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The authenticity of host 192.168.0.xxx can't be established

启动hadoop 的时候,可能会报错:

The authenticity of host 192.168.0.xxx can‘t be established

  

解决方案是,在报错的机器上执行如下代码:

ssh -o StrictHostKeyChecking=no 192.168.0.xxx

  

The authenticity of host 192.168.0.xxx can't be established