☰

无法启动 mysql 社区服务器（5.7）

tag-icon • tag-icon server mysql
无法启动 mysql 社区服务器（5.7）

所以最近我重新安装目录后开始出现新的错误，/etc/mysql在我使用显示的过程重新安装目录后，该目录看起来正确这里，我使用了“恢复已删除的目录”方法。现在我在启动 MySQL 服务器本身时遇到了问题，我不想卸载或重新安装数据库，因为我害怕丢失文件。我将提供所有必要的详细信息，以尝试以安全的方法解决此问题。

错误详情：

Job for mysql.service failed because the control process exited with error code. See "systemctl status mysql.service" and "journalctl -xe" for details.
invoke-rc.d: initscript mysql, action "start" failed.
● mysql.service - MySQL Community Server
   Loaded: loaded (/lib/systemd/system/mysql.service; enabled; vendor preset: enabled)
   Active: activating (auto-restart) (Result: exit-code) since Sat 2019-12-21 16:59:38 EST; 5ms ago
  Process: 3942 ExecStartPost=/usr/share/mysql/mysql-systemd-start post (code=exited, status=0/SUCCESS)
  Process: 3941 ExecStart=/usr/sbin/mysqld (code=exited, status=2)
  Process: 3933 ExecStartPre=/usr/share/mysql/mysql-systemd-start pre (code=exited, status=0/SUCCESS)
 Main PID: 3941 (code=exited, status=2)

Dec 21 16:59:38 ns529730 systemd[1]: Failed to start MySQL Community Server.
Dec 21 16:59:38 ns529730 systemd[1]: mysql.service: Unit entered failed state.
Dec 21 16:59:38 ns529730 systemd[1]: mysql.service: Failed with result 'exit-code'.
dpkg: error processing package mysql-server-5.7 (--configure):
 subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
 mysql-server-5.7
E: Sub-process /usr/bin/dpkg returned an error code (1)

systemctl status 命令显示：

root@ns529730:~# systemctl status 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 Sat 2019-12-21 17:10:40 EST; 14s ago
  Process: 6727 ExecStart=/usr/sbin/mysqld (code=exited, status=2)
  Process: 6720 ExecStartPre=/usr/share/mysql/mysql-systemd-start pre (code=exited, status=0/SUCCESS)
 Main PID: 6727 (code=exited, status=2);         : 6728 (mysql-systemd-s)
   Memory: 15.0M
      CPU: 327ms
   CGroup: /system.slice/mysql.service
           └─control
             ├─6728 /bin/bash /usr/share/mysql/mysql-systemd-start post
             └─6784 mysqladmin ping

Dec 21 17:10:40 ns529730 systemd[1]: Starting MySQL Community Server...
Dec 21 17:10:41 ns529730 systemd[1]: mysql.service: Main process exited, code=exited, status=2/INVALIDARGUMENT

系统：Ubuntu 16.04 MySQL版本：5.7

答案1

好的，我通过innodb_force_recovery = 1在mysqld.cnf文件中的 [mysqld] 下添加来修复了这个问题。您可以尝试从 1 到 10 的数字，因为第一次使用时可能不起作用。对于使用旧 mysql 版本的人来说，您应该在主配置文件上执行此操作，因为旧版本中有配置文件，etc/mysql/my.cnf但 5.7 mysql 版本中有配置文件etc/mysql/mysql.conf.d/mysqld.cnf 。答案来自这里完成编辑后，尝试使用以下方法启动 mysql 服务器sudo systemctl start mysql

相关内容