windows mysql默认的ini文件在那里

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蓝月亮 2024-09-02 20:38:49

配置文件加载问题（查看自己使用的哪个配置文件）

MySQL 配置文件加载位置与顺序：
1./usr/local/mysql/bin/mysqld –verbose –help >help.txt 2>&1
(/usr/local/mysql/bin/mysqld –verbose –help 这个命令生成所有mysqld选项和可配置变量的列表然后重定向到help.txt，标准错误也重定向到这个文件中)
2.查看这个文件：vi help.txt
3.搜索my.cnf:

Default options are read from the following files in the given order:
(默认选项在给定的顺序从下列文件中读取：)
/etc/my.cnf /etc/mysql/my.cnf /usr/local/mysql/etc/my.cnf ~/.my.cnf
The following groups are read: mysqld server mysqld-5.7
The following options may be given as the first argument:
--print-defaults        Print the program argument list and exit.
--defaults-file=#       Only read default options from the given file #.（加载指定的不加载其他）
--defaults-extra-file=# Read this file after the global files are read.
（加载默认的之后在加载指定的）

so：my.cnf是按照这个顺序读取的，如果有那个配置不一样但是有多个my.cnf是按照最后一个配置为准的

mysql的四种启动方式:

1、mysqld 
 启动mysql服务器:./mysqld –defaults-file=/etc/my.cnf –user=root 
 客户端连接: 
 mysql –defaults-file=/etc/my.cnf 
 or 
 mysql -S /tmp/mysql.sock 2、mysqld_safe 
 启动mysql服务器:./mysqld_safe –defaults-file=/etc/my.cnf –user=root & 
 客户端连接: 
 mysql –defaults-file=/etc/my.cnf 
 or 
 mysql -S /tm/mysql.sock 3、mysql.server 
 cp -v /usr/local/mysql/support-files/mysql.server /etc/init.d/ 
 chkconfig –add mysql.server 
 启动mysql服务器:service mysql.server {start|stop|restart|reload|force-reload|status} 
 客户端连接:同1、2 4、mysqld_multi 
 mkdir $MYSQL_BASE/data2 
 cat <<-EOF>> /etc/my.cnf 
 [mysqld_multi] 
 mysqld = /usr/local/mysql/bin/mysqld_safe 
 mysqladmin = /user/local/mysql/bin/mysqladmin 
 user = mysqladmin 
 password = mysqladmin [mysqld3306] 
 port = 3306 
 socket = /tmp/mysql3306.sock 
 pid-file = /tmp/mysql3306.pid 
 skip-external-locking 
 key_buffer_size = 16M 
 max_allowed_packet = 1M 
 table_open_cache = 64 
 sort_buffer_size = 512K 
 net_buffer_length = 8K 
 read_buffer_size = 256K 
 read_rnd_buffer_size = 512K 
 myisam_sort_buffer_size = 8M 
 basedir = /usr/local/mysql 
 datadir = /usr/local/mysql/data [mysqld3307] 
 port = 3307 
 socket = /tmp/mysql3307.sock 
 pid-file = /tmp/mysql3307.pid 
 skip-external-locking 
 key_buffer_size = 16M 
 max_allowed_packet = 1M 
 table_open_cache = 64 
 sort_buffer_size = 512K 
 net_buffer_length = 8K 
 read_buffer_size = 256K 
 read_rnd_buffer_size = 512K 
 myisam_sort_buffer_size = 8M 
 basedir = /usr/local/mysql 
 datadir = /usr/local/mysql/data2 
 EOFmysql -S /tmp/mysql3306.sock
.
mysql -S /tmp/mysql3307.sock

启动mysql服务器:./mysqld_multi –defaults-file=/etc/my.cnf start 3306-3307
关闭mysql服务器:mysqladmin shutdown

配置文件加载问题（查看自己使用的哪个配置文件）

Default options are read from the following files in the given order:
(默认选项在给定的顺序从下列文件中读取：)
/etc/my.cnf /etc/mysql/my.cnf /usr/local/mysql/etc/my.cnf ~/.my.cnf
The following groups are read: mysqld server mysqld-5.7
The following options may be given as the first argument:
--print-defaults        Print the program argument list and exit.
--defaults-file=#       Only read default options from the given file #.（加载指定的不加载其他）
--defaults-extra-file=# Read this file after the global files are read.
（加载默认的之后在加载指定的）

so：my.cnf是按照这个顺序读取的，如果有那个配置不一样但是有多个my.cnf是按照最后一个配置为准的

mysql的四种启动方式:

1、mysqld 
 启动mysql服务器:./mysqld –defaults-file=/etc/my.cnf –user=root 
 客户端连接: 
 mysql –defaults-file=/etc/my.cnf 
 or 
 mysql -S /tmp/mysql.sock 2、mysqld_safe 
 启动mysql服务器:./mysqld_safe –defaults-file=/etc/my.cnf –user=root & 
 客户端连接: 
 mysql –defaults-file=/etc/my.cnf 
 or 
 mysql -S /tm/mysql.sock 3、mysql.server 
 cp -v /usr/local/mysql/support-files/mysql.server /etc/init.d/ 
 chkconfig –add mysql.server 
 启动mysql服务器:service mysql.server {start|stop|restart|reload|force-reload|status} 
 客户端连接:同1、2 4、mysqld_multi 
 mkdir $MYSQL_BASE/data2 
 cat <<-EOF>> /etc/my.cnf 
 [mysqld_multi] 
 mysqld = /usr/local/mysql/bin/mysqld_safe 
 mysqladmin = /user/local/mysql/bin/mysqladmin 
 user = mysqladmin 
 password = mysqladmin [mysqld3306] 
 port = 3306 
 socket = /tmp/mysql3306.sock 
 pid-file = /tmp/mysql3306.pid 
 skip-external-locking 
 key_buffer_size = 16M 
 max_allowed_packet = 1M 
 table_open_cache = 64 
 sort_buffer_size = 512K 
 net_buffer_length = 8K 
 read_buffer_size = 256K 
 read_rnd_buffer_size = 512K 
 myisam_sort_buffer_size = 8M 
 basedir = /usr/local/mysql 
 datadir = /usr/local/mysql/data [mysqld3307] 
 port = 3307 
 socket = /tmp/mysql3307.sock 
 pid-file = /tmp/mysql3307.pid 
 skip-external-locking 
 key_buffer_size = 16M 
 max_allowed_packet = 1M 
 table_open_cache = 64 
 sort_buffer_size = 512K 
 net_buffer_length = 8K 
 read_buffer_size = 256K 
 read_rnd_buffer_size = 512K 
 myisam_sort_buffer_size = 8M 
 basedir = /usr/local/mysql 
 datadir = /usr/local/mysql/data2 
 EOFmysql -S /tmp/mysql3306.sock
.
mysql -S /tmp/mysql3307.sock
.
 启动mysql服务器:./mysqld_multi –defaults-file=/etc/my.cnf start 3306-3307 
 关闭mysql服务器:mysqladmin shutdown

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