssh: Could not resolve hostname VM: Name or service not known
stack: ssh: Could not resolve hostname stack: Name or service not known
warning:: ssh: Could not resolve hostname warning:: Name or service not known
will: ssh: Could not resolve hostname will: Name or service not known
which: ssh: Could not resolve hostname which: Name or service not known
fix: ssh: Could not resolve hostname fix: Name or service not known
disabled: ssh: Could not resolve hostname disabled: Name or service no