Mysql启动的方式(四种)_MySQL

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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

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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 <> /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
EOF
#mysql -S /tmp/mysql3306.sock
mysql>GRANT SHUTDOWN ON *.* TO 'mysqladmin'@'localhost' identified by 'mysqladmin' with grant option;
#mysql -S /tmp/mysql3307.sock
mysql>GRANT SHUTDOWN ON *.* TO 'mysqladmin'@'localhost' identified by 'mysqladmin' with grant option;

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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