salt出错Job for salt-master.service failed because the control process exited with error code.

问题

&emsap; 在虚拟机上使用salt的时候，因为一边看文档一边学习，突然之前salt就用不了了，然后

ps aux | grep salt

&emsap; 发现salt-maste和salt-minion都在，准备重启一下salt-master服务试试：

sudo service salt-master restart

但是提示报错：

Job for salt-master.service failed because the control process exited with error code. See "systemctl status salt-master.service" and "journalctl -xe" for details.

使用提示的命令看出错信息：

root@ubuntu:/home/nick# systemctl status salt-master.service
● salt-master.service - The Salt Master Server
Loaded: loaded (/lib/systemd/system/salt-master.service; enabled; vendor preset: enabled)
Active: failed (Result: exit-code) since Fri 2018-03-09 16:13:34 CST; 13min ago
Docs: man:salt-master(1)
file:///usr/share/doc/salt/html/contents.html https://docs.saltstack.com/en/latest/contents.html Process: 2408 ExecStart=/usr/bin/salt-master (code=exited, status=4)
Main PID: 2408 (code=exited, status=4)

Mar 09 16:13:33 ubuntu systemd[1]: Stopped The Salt Master Server.
Mar 09 16:13:33 ubuntu systemd[1]: Starting The Salt Master Server...
Mar 09 16:13:34 ubuntu salt-master[2408]: [WARNING ] Unable to bind socket 192.168.164.134:4505, error: [Errno
Mar 09 16:13:34 ubuntu salt-master[2408]: The salt master is shutdown. The ports are not available to bind
Mar 09 16:13:34 ubuntu systemd[1]: salt-master.service: Main process exited, code=exited, status=4/NOPERMISSIO
Mar 09 16:13:34 ubuntu systemd[1]: Failed to start The Salt Master Server.
Mar 09 16:13:34 ubuntu systemd[1]: salt-master.service: Unit entered failed state.
Mar 09 16:13:34 ubuntu systemd[1]: salt-master.service: Failed with result 'exit-code'.

//以及
root@ubuntu:/home/nick# journalctl -xe
Mar 09 15:41:45 ubuntu systemd[1]: Stopped The Salt Master Server.
-- Subject: salt-master.service 单元已结束停止操作
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel --
-- salt-master.service 单元已结束停止操作。
Mar 09 15:41:45 ubuntu systemd[1]: Starting The Salt Master Server...
-- Subject: salt-master.service 单元已开始启动
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel --
-- salt-master.service 单元已开始启动。
Mar 09 15:41:45 ubuntu salt-master[2862]: [WARNING ] Unable to bind socket 192.168.164.134:4507, error: [Errno 99] Cannot assign requested address; Is there another salt-master running?
Mar 09 15:41:46 ubuntu salt-master[2862]: The salt master is shutdown. The ports are not available to bind
Mar 09 15:41:46 ubuntu systemd[1]: salt-master.service: Main process exited, code=exited, status=4/NOPERMISSION
Mar 09 15:41:46 ubuntu systemd[1]: Failed to start The Salt Master Server.
-- Subject: salt-master.service 单元已失败
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel --
-- salt-master.service 单元已失败。
--
-- 结果为“failed”。
Mar 09 15:41:46 ubuntu systemd[1]: salt-master.service: Unit entered failed state.
Mar 09 15:41:46 ubuntu systemd[1]: salt-master.service: Failed with result 'exit-code'.

  根据提示，显示无法绑定4505（安装salt时默认使用4505端口，可以再/etc/salt/master中修改）端口，然后使用

netstat -lnput

  查看端口号，发现并没有进程占用4505端口，然后去网上找了好多方法——无果。

  最终发现自己IP变了，因为用的虚拟机，IP他就突兀的变了，不给我一点点防备。

  在/etc/salt/master中修改完IP就好了（因为之前为了其他服务的正常运行，我将默认的0:0:0:0改成了虚拟机的IP，所以虚拟机IP改变之后就无法成功运行）。

  告诫大家，如果在虚拟机上学习使用salt，没有别的要求的话别动master里面的IP设置

半小时后更新：

记得改minion里面的IP，同样在

/etc/salt/minion

中，不说了，哭晕在厕所，呜呜呜~~