ssh: Could not resolve hostname问题终于解决了？

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1、如果系统为64位，无法启动启动hdfs: ./sbin/start-dfs.sh。并有以下错误：

  1. sed: -e expression #1, char 6: unknown option to `s‘  
  2. HotSpot(TM): ssh: Could not resolve hostname HotSpot(TM): Name or service not known  
  3. 64-Bit: ssh: Could not resolve hostname 64-Bit: Name or service not known  
  4. Java: ssh: Could not resolve hostname Java: Name or service not known  
  5. Server: ssh: Could not resolve hostname Server: Name or service not known  
  6. VM: ssh: Could not resolve hostname VM: Name or service not known  

解决方法为： 

  1. vi etc/hadoop/hadoop-env.sh  

加入：

 
  1. export HADOOP_COMMON_LIB_NATIVE_DIR=${HADOOP_PREFIX}/lib/native    

 　　修改:　 export HADOOP_OPTS="-Djava.library.path=$HADOOP_PREFIX/lib" 

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