centos7重启网卡报Job for network.service failed because...错误

解决：

[root@mina0 hadoop]# systemctl stop NetworkManager
[root@mina0 hadoop]# systemctl disable NetworkManager

##############

然后：重启网卡即可：
[root@mina0 hadoop]# systemctl restart network
[root@mina0 hadoop]# ifconfig

原文：https://www.cnblogs.com/116970u/p/11391816.html