有關linux中出現systemctl status network.service" and "journalctl -xe" for details.

Job for network.service failed because the control process exited with error code

>**[root@mina0 hadoop]# systemctl restart network
Job for network.service failed because the control process exited with error code.
 See "systemctl status network.service" and "journalctl -xe" for details.

針對上面報錯

[root@mina0 hadoop]# journalctl -xe
10月 26 17:15:57 mina0 network[3308]: 正在打開環回接口： [  確定  ]
10月 26 17:15:57 mina0 NetworkManager[679]: <info>  [1509009357.3386] audit: op="connec
10月 26 17:15:57 mina0 network[3308]: 正在打開接口 ens33： 錯誤：激活連接失敗：No suita
10月 26 17:15:57 mina0 network[3308]: [失敗]
10月 26 17:15:57 mina0 network[3308]: RTNETLINK answers: File exists
10月 26 17:15:57 mina0 network[3308]: RTNETLINK answers: File exists
10月 26 17:15:57 mina0 network[3308]: RTNETLINK answers: File exists
10月 26 17:15:57 mina0 network[3308]: RTNETLINK answers: File exists
10月 26 17:15:57 mina0 network[3308]: RTNETLINK answers: File exists
10月 26 17:15:57 mina0 network[3308]: RTNETLINK answers: File exists
10月 26 17:15:57 mina0 network[3308]: RTNETLINK answers: File exists
10月 26 17:15:57 mina0 network[3308]: RTNETLINK answers: File exists
10月 26 17:15:57 mina0 network[3308]: RTNETLINK answers: File exists
10月 26 17:15:57 mina0 polkitd[680]: Unregistered Authentication Agent for unix-process
10月 26 17:15:57 mina0 systemd[1]: network.service: control process exited, code=exited
10月 26 17:15:57 mina0 systemd[1]: Failed to start LSB: Bring up/down networking.
-- Subject: Unit network.service has failed
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit network.service has failed.
>The result is failed.
10月 26 17:15:57 mina0 systemd[1]: Unit network.service entered failed state.
10月 26 17:15:57 mina0 systemd[1]: network.service failed.

解決辦法：

第一種：有人是mac地址的問題

更改了物理網卡或者增加了新設備，或者是克隆時沒有完全鏈接克隆，那么只需要在網絡配置文件中加上

HWADDR=XXXXXX 就行了，但是 往往都不能有效結果該問題

通過觀察

那么最粗暴直接的辦法就是第三種：

 

第二種：有人是直接VMware下面的連接斷開了 或者說沒有設置啟動自動連接

那么第三種就是觀察日志發現有個 NetworkManager的網絡服務組件，對他進行以下操作就可以了

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

然后：重啟網卡：

[root@mina0 hadoop]# systemctl restart network