Because the Hadoop master node communicates with slave nodes using SSH, you should set up an authenticated no-passphrase SSH connection between the master and slaves.
因为hadoop主节点使用SSH与从节点通信，所以应该在主节点和从节点之间建立经过身份验证的无密码的SSH连接。
Because the Hadoop master node communicates with slave nodes using SSH, you should set up an authenticated no-passphrase SSH connection between the master and slaves.
因为hadoop主节点使用SSH与从节点通信，所以应该在主节点和从节点之间建立经过身份验证的无密码的SSH连接。
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