前言：前文已經介紹單實例的安裝，我們接著進行Mysql的多實例安裝,我們利用多個配置文件，多個啟動文件管理多實例

一、安裝依賴包yum???install??ncurses-devel?libaio-devel?gcc??gcc-c++???cmake?perl

下載Mysql安裝包，下載地址mysql-5.5安裝包，并解壓安裝包tar?-zxvf?mysql-5.5.32.tar.gz

cd??mysql-5.5.32

編譯安裝cmake?\

-DCMAKE_INSTALL_PREFIX=/usr/local/mysql?\

-DWITH_INNOBASE_STORAGE_ENGINE=1?\

-DWITH_FEDERATED_STORAGE_ENGINE=1?\

-DWITH_BLACKHOLE_STORAGE_ENGINE=1?\-DWITH_EXAMPLE_STORAGE_ENGINE=1?\-DWITH_PARTITION_STORAGE_ENGINE=1?\-DWITH_FAST_MUTEXES=1?\-DWITH_ZLIB=bundled?\-DENABLED_LOCAL_INFILE=1?\-DWITH_READLINE=1?\

-DWITH_EMBEDDED_SERVER=1?\

-DMYSQL_UNIX_ADDR=/usr/local/mysql/mysql.sock\

-DENABLED_LOCAL_INFILE=ON?\

-DDEFAULT_CHARSET=utf8?\

-DDEFAULT_COLLATION=utf8_general_ci?\

-DWITH_DEBUG=0

make?&&?make?install

二、配置用戶權限

設置Mysql用戶和組groupadd??mysql

useradd?-g?mysql?mysql

新建Mysql安裝目錄和數據文件目錄mkdir??-p?/usr/local/mysql

mkdir??-p?/data/3306

mkdir??-p?/data/3307

修改目錄所有者和組chown?-R??mysql:mysql??/usr/local/mysql

chown?-R??mysql:mysql??/data/3306

chown?-R??mysql:mysql??/data/3307

三、初始化數據庫，配置配置文件，配置啟動文件等/usr/local/mysql/scripts/mysql_install_db?--basedir=/usr/local/mysql?--datadir=/data/3306/data?--user=mysql

/usr/local/mysql/scripts/mysql_install_db?--basedir=/usr/local/mysql?--datadir=/data/3307/data?--user=mysql

創建多個配置文件vim??/data/3306/my.cnf

[client]

port?=?3306

socket?=?/data/3306/mysql.sock

[mysqld]

port?=?3306

socket?=?/data/3306/mysql.sock

basedir?=?/usr/local/mysql

datadir?=?/data/3306/data

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

skip-name-resolve

log-bin=mysql-bin

binlog_format=mixed

max_binlog_size?=?500M

server-id?=?1

[mysqld_safe]

log-error=/data/3306/ilanni.err

pid-file=/data/3306/ilanni.pid

[mysqldump]

quick

max_allowed_packet?=?16M

[mysql]

no-auto-rehash

[myisamchk]

key_buffer_size?=?20M

sort_buffer_size?=?20M

read_buffer?=?2M

write_buffer?=?2M

[mysqlhotcopy]

interactive-timeout

拷貝一份給3307，幷打文件里的3306都替換為3307cp??/data/3306/my.cnf??/data/3307/my.cnf

sed?-i?'s/3306/3307/g'?/data/3307/my.cnf

創建Mysql服務啟動腳本vim?/data/3306/mysqld

#!/bin/bash

mysql_port=3306

mysql_username="admin"

mysql_password="password"

function_start_mysql()

{

printf?"Starting?MySQL...\n"

/bin/sh?/usr/local/mysql/bin/mysqld_safe?--defaults-file=/data/${mysql_port}/my.cnf?2>&1?>?/dev/null?&

}

function_stop_mysql()

{

printf?"Stoping?MySQL...\n"

/usr/local/mysql/bin/mysqladmin?-u?${mysql_username}?-p${mysql_password}?-S?/data/${mysql_port}/mysql.sock?shutdown

}

function_restart_mysql()

{

printf?"Restarting?MySQL...\n"

function_stop_mysql

function_start_mysql

}

function_kill_mysql()

{

kill?-9?$(ps?-ef?|?grep?'bin/mysqld_safe'?|?grep?${mysql_port}?|?awk?'{printf?$2}')

kill?-9?$(ps?-ef?|?grep?'libexec/mysqld'?|?grep?${mysql_port}?|?awk?'{printf?$2}')

}

case?$1?in

start)

function_start_mysql;;

stop)

function_stop_mysql;;

kill)

function_kill_mysql;;

restart)

function_stop_mysql

function_start_mysql;;

*)

echo?"Usage:?/data/${mysql_port}/mysqld?{start|stop|restart|kill}";;

esac

拷貝給3307一份啟動腳本，把里面的3306都改為3307，幷賦予啟動權限cp?/data/3306/mysqld?/data/3307/mysqld

sed?-i?'s/3306/3307/g'?/data/3307/mysqld

chmod?+x?/data/3306/mysqld

chmod?+x?/data/3307/mysqld

修改/etc/profile文件，末尾添加PATHPATH=/usr/local/mysql/bin:$PATH

export?PATH

保存修改，讓配置立即生效source?/etc/profile

四，啟動數據庫幷登錄/data/3306/mysqld?start

/data/3307/mysqld?start

mysql?-uroot?-p?-S?/data/3306/mysql.sock

mysql?-uroot?-p?-S?/data/3307/mysql.sock

總結

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