andrew@localhost: Permission denied (publickey,password,keyboard-interactive).
ssh localhost没有设置免密码登入
ssh localhostPassword:Last login: Wed May 20 10:48:23 from ::1
ssh-kengen生成密码之后
ssh-keygenGenerating public/private rsa key pair.Enter file in which to save the key (/Users/andrew/.ssh/id_rsa): /Users/andrew/.ssh/id_rsa already exists.Overwrite (y/n)? yEnter passphrase (empty for no passphrase): Enter same passphrase again: Your identification has been saved in /Users/andrew/.ssh/id_rsa.Your public key has been saved in /Users/andrew/.ssh/id_rsa.pub.The key fingerprint is:SHA256:FOWMvClmbKSG99685SZmFb/oPUyipbqHzKK7AVJlt4M andrew@macbookThe key's randomart image is:+---[RSA 3072]----+| o . ...|| o o o = || . E + + o|| . . + o o.||o . || ++ .+*+=o .. |+----[SHA256]-----+
ssh-copy-id localhost即可
ssh-copy-id localhost /usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/Users/andrew/.ssh/id_rsa.pub"/usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed/usr/bin/ssh-copy-id: INFO: 1 key(s) remain to be installed -- if you are prompted now it is to install the new keysPassword:Number of key(s) added: 1Now try logging into the machine, with: "ssh 'localhost'"and check to make sure that only the key(s) you wanted were added.
现在开启hadoop 进程就没问题
start-all.sh WARNING: Attempting to start all Apache Hadoop daemons as andrew in 10 seconds.WARNING: This is not a recommended production deployment configuration.WARNING: Use CTRL-C to abort.Starting namenodes on [localhost]Starting datanodesStarting secondary namenodes [macbook]-05-20 10:49:50,936 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicableStarting resourcemanagerStarting nodemanagersandrew@1macbook:~#jps24834 TaskManagerRunner24581 StandaloneSessionClusterEntrypoint35211 TaskManagerRunner60780 Application60781 Application81487 ResourceManager38287 28242 TaskManagerRunner3987 NameNode4244 SecondaryNameNode4087 DataNode4567 NodeManager4664 Jps72059
