加入HA後的完全分佈式集羣搭建

節點規劃表： 新項目開始前先把原來的進行備份 搭建步驟： 1. （Hadoop01和Hadoop02相互免祕鑰） Setup passphraseless ssh Now check that you can ssh to the localhost without a passphrase: $ ssh localhost If you cannot ssh to localhost wit

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