hadoop通路ssh非預設端口問題

啟動報錯

[[email protected] sbin]# cd /usr/local/hadoop-3.1.4/sbin
[[email protected] sbin]# start-dfs.sh
Starting namenodes on [vpt00043s1a15]
Last login: Mon Mar  8 10:42:05 CST 2021 from 10.225.252.137 on pts/0
vpt00043s1a15: ssh: connect to host vpt00043s1a15 port 22: Connection refused
Starting datanodes
Last login: Mon Mar  8 14:51:46 CST 2021 on pts/0
vpt00043s1a15: ssh: connect to host vpt00043s1a15 port 22: Connection refused
vpt00043s1a13: ssh: connect to host vpt00043s1a13 port 22: Connection refused
vpt00043s1a14: ssh: connect to host vpt00043s1a14 port 22: Connection refused
Starting secondary namenodes [vpt00043s1a15]
Last login: Mon Mar  8 14:51:46 CST 2021 on pts/0
vpt00043s1a15: ssh: connect to host vpt00043s1a15 port 22: Connection refused
           

1.linux系統為了安全加強，修改ssh通路的預設端口号為2222

[[email protected] ~]# vim /etc/ssh/sshd_config
将裡面的Port 22  修改為 Port 2222
[[email protected] ~]#r