hadoop - ssh:连接到主机从端口22:连接超时

Question

已编辑:-

我已经在两台不同的机器上完成了单节点集群，我已将其中一台作为主机(192.168.1.1)，将另一台主机作为从机(192.168.1.2)，我成功地能够在两台机器之间进行 ping 操作，我已进行以下更改以进入 2 节点集群更新:-

两台机器上的/etc/hosts hosts.allow

All :  Ashish-PC 192.168.1.1 : allow
All  : slave 192.168.1.2 : allow

主文件

  Ashish-PC

从属文件

  Ashish-PC 
  slave

将本地主机公钥复制到远程主机(从机)时出现错误:端口 22

 ssh-copy-id -i ~/.ssh/id_rsa.pub hadoop@slave
 /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: ERROR: ssh: connect to host slave port 22: Connection timed out

以及当我在主服务上启动所有 dfs 时:-

 bin/start-dfs.sh
starting namenode, logging to /usr/local/hadoop/libexec/../logs/hadoop-Ashish-namenode-  Ashish-PC.out
slave: ssh: connect to host slave port 22: Connection timed out
Ashish-PC: starting secondarynamenode, logging to       /usr/local/hadoop/libexec/../logs/hadoop-Ashish-secondarynamenode-Ashish-PC.out
slave: ssh: connect to host slave port 22: Connection timed out

复制 key 时:-

ssh-copy-id -i ~/.ssh/id_rsa.pub hadoop@slave
/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: ERROR: ssh: connect to host slave port 22: Connection timed out

我已经使用了 cygwin 并且 ssh 在两台 PC 上都工作正常，我经历了一些更改端口号 22 的建议(因为 ISP 问题)，但我不想这样做 because 。 预先感谢您的帮助和回复。

Answer 1

通过在家庭和公共(public)网络中添加 sshd，允许主机通过 Windows 防火墙进行通信...

确保每个节点上都启动了 sshd 服务以进行通信。