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1. 安裝mysql-5.5的yum源
1 | # rpm -ivh http://repo./yum/mysql-5.5-community/el/6/x86_64/mysql-community-release-el6-5.noarch.rpm
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安裝MySQL5.6的可以安裝：
1 | # rpm -ivh http://repo./mysql-community-release-el6.rpm
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最新的yum源可以去http://dev./downloads/repo/yum下載
2. 修改安裝好的yum源
編輯 /etc/yum.repos.d/mysql-community.repo文件，將5.5的enabled改為1；5.6的enabled改為0
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 | [root@localhost yum.repos.d]# vim mysql-community.repo
# Enable to use MySQL 5.5
[mysql55-community]
name=MySQL 5.5 Community Server
baseurl=http://repo./yum/mysql-5.5-community/el/6/$basearch/
enabled=1
gpgcheck=1
gpgkey=file:/etc/pki/rpm-gpg/RPM-GPG-KEY-mysql
# Enable to use MySQL 5.6
[mysql56-community]
name=MySQL 5.6 Community Server
baseurl=http://repo./yum/mysql-5.6-community/el/6/$basearch/
enabled=0
gpgcheck=1
gpgkey=file:/etc/pki/rpm-gpg/RPM-GPG-KEY-mysql
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3.安裝mysql-5.5
1 | # yum -y install mysql-community-client mysql-community-devel mysql-community-server php-mysql
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4. 調(diào)整配置
1 2 3 | [root@localhost yum.repos.d]# vim /etc/my.cnf<br>#在[mysqld]下添加
innodb_file_per_table=1 設(shè)置InnoDB為獨立表空間模式，每個數(shù)據(jù)庫的每個表都會生成一個數(shù)據(jù)目錄
innodb_buffer_pool_size= 默認(rèn)值：128M，設(shè)置為操作系統(tǒng)內(nèi)存的70%-80%最佳
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5. 啟動mysql，查看mysql版本
1 2 3 4 | [root@localhost yum.repos.d]# service mysqld start
Starting mysqld: [ OK ]
[root@localhost yum.repos.d]# mysql --version
mysql Ver 14.14 Distrib 5.5.58, for Linux (x86_64) using readline 5.1
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