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mysql的四種啟動方式:

1、mysqld

啟動mysql服務(wù)器:./mysqld --defaults-file=/etc/my.cnf --user=root

客戶端連接:

mysql --defaults-file=/etc/my.cnf

or

mysql -S /tmp/mysql.sock

2、mysqld_safe

啟動mysql服務(wù)器:./mysqld_safe --defaults-file=/etc/my.cnf --user=root &

客戶端連接:

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

啟動mysql服務(wù)器:service mysql.server {start|stop|restart|reload|force-reload|status}

客戶端連接: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

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;

啟動mysql服務(wù)器:./mysqld_multi --defaults-file=/etc/my.cnf start 3306-3307

關(guān)閉mysql服務(wù)器:mysqladmin shutdown

可參考<<MySql5.1參考手冊>>

http://dev.mysql.com/doc/refman/5.1/zh/database-administration.html#server-side-scripts

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