guard.: ssh: Could not resolve hostname guard.: Name or service not known to: ss

hadoop 安装的时候，报错信息

guard.: ssh: Could not resolve hostname guard.: Name or service not known
to: ssh: Could not resolve hostname to: Name or service not known
have: ssh: Could not resolve hostname have: Name or service not known
HotSpot(TM): ssh: Could not resolve hostname hotspot(tm): Name or service not known
will: ssh: Could not resolve hostname will: 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 not known
You: ssh: Could not resolve hostname you: Name or service not known
The: ssh: Could not resolve hostname the: Name or service not known
library: ssh: Could not resolve hostname library: Name or service not known
VM: ssh: Could not resolve hostname vm: Name or service not known
Java: ssh: Could not resolve hostname java: Name or service not known
64-Bit: ssh: Could not resolve hostname 64-bit: Name or service not known
that: ssh: Could not resolve hostname that: Name or service not known
guard: ssh: Could not resolve hostname guard: Name or service not known
highly: ssh: Could not resolve hostname highly: Name or service not known
recommended: ssh: Could not resolve hostname recommended: Name or service not known
Server: ssh: Could not resolve hostname server: Name or service not known
stack: ssh: Could not resolve hostname stack: Name or service not known
it: ssh: Could not resolve hostname it: Name or service not known
have: ssh: Could not resolve hostname have: Name or service not known
It's: ssh: Could not resolve hostname it's: Name or service not known
warning:: ssh: Could not resolve hostname warning:: Name or service not known

主要是在环境变量中没有加入

export HADOOP_COMMON_LIB_NATIVE_DIR=$HADOOP_HOME/lib/native export HADOOP_OPTS="-Djava.library.path=$HADOOP_HOME/lib"
只要在~/.bash_profile里边加入如下内容 然后启动就没有问题了

export HADOOP_COMMON_LIB_NATIVE_DIR=$HADOOP_HOME/lib/native
export HADOOP_OPTS="-Djava.library.path=$HADOOP_HOME/lib"

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