无法启用MySQL general_log。我在做什么错了?

时间:2019-01-04 16:56:23

标签: mysql service daemon

我与Ubuntu 18.04一起在MySQL 5.7.24上工作,我正在尝试将general_log设为described here

因此,在我的/etc/mysql/my.cnf中,我添加了以下内容:

general_log = on
general_log_file=/tmp/mysql.log

然后我停止并再次启动mysql,但出现错误:

$ sudo service mysql stop
$ sudo service mysql start
Job for mysql.service failed because the control process exited with error code.
See "systemctl status mysql.service" and "journalctl -xe" for details.

所以我签出了systemctl status mysql.service

● mysql.service - MySQL Community Server
   Loaded: loaded (/lib/systemd/system/mysql.service; enabled; vendor preset: enabled)
   Active: failed (Result: exit-code) since Fri 2019-01-04 17:50:31 CET; 45s ago
  Process: 27206 ExecStart=/usr/sbin/mysqld --daemonize --pid-file=/run/mysqld/mysqld.pid (code=exited, status=0/SUCCESS)
  Process: 27613 ExecStartPre=/usr/share/mysql/mysql-systemd-start pre (code=exited, status=1/FAILURE)
 Main PID: 27208 (code=exited, status=0/SUCCESS)

Jan 04 17:50:31 librem systemd[1]: mysql.service: Failed with result 'exit-code'.
Jan 04 17:50:31 librem systemd[1]: Failed to start MySQL Community Server.
Jan 04 17:50:31 librem systemd[1]: mysql.service: Service hold-off time over, scheduling restart.
Jan 04 17:50:31 librem systemd[1]: mysql.service: Scheduled restart job, restart counter is at 5.
Jan 04 17:50:31 librem systemd[1]: Stopped MySQL Community Server.
Jan 04 17:50:31 librem systemd[1]: mysql.service: Start request repeated too quickly.
Jan 04 17:50:31 librem systemd[1]: mysql.service: Failed with result 'exit-code'.
Jan 04 17:50:31 librem systemd[1]: Failed to start MySQL Community Server.

journalctl -xe中,我几乎得到了相同的结果。

我尝试在/tmp/mysql.log中创建日志文件并将其更改为777,但是这样做之后,启动mysql失败并出现相同的错误。

有人知道这是怎么回事吗?

1 个答案:

答案 0 :(得分:0)

最后,我使用this tip解决了它。只需将其粘贴到此处以供将来的读者使用

SET global log_output = 'FILE';
SET global general_log_file='/var/log/mysql/general.log';
SET global general_log = 1;

无需重启。用户确实需要SUPER特权(GRANT SUPER ON *.* TO user1@localhost)。这适用于数据库上的现有和新连接,并且是全局设置,因此适用于所有数据库。

可以用

关闭
SET global general_log = 0;

无论如何,祝您美好的一天!