未经身份验证的用户在MYSQL中的含义是什么?

omg*_*omg 21 mysql

mysql> show full processlist;
+-----+----------------------+--------------------+------+---------+------+----------------------------------+-----------------------+
| Id  | User                 | Host               | db   | Command | Time | State                            | Info                  |
+-----+----------------------+--------------------+------+---------+------+----------------------------------+-----------------------+
|   1 | system user          |                    | NULL | Connect |  623 | Waiting for master to send event | NULL                  | 
|   2 | system user          |                    | NULL | Connect |    0 | Reading event from the relay log | NULL                  | 
| 400 | root                 | localhost          | v3   | Sleep   |   68 |                                  | NULL                  | 
| 585 | root                 | localhost          | v3   | Query   |    0 | NULL                             | show full processlist | 
| 748 | unauthenticated user | 172.19.0.27:32833  | NULL | Connect | NULL | login                            | NULL                  | 
| 749 | unauthenticated user | 172.19.0.27:32836  | NULL | Connect | NULL | login                            | NULL                  | 
| 750 | unauthenticated user | 172.19.0.27:32838  | NULL | Connect | NULL | login                            | NULL                  | 
| 751 | unauthenticated user | 172.19.0.27:32841  | NULL | Connect | NULL | login                            | NULL                  | 
| 752 | unauthenticated user | 172.19.0.27:32844  | NULL | Connect | NULL | login                            | NULL                  | 
| 753 | unauthenticated user | 172.19.0.27:32846  | NULL | Connect | NULL | login                            | NULL                  | 
| 754 | unauthenticated user | 172.19.0.27:32848  | NULL | Connect | NULL | login                            | NULL                  | 
| 755 | unauthenticated user | 172.19.0.139:46827 | NULL | Connect | NULL | login                            | NULL                  | 
| 756 | unauthenticated user | 172.19.0.139:46830 | NULL | Connect | NULL | login                            | NULL                  | 
| 757 | unauthenticated user | 172.19.0.139:46831 | NULL | Connect | NULL | login                            | NULL                  | 
| 758 | unauthenticated user | 172.19.0.27:32857  | NULL | Connect | NULL | login                            | NULL                  | 
| 759 | unauthenticated user | 172.19.0.27:32858  | NULL | Connect | NULL | login                            | NULL                  | 
| 760 | unauthenticated user | 172.19.0.27:32859  | NULL | Connect | NULL | login                            | NULL                  | 
| 761 | unauthenticated user | 172.19.0.27:32863  | NULL | Connect | NULL | login                            | NULL                  | 
| 762 | unauthenticated user | 172.19.0.27:32864  | NULL | Connect | NULL | login                            | NULL                  | 
| 763 | unauthenticated user | 172.19.0.27:32866  | NULL | Connect | NULL | login                            | NULL                  | 
| 764 | unauthenticated user | 172.19.0.27:32870  | NULL | Connect | NULL | login                            | NULL                  | 
| 765 | unauthenticated user | 172.19.0.27:32871  | NULL | Connect | NULL | login                            | NULL                  | 
| 766 | unauthenticated user | 172.19.0.139:46833 | NULL | Connect | NULL | login                            | NULL                  | 
| 767 | unauthenticated user | 172.19.0.27:32878  | NULL | Connect | NULL | login                            | NULL                  | 
| 768 | unauthenticated user | 172.19.0.27:32881  | NULL | Connect | NULL | login                            | NULL                  | 
| 769 | unauthenticated user | 172.19.0.27:32885  | NULL | Connect | NULL | login                            | NULL                  | 
| 770 | unauthenticated user | 172.19.0.139:46835 | NULL | Connect | NULL | login                            | NULL                  | 
| 771 | unauthenticated user | 172.19.0.27:32888  | NULL | Connect | NULL | login                            | NULL                  | 
| 772 | unauthenticated user | 172.19.0.27:32890  | NULL | Connect | NULL | login                            | NULL                  | 
