多套後臺進程+線程+內存結構mysql
多個端口,多個配置文件,多個日誌文件,多個socket,多個server_idweb
多套數據sql
##PS:安裝多實例前,首先確保MySQL數據庫已安裝,mysql安裝參考:http://www.javashuo.com/article/p-pskzyduo-bb.html數據庫
mkdir -p /data/330{7..9} #<=====建立多個目錄vim
================第一個實例===================app
vim /data/3307/my.cnfsocket
[mysqld]ide
basedir=/application/mysqlspa
datadir=/data/3307/data線程
socket=/data/3307/mysql.sock
log-error=/data/3307/mysql.log
log-bin=/data/3307/mysql-bin
server-id=7
port=3307
[client]
socket=/data/3307/mysql.sock
================第二個實例===================
vim /data/3308/my.cnf
[mysqld]
basedir=/application/mysql
datadir=/data/3308/data
socket=/data/3308/mysql.sock
log-error=/data/3308/mysql.log
log-bin=/data/3308/mysql-bin
server-id=8
port=3308
[client]
socket=/data/3308/mysql.sock
================第三個實例===================
vim /data/3309/my.cnf
[mysqld]
basedir=/application/mysql
datadir=/data/3309/data
socket=/data/3309/mysql.sock
log-error=/data/3309/mysql.log
log-bin=/data/3309/mysql-bin
server-id=9
port=3309
[client]
socket=/data/3309/mysql.sock
=========================================
chown -R mysql.mysql /data/330* #<======將3個目錄受權給mysql用戶
/application/mysql/scripts/mysql_install_db --user=mysql --basedir=/application/mysql --datadir=/data/3307/data
=================================================================================
/application/mysql/scripts/mysql_install_db --user=mysql --basedir=/application/mysql --datadir=/data/3308/data
=================================================================================
/application/mysql/scripts/mysql_install_db --user=mysql --basedir=/application/mysql --datadir=/data/3309/data
=================================================================================
mysqld_safe --defaults-file=/data/3307/my.cnf &
====================================================================
mysqld_safe --defaults-file=/data/3308/my.cnf &
====================================================================
mysqld_safe --defaults-file=/data/3309/my.cnf &
====================================================================
touch /data/3309/mysql.log
touch /data/3308/mysql.log
touch /data/3307/mysql.log
chown -R mysql.mysql /data/330*
再次啓動多個實例便可。
===============進入實例===============================
mysql -s /data/3307/mysql.sock #首次進入無密碼
mysql -s /data/3308/mysql.sock
mysql -s /data/3309/mysql.sock