无法运行start-dfs.sh [英] unable to run start-dfs.sh

问题描述

我无法运行 start-dfs.sh

  ubuntu @ UBUNTU：〜$ start-dfs.sh 
 14/10/19 19:26:50 WARN util.NativeCodeLoader：无法为您的平台加载native-hadoop库...在适用的情况下使用builtin-java类
在[localhost]上启动namenodes 
 localhost：ssh：连接到主机localhost端口22：连接被拒绝
 localhost：ssh：连接到主机localhost端口22：连接被拒绝
从第二个namenodes [0.0.0.0] 
 0.0.0.0：ssh：连接到主机0.0.0.0端口22：连接被拒绝
 14/10/19 19:27:19 WARN util.NativeCodeLoader：无法加载本机-hadoop library for your platform ...在适用的地方使用builtin-java类
 ubuntu @ UBUNTU：〜$ 
  

我在安装hadoop时做了以下事情：

  ssh-keygen -t rsa -P''
 cat〜/ .ssh / id_rsa.pub>> 〜/ .ssh / authorized_keys 
  

解决方案 ssh localhost 工作？我猜不会。你必须先做好这项工作。你必须有公钥/私钥集合的工作组合。有关更多信息，请参阅google 无密码SSH登录或在此查看示例： http://rcsg-gsir.imsb-dsgi.nrc-cnrc.gc.ca/documents/internet/node31.html

I am unable to run start-dfs.sh

ubuntu@UBUNTU:~$ start-dfs.sh
14/10/19 19:26:50 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
Starting namenodes on [localhost]
localhost: ssh: connect to host localhost port 22: Connection refused
localhost: ssh: connect to host localhost port 22: Connection refused
Starting secondary namenodes [0.0.0.0]
0.0.0.0: ssh: connect to host 0.0.0.0 port 22: Connection refused
14/10/19 19:27:19 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
ubuntu@UBUNTU:~$

I did the following while installing hadoop:

ssh-keygen -t rsa -P ''
cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys

解决方案

Does ssh localhost work? I guess not. You have to make that work first. You have to have a working combination of public/private key set. For more information, google passwordless SSH login or have a look for example here: http://rcsg-gsir.imsb-dsgi.nrc-cnrc.gc.ca/documents/internet/node31.html

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