| 773 | unauthenticated user | 172.19.0.139:46837 | NULL | Connect | NULL | login                            | NULL                  | 
| 774 | unauthenticated user | 172.19.0.139:46839 | NULL | Connect | NULL | login                            | NULL                  | 
| 775 | unauthenticated user | 172.19.0.139:46841 | NULL | Connect | NULL | login                            | NULL                  | 
| 776 | unauthenticated user | 172.19.0.139:46844 | NULL | Connect | NULL | login                            | NULL                  | 
| 777 | unauthenticated user | 172.19.0.139:46845 | NULL | Connect | NULL | login                            | NULL                  | 
| 778 | unauthenticated user | 172.19.0.139:46847 | NULL | Connect | NULL | login                            | NULL                  | 
| 779 | unauthenticated user | 172.19.0.27:32898  | NULL | Connect | NULL | login                            | NULL                  | 
| 780 | unauthenticated user | 172.19.0.27:32900  | NULL | Connect | NULL | login                            | NULL                  | 
| 781 | unauthenticated user | 172.19.0.139:46850 | NULL | Connect | NULL | login                            | NULL                  | 
| 782 | unauthenticated user | 172.19.0.139:46852 | NULL | Connect | NULL | login                            | NULL                  | 
| 783 | unauthenticated user | 172.19.0.139:46854 | NULL | Connect | NULL | login                            | NULL                  | 
| 784 | unauthenticated user | 172.19.0.139:46857 | NULL | Connect | NULL | login                            | NULL                  | 
| 785 | unauthenticated user | 172.19.0.139:46859 | NULL | Connect | NULL | login                            | NULL                  | 
| 786 | unauthenticated user | 172.19.0.27:32903  | NULL | Connect | NULL | login                            | NULL                  | 
| 787 | unauthenticated user | 172.19.0.139:46862 | NULL | Connect | NULL | login                            | NULL                  | 
| 788 | unauthenticated user | 172.19.0.139:46865 | NULL | Connect | NULL | login                            | NULL                  | 
| 789 | unauthenticated user | 172.19.0.139:46866 | NULL | Connect | NULL | login                            | NULL                  | 
| 790 | unauthenticated user | 172.19.0.139:46868 | NULL | Connect | NULL | login                            | NULL                  | 
| 791 | unauthenticated user | 172.19.0.139:46871 | NULL | Connect | NULL | login                            | NULL                  | 
| 792 | unauthenticated user | 172.19.0.139:46873 | NULL | Connect | NULL | login                            | NULL                  | 
| 793 | unauthenticated user | 172.19.0.27:32907  | NULL | Connect | NULL | login                            | NULL                  | 
| 794 | unauthenticated user | 172.19.0.27:32909  | NULL | Connect | NULL | login                            | NULL                  | 
| 795 | unauthenticated user | 172.19.0.27:32911  | NULL | Connect | NULL | login                            | NULL                  | 
| 796 | unauthenticated user | 172.19.0.139:46875 | NULL | Connect | NULL | login                            | NULL                  | 
| 797 | unauthenticated user | 172.19.0.27:32914  | NULL | Connect | NULL | login                            | NULL                  | 
| 798 | unauthenticated user | 172.19.0.27:32916  | NULL | Connect | NULL | login                            | NULL                  | 
| 799 | unauthenticated user | 172.19.0.139:46877 | NULL | Connect | NULL | login                            | NULL                  | 
| 800 | unauthenticated user | 172.19.0.139:46879 | NULL | Connect | NULL | login                            | NULL                  | 
+-----+----------------------+--------------------+------+---------+------+----------------------------------+-----------------------+
57 rows in set (0.00 sec)
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Art*_*kii 29

"用户"列中与"未经身份验证的用户"的连接已启动连接但尚未发送其凭据,因此服务器无法确定谁正在连接.

如果此类连接仅在经过身份验证时显示在列表中,则可能会从可用套接字中运行服务器,您甚至不知道原因.

大多数情况下卡住的连接是由于DNS无法正确解析,所以skip-name-resolve选项会有所帮助.

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小智 5

您可能需要使用skip-name-resolve,因为mysql正在尝试解析mysql主机地址,或者在文件/ etc/hosts中添加要连接的主机名,或者两者都添加.奖励:修复您的DNS导致查找超时的任何问题