如何启动和检查MySQL日志?

I want to check the log in MySQL to see the queries that are being run by my application. How can I do this? I am using XAMPP and the directory to MySQL is C:\xampp\mysql.

我要检查MySQL中的日志，查看应用程序运行的查询。我该怎么做呢?我正在使用XAMPP，而MySQL的目录是C:\ XAMPP \ MySQL。

This is what I get when I do show variables like '%log%';

这是当我显示像'%log%'这样的变量时得到的结果;

mysql> show variables like '%log%';
+---------------------------------+------------------------------------+
| Variable_name                   | Value                              |
+---------------------------------+------------------------------------+
| back_log                        | 50                                 |
| binlog_cache_size               | 32768                              |
| binlog_format                   | STATEMENT                          |
| expire_logs_days                | 0                                  |
| general_log                     | OFF                                |
| general_log_file                | C:/xampp/mysql/data/mysql.log      |
| innodb_flush_log_at_trx_commit  | 1                                  |
| innodb_locks_unsafe_for_binlog  | OFF                                |
| innodb_log_buffer_size          | 8388608                            |
| innodb_log_file_size            | 5242880                            |
| innodb_log_files_in_group       | 2                                  |
| innodb_log_group_home_dir       | C:\xampp\mysql\data\               |
| innodb_mirrored_log_groups      | 1                                  |
| log                             | OFF                                |
| log_bin                         | OFF                                |
| log_bin_trust_function_creators | OFF                                |
| log_bin_trust_routine_creators  | OFF                                |
| log_error                       | C:\xampp\mysql\data\mysql.err      |
| log_output                      | FILE                               |
| log_queries_not_using_indexes   | OFF                                |
| log_slave_updates               | OFF                                |
| log_slow_queries                | OFF                                |
| log_warnings                    | 1                                  |
| max_binlog_cache_size           | 4294963200                         |
| max_binlog_size                 | 1073741824                         |
| max_relay_log_size              | 0                                  |
| relay_log                       |                                    |
| relay_log_index                 |                                    |
| relay_log_info_file             | relay-log.info                     |
| relay_log_purge                 | ON                                 |
| relay_log_space_limit           | 0                                  |
| slow_query_log                  | OFF                                |
| slow_query_log_file             | C:/xampp/mysql/data/mysql-slow.log |
| sql_log_bin                     | ON                                 |
| sql_log_off                     | OFF                                |
| sql_log_update                  | ON                                 |
| sync_binlog                     | 0                                  |
+---------------------------------+------------------------------------+
37 rows in set (0.00 sec)

5 个解决方案

#1

Enable general query log by the following query in mysql command line

在mysql命令行中使用以下查询启用通用查询日志。

SET GLOBAL general_log = 'ON';

Now open C:/xampp/mysql/data/mysql.log and check query log

现在打开C:/ xampp / mysql /数据/ mysql。日志和检查查询日志。

If it fails, open your my.cnf file. For windows its my.ini file and enable it there. Just make sure its in the [mysqld] section

如果失败，打开您的my.cnf文件。我对windows。ini文件并启用它。只要确保它在[mysqld]部分。

[mysqld]
general_log             = 1

Note: In xampp my.ini file can be either found in xampp\mysql or in c:\windows directory

注意:在xampp。ini文件可以在xampp\mysql中找到，也可以在c:\windows目录中找到。

#2

Set up the General Query Log.

设置一般查询日志。

#3

Its given on OFFICIAL MYSQL website.

它是在官方MYSQL网站上发布的。

SET GLOBAL general_log = 'ON';

You can also use custom path:

您也可以使用自定义路径:

[mysqld]
# Set Slow Query Log
long_query_time = 1
slow_query_log = 1
slow_query_log_file = "C:/slowquery.log"

#Set General Log
log = "C:/genquery.log"

#4

Seems like the general query log is the file that you need. A good introduction to this is at http://dev.mysql.com/doc/refman/5.1/en/query-log.html

看起来一般的查询日志是您需要的文件。这篇文章的一个很好的介绍是http://dev.mysql.com/doc/refman/5.1/en/querylog.html。

#5

For me, general_log didn't worked. But adding this to my.ini worked

对我来说，general_log没有起作用。把这个加到我的。ini工作

[mysqld]
log-output=FILE
slow_query_log = 1
slow_query_log_file = "d:/temp/developer.log"

#1