如何在emr上重新启动hadoop集群

问题描述

我在Amazon Elastic MapReduce上安装了hadoop安装，每当我尝试重新启动集群时，都会收到以下错误消息：

  /stop-all.sh 
 no jobtracker停止
主机'localhost（:: 1）'的真实性无法建立。 RSA密钥指纹是
您确定要继续连接（是/否）吗？是
 localhost：警告：永久性地将'localhost'（RSA）添加到已知主机列表中。 
 localhost：权限被拒绝（publickey）。 
 no namenode停止
 localhost：权限被拒绝（publickey）。 
 localhost：权限被拒绝（publickey）。 
  

有关如何重新启动hadoop的想法？

我已经用sbin / slaves.sh& amp; amp; sbin替换了ssh命令。 sbin / hadoop-daemon.sh与ssh -i〜/ .ssh / keyname

I have a hadoop installation on the Amazon Elastic MapReduce , whenever I try to restart the cluster I get the following error:

/stop-all.sh
no jobtracker to stop
The authenticity of host 'localhost (::1)' can't be established. RSA key fingerprint is
Are you sure you want to continue connecting (yes/no)? yes
localhost: Warning: Permanently added 'localhost' (RSA) to the list of known hosts.
localhost: Permission denied (publickey).
no namenode to stop
localhost: Permission denied (publickey).
localhost: Permission denied (publickey).

Any idea on how to restart hadoop?

解决方案

Following hack worked for me.

I have replaced "ssh" command in sbin/slaves.sh & sbin/hadoop-daemon.sh with "ssh -i ~/.ssh/keyname"

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