我正在使用 MySQL 数据库服务器 ("Server version: 5.5.40-0ubuntu0.14.04.1 - (Ubuntu)") 使用 phpMyAdmin。

我使用 PHP 作为服务器端语言，它通过 SQL 查询与数据库通信。

我想添加基本上从 PHP 代码调用的所有查询的日志。

我在这个问题上做了很多研究，并在 SO 上解决了各种类似的问题，但我仍然感到困惑，因为所有这些问题和答案都很旧(大约 6-7 年前发布)。

所以我想要针对当前情况的最新、可靠和最佳的解决方案。

尽管让我告诉您一些关于我的服务器的具体信息，以便更好地理解我的问题并为我提供最佳解决方案。

首先我检查了文件my.cnf (服务器上的位置:/etc/mysql/my.cnf)中是否启用了查询日志

文件内容如下:

#
# The MySQL database server configuration file.
#
# You can copy this to one of:
# - "/etc/mysql/my.cnf" to set global options,
# - "~/.my.cnf" to set user-specific options.
# 
# One can use all long options that the program supports.
# Run program with --help to get a list of available options and with
# --print-defaults to see which it would actually understand and use.
#
# For explanations see
# http://dev.mysql.com/doc/mysql/en/server-system-variables.html

# This will be passed to all mysql clients
# It has been reported that passwords should be enclosed with ticks/quotes
# escpecially if they contain "#" chars...
# Remember to edit /etc/mysql/debian.cnf when changing the socket location.
[client]
port        = 3306
socket      = /var/run/mysqld/mysqld.sock

# Here is entries for some specific programs
# The following values assume you have at least 32M ram

# This was formally known as [safe_mysqld]. Both versions are currently parsed.
[mysqld_safe]
socket      = /var/run/mysqld/mysqld.sock
nice        = 0

[mysqld]
#
# * Basic Settings
#
user        = mysql
pid-file    = /var/run/mysqld/mysqld.pid
socket      = /var/run/mysqld/mysqld.sock
port        = 3306
basedir     = /usr
datadir     = /var/lib/mysql
tmpdir      = /tmp
lc-messages-dir = /usr/share/mysql
skip-external-locking
#
# Instead of skip-networking the default is now to listen only on
# localhost which is more compatible and is not less secure.
bind-address        = 127.0.0.1
#
# * Fine Tuning
#
key_buffer      = 16M
max_allowed_packet  = 16M
thread_stack        = 192K
thread_cache_size       = 8
# This replaces the startup script and checks MyISAM tables if needed
# the first time they are touched
myisam-recover         = BACKUP
#max_connections        = 100
#table_cache            = 64
#thread_concurrency     = 10
#
# * Query Cache Configuration
#
query_cache_limit   = 1M
query_cache_size        = 16M
#
# * Logging and Replication
#
# Both location gets rotated by the cronjob.
# Be aware that this log type is a performance killer.
# As of 5.1 you can enable the log at runtime!
#general_log_file        = /var/log/mysql/mysql.log
#general_log             = 1
#
# Error log - should be very few entries.
#
log_error = /var/log/mysql/error.log
#
# Here you can see queries with especially long duration
#log_slow_queries   = /var/log/mysql/mysql-slow.log
#long_query_time = 2
#log-queries-not-using-indexes
#
# The following can be used as easy to replay backup logs or for replication.
# note: if you are setting up a replication slave, see README.Debian about
#       other settings you may need to change.
#server-id      = 1
#log_bin            = /var/log/mysql/mysql-bin.log
expire_logs_days    = 10
max_binlog_size         = 100M
#binlog_do_db       = include_database_name
#binlog_ignore_db   = include_database_name
#
# * InnoDB
#
# InnoDB is enabled by default with a 10MB datafile in /var/lib/mysql/.
# Read the manual for more InnoDB related options. There are many!
#
# * Security Features
#
# Read the manual, too, if you want chroot!
# chroot = /var/lib/mysql/
#
# For generating SSL certificates I recommend the OpenSSL GUI "tinyca".
#
# ssl-ca=/etc/mysql/cacert.pem
# ssl-cert=/etc/mysql/server-cert.pem
# ssl-key=/etc/mysql/server-key.pem



[mysqldump]
quick
quote-names
max_allowed_packet  = 16M

[mysql]
#no-auto-rehash # faster start of mysql but no tab completition

[isamchk]
key_buffer      = 16M

#
# * IMPORTANT: Additional settings that can override those from this file!
#   The files must end with '.cnf', otherwise they'll be ignored.
#
!includedir /etc/mysql/conf.d/

请告诉我需要添加哪些代码才能启用查询日志。

如果您有其他更简单、更安全的方法来启用查询日志，您可以向我解释。

现在我开始知道，在对文件进行更改并上传文件/etc/mysql/my.cnf 后，MySQL 服务器必须重新启动才能使新的更改生效.我应该如何重启它？

如果不需要重启服务器就可以了。

有人可以在这方面帮助我吗？

谢谢。

最佳答案

答案写在配置文件里面

# * Logging and Replication
#
# Both location gets rotated by the cronjob.
# Be aware that this log type is a performance killer.
# As of 5.1 you can enable the log at runtime!
#general_log_file        = /var/log/mysql/mysql.log
#general_log             = 1

只需取消注释 general_log_file 和 general_log 行并重新启动 mysql。

您可以使用查询启用运行时登录，而无需重新启动 mysql:

SET GLOBAL general_log = 'ON';

关于mysql - 如何在服务器上启用 "Server version: 5.5.40-0ubuntu0.14.04.1 - (Ubuntu)"中的 MySQL 查询日志？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/30094945/