mysql二进制安装，升级，多实例部署

目标

---

• 理解线上部署考虑的因素
• 学会编译安装以及二进制安装mysql
• 学会升级mysql
• 学会多实例部署mysql数据库
• 学会合理部署mysql线上库

 

考虑因素：

• 版本选择，5.1,5.5还是5.6？
• 分支选择，官方社区版？percona server？mariadb?
• • 推荐官方版，简单易上手
• 安装方式，包安装？二进制包安装？源码安装？
• • 线上推荐二进制包安装
• 路径配置，参数配置（尽量模板化，标准化）
• 一个实例多个库，or多个实例单个库？

 

二进制安装mysql

---

 

1. 下载软件安装包
2. 解压放到指定目录（比如/usr/local）并将mysql目录放到PATH中
3. 初始化实例，编辑配置文件 并启动
4. 账号安全设置

 

 

1)下载

mysql-5.5.50-linux2.6-i686

 

2)解压到指定目录，并将mysql目录放到PATH中

 

#tar -zxf mysql-5.5.50-linux2.6-i686.tar.gz
#mv mysql-5.5.50-linux2.6-i686  /usr/local/
#cd /usr/local
#mv mysql-5.5.50-linux2.6-i686 mysql55
#cd mysql55/bin
#export PATH=/usr/local/mysql55/bin:$PATH

 

3)初始化实例 使用脚本mysql_install_db

 

#mkdir -p /tmp/mysqldata/node1
#/usr/local/mysql55/script/mysql_install_db --user=mysql --basedir=/usr/local/mysql55 --datadir=/tmp/mysqldata/node1
#cd /tmp/mysqldata/node1

 

出现问题1 没有libaio.so.1库

/tmp/mysql55/bin/mysqld: error while loading shared libraries: libaio.so.1: cannot open shared object file: No such file or directory

 

解决：查询libaio库并按照libaio.so.1

查询

aiapple@aiapple:/tmp$ sudo apt-cache search libaio
libaio-dev - Linux kernel AIO access library - development files
libaio1 - Linux kernel AIO access library - shared library
libaio1-dbg - Linux kernel AIO access library - debugging symbols

安装

aiapple@aiapple:/tmp$ sudo apt-get install libaio1

 

初始化成功：

aiapple@aiapple:/usr/local/mysql/data$ ls -l /tmp/mysqldata/node1/
total 12
drwx------ 2 aiapple aiapple 4096  7月 27 21:27 mysql
drwx------ 2 aiapple aiapple 4096  7月 27 21:27 performance_schema
drwx------ 2 aiapple aiapple 4096  7月 27 21:25 test

 

拷贝配置文件：support-files中拷贝my-medium.cnf

cp /usr/local/mysql56/support-files/my-medium.cnf /tmp/mysqldata

 

3)使用mysqld_safe脚本，启动

/usr/local/mysql55/bin/mysqld_safe --defaults-file=/tmp/mysqldata/my.cnf &

 

问题2：没有/usr/local/mysql/data 目录

aiapple@aiapple:/usr/local/mysql55/support-files$ /usr/local/mysql55/bin/mysqld_safe --defaults-file=/tmp/mysqldata/my.cnf &
[1] 3349
aiapple@aiapple:/usr/local/mysql55/support-files$ 160727 21:33:26 mysqld_safe Logging to '/usr/local/mysql/data/aiapple.err'.
touch: cannot touch ‘/usr/local/mysql/data/aiapple.err’: No such file or directory
chmod: cannot access ‘/usr/local/mysql/data/aiapple.err’: No such file or directory
160727 21:33:26 mysqld_safe The file /usr/local/mysql/bin/mysqld
does not exist or is not executable. Please cd to the mysql installation
directory and restart this script from there as follows:
./bin/mysqld_safe&
See http://dev.mysql.com/doc/mysql/en/mysqld-safe.html for more information
/usr/local/mysql55/bin/mysqld_safe: 128: /usr/local/mysql55/bin/mysqld_safe: cannot create /usr/local/mysql/data/aiapple.err: Directory nonexistent
^C
[1]+  Exit 1                  /usr/local/mysql55/bin/mysqld_safe --defaults-file=/tmp/mysqldata/my.cnf

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