[WARNING ] Failed to open log file, do you have permission to write to /var/log/salt/master?
salt-minion02:
True
salt-minion01:
True
salt-master:
True
[xiaoyi@salt-master ~]$ salt '*' cmd.run 'w'
[WARNING ] Failed to open log file, do you have permission to write to /var/log/salt/master?
Failed to authenticate! This is most likely because this user is not permitted to execute commands, but there is a small possibility that a disk error occurred (check disk/inode usage).