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 或者 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 或者 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、24、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 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