centos6.7安装mysql5.5.48的方法
<p>本文实例讲述了centos6.7安装mysql5.5.48的方法。分享给大家供大家参考，具体如下：</p>
<p>
<strong>RPM安装mysql 5.5.48</strong></p>
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下载对应的MySQL安装包rpm文件，可以去MySQL官方网站找到对应版本，一般需要下载3个文件</p>
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<span><strong>MySQL-server<br>
MySQL-client<br>
MySQL-devel</strong></span></p>
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</p>
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<span><u>复制代码</u></span> 代码如下:</div>
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wget http://dev.mysql.com/get/Downloads/MySQL-5.5/MySQL-server-5.5.48-1.el6.x86_64.rpm<br>
wget http://dev.mysql.com/get/Downloads/MySQL-5.5/MySQL-client-5.5.48-1.el6.x86_64.rpm<br>
wget http://dev.mysql.com/get/Downloads/MySQL-5.5/MySQL-devel-5.5.48-1.el6.x86_64.rpm<br>
rpm -ivh MySQL-server-5.5.48-1.el6.x86_64.rpm<br>
rpm -ivh MySQL-client-5.5.48-1.el6.x86_64.rpm<br>
rpm -ivh MySQL-devel-5.5.48-1.el6.x86_64.rpm</div>
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<br>
安装服务端出错：</p>
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<span><u>复制代码</u></span> 代码如下:</div>
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# rpm -ivh MySQL-server-5.5.48-1.el6.x86_64.rpm<br>
warning: MySQL-server-5.5.48-1.el6.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY<br>
Preparing... ########################################### <br>
file /usr/share/mysql/charsets/Index.xml from install of MySQL-server-5.5.48-1.el6.x86_64 conflicts with file from package mysql-libs-5.1.73-5.el6_6.x86_64<br>
file /usr/share/mysql/charsets/armscii8.xml from install of MySQL-server-5.5.48-1.el6.x86_64 conflicts with file from package mysql-libs-5.1.73-5.el6_6.x86_64<br>
file /usr/share/mysql/charsets/ascii.xml from install of MySQL-server-5.5.48-1.el6.x86_64 conflicts with file from package mysql-libs-5.1.73-5.el6_6.x86_64<br>
file /usr/share/mysql/charsets/cp1250.xml from install of MySQL-server-5.5.48-1.el6.x86_64 conflicts with file from package mysql-libs-5.1.73-5.el6_6.x86_64<br>
file /usr/share/mysql/charsets/cp1256.xml from install of MySQL-server-5.5.48-1.el6.x86_64 conflicts with file from package mysql-libs-5.1.73-5.el6_6.x86_64</div>
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</p>
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错误原因：包冲突了</p>
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centos6.7 basic server 版本 默认安装了mysql5.1，所以先卸载mysql5.1</p>
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<span><u>复制代码</u></span> 代码如下:</div>
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yum -y remove mysql-libs-5.1*</div>
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<br>
再重新安装即可</p>
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<span><u>复制代码</u></span> 代码如下:</div>
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rpm -ivh MySQL-server-5.5.48-1.el6.x86_64.rpm</div>
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<br>
启动mysql</p>
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<span><u>复制代码</u></span> 代码如下:</div>
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# service mysql start<br>
Starting MySQL SUCCESS!</div>
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<br><strong>CentOS下安装官方RPM包的MySQL后找不到my.cnf解决办法</strong></p>
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</p>
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复制 /usr/share/mysql/my-medium.cnf 文件到/etc目录，</p>
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<span><u>复制代码</u></span> 代码如下:</div>
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cp /usr/share/mysql/my-medium.cnf /etc/my.cnf</div>
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<br><strong>局域网内mysql连接慢的解决办法</strong></p>
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</p>
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ping都很快，mysql连接慢，</p>
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原因是由于mysql对连接的客户端进行DNS反向解析。</p>
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有2种解决办法：</p>
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1. 把client的ip写在mysql服务器的/etc/hosts文件里，随便给个名字就可以了。<br>
2. 在 my.cnf 中加入 –skip-name-resolve 。</p>
<p>
希望本文所述对大家centos服务器配置有所帮助。</p>
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