56 lines
873 B
Markdown
56 lines
873 B
Markdown
---
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title: 开启Mysql数据库日志
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date: 2023-04-19 15:43:58.709
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updated: 2023-04-19 17:20:44.772
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url: /archives/open-mysql-log
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categories:
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- 数据库
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tags:
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- DB
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---
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想查看数据库执行SQL的记录，可以开启日志，默认是OFF状态，开启后长时间输出日志会占用存储空间，不需要时记得要关闭日志
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## 临时开启log
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**在Mysql中执行**
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查看是否已经开启，并且会输出日志默认存放路径
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```sql
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SHOW VARIABLES LIKE "general_log%";
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```
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开启实时日志输出
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```sql
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SET GLOBAL general_log = 'ON';
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```
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通过tail命令实时查看Mysql日志
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**这种方式在Mysql重启后会失效**
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## 永久开启log
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编辑my.cnf文件
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```sh
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vim /etc/my.cnf
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```
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加入下面两行
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```
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general_log = 1
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general_log_file = /var/log/mysql/general_sql.log
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```
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重启mysql生效
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```sh
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service mysqld restart
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```
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