mysql - ubuntu mysql 5.7/var/run/mysqld/mysqld.sock？

Question

ubuntu mysql 5.7/var/run/mysqld/mysqld.sock？

mysql start
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)

使用systemctl状态mysql.service

● mysql.service - MySQL Community Server
Loaded: loaded (/lib/systemd/system/mysql.service; enabled; vendor preset: enabled)
Active: activating (start-post) (Result: exit-code) since 一 2018-12-10 11:45:31 CST; 13s ago
Process: 7442 ExecStart=/usr/sbin/mysqld (code=exited, status=2)
Process: 7434 ExecStartPre=/usr/share/mysql/mysql-systemd-start pre (code=exited, status=0/SUCCESS)
Main PID: 7442 (code=exited, status=2);         : 7443 (mysql-systemd-s)
CGroup: /system.slice/mysql.service
       └─control
         ├─7443 /bin/bash /usr/share/mysql/mysql-systemd-start post
         └─7488 sleep 1

12月 10 11:45:31 user-70DGA014CN systemd[1]: Starting MySQL Community Server...

使用journalctl -xe

Answer 1

日志(红线)表示:您的磁盘(/dev/sda)已损坏。 MySQL无法读取磁盘中的数据，因此它无法运行。也许损坏的磁盘中的数据已经丢失。

请尽快更换损坏的磁盘并从备份中恢复数据。