Recently abandoned the non-SSH connection http://www.aliyun.com/zixun/aggregation/14119.html ">hadoop cluster deployment, or back to the way the SSH key authentication." There is some trouble here, each machine must upload the public key. I am also a very lazy person, so write a few small script completed, as long as the top of a machine can do the distribution of the public key.
The first is to generate the SSH key script:
Ssh-keygen generally need to input passphrase, but generally are three return to the past, I lazy input, plus-P "".
Then you add the public key to the script from the node:
Then the third script reads the host list and then copies the hosts to all hosts:
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