mysql多实例

Posted 2020-08-03

一、安装环境

    操作系统：CentOS release 6.6 (Final)（最小化安装）

    mysql版本：mysql-5.5.32.tar.gz

    cmake版本：cmake-2.8.7.tar.gz

二、安装基本依赖包

    首先将yum源更改为国内的阿里yum源

    [[email protected] ~]# yum install wget -y

    [[email protected] ~]# wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repo

    [[email protected] ~]# cd /etc/yum.repos.d

    [[email protected] yum.repos.d]# yum makecache

    安装基本包以及必备依赖包

    [[email protected] ~]# yum install make gcc vim lrzsz tree ncurses-devel libaio-devel qt* -y

三、源码编译安装cmake和mysql

    首先创建存放源码包的文件夹，养成良好的运维习惯

    [[email protected] ~]# mkdir /server/tools -p

    [[email protected] ~]# cd /server/tools

    

    我是在真机上将源码包下载下来，然后通过rz上传到服务器指定存放目录。（secureCRT和Xshell均支持本地和远程服务器的上传和下载）

    [[email protected] tools]# rz

    

    

    解压cmake

    [[email protected] tools]# tar -zxvf cmake-2.8.7.tar.gz 

    [[email protected] tools]# cd cmake-2.8.7

    编译cmake

    [[email protected] cmake-2.8.7]# ./configure

    安装cmake

    

    [[email protected] cmake-2.8.7]# gmake && gmake install

    解压mysql

    [[email protected] tools]# tar -zxvf mysql-5.5.32.tar.gz

    [[email protected] tools]# cd mysql-5.5.32

    创建mysql用户

   

    [[email protected] mysql-5.5.32]# groupadd mysql

    [[email protected] mysql-5.5.32]# useradd -g mysql -s /sbin/nologin -M mysql

    编译mysql

    [[email protected] mysql-5.5.32]# mkdir /application -p

    cmake -DCMAKE_INSTALL_PREFIX=/application/mysql-5.5.32 -DMYSQL_DATADIR=/application/mysql-5.5.32/data -DMYSQL_UNIX_ADDR=/application/mysql-5.5.32/tmp/mysql.sock -DEXTRA_CHARSETS=gbk.gb2312.utf8.ascii -DENABLED_LOCAL_INFILE=ON -DWITH_INNOBASE_STORAGE_ENGINE=1 -DWITH_FEDERATED_STORAGE_ENGINE=1 -DWITH_BLACKHOLE_STORAGE_ENGINE=1 -DWITHOUT_EXAMPLE_STORAGE_ENGINE=1 -DWITHOUT_PARTITION_STORAGE_ENGINE=1 -DWITH_FAST_MUTEXES=1 -DWITH_ZLIB=bundled -DENABLED_LOCAL_INFILE=1 -DWITH_READLINE=1 -DWITH_EMBEDDED_SERVER=1 -DWITH_DEBUG=0

    安装mysql

    [[email protected] mysql-5.5.32]# make && make install

四、复制my.cnf

    [[email protected] mysql-5.5.32]# cp /server/tools/mysql-5.5.32/support-files/my-small.cnf /etc/my.cnf

五、软链接以及环境变量配置

    [[email protected] mysql-5.5.32]# ln -s /application/mysql-5.5.32/ /application/mysql

    [[email protected] mysql-5.5.32]# echo ‘PATH=/application/mysql/bin:$PATH‘ >>/etc/profile

    [[email protected] mysql-5.5.32]# source /etc/profile

六、授权

    [[email protected] mysql-5.5.32]# chown -R mysql.mysql /application/mysql/data/

    [[email protected] mysql-5.5.32]# chmod -R 1777 /tmp/

七、创建mysql多实例的数据文件目录

    [[email protected] mysql-5.5.32]# mkdir -p /data/{3306,3307}/data

    [[email protected] mysql-5.5.32]# tree /data

    

八、创建mysql实例的配置文件my.cnf

    [[email protected] 3306]# cp /server/tools/mysql-5.5.32/support-files/my-small.cnf my.cnf

    [[email protected] 3307]# vim my.cnf

    可以根据自己的需要对配置文件做设置（附件中有my.cnf）

    [[email protected] 3306]# cp my.cnf /data/3307/

    [[email protected] 3307]# sed -i ‘s#3306#3307#g‘ my.cnf

    [[email protected] 3307]# vim my.cnf

        将server-id改成3

    [[email protected] 3307]# chown -R mysql.mysql /data/

九、初始化数据库

    [[email protected] 3306]# cd /application/mysql/scripts/

    [[email protected] scripts]# ./mysql_install_db --basedir=/application/mysql --datadir=/data/3306/data --user=mysql

    [[email protected] scripts]# ./mysql_install_db --basedir=/application/mysql --datadir=/data/3307/data --user=mysql

    看见两个OK就成功啦！

十、启动mysql多实例

    [[email protected] scripts]# mysqld_safe --defaults-file=/data/3306/my.cnf 2>&1 > /dev/null &

    [[email protected] scripts]# mysqld_safe --defaults-file=/data/3307/my.cnf 2>&1 > /dev/null &

    可以自己编写mysql启动脚本（附件中有mysql启动脚本）

    查看下mysql多实例是否生效，即查看3306和3307是否开启

    [[email protected] scripts]# ss -ntulp|grep 330

    

    

十一、mysql启动脚本启动mysql

    [[email protected] 3306]# chown mysql:mysql mysql

    [[email protected] 3307]# chown mysql:mysql mysql

    [[email protected] 3306]# chmod u+x mysql

    [[email protected] 3307]# chmod u+x mysql

    [[email protected] 3306]# /data/3306/mysql start

    [[email protected] 3306]# /data/3307/mysql start

    

    

    [[email protected] 3306]# ss -ntulp|grep 330

    tcp    LISTEN     0      128                    *:3306                  *:*      users:    (("mysqld",68932,13))

    tcp    LISTEN     0      128                    *:3307                  *:*      users:    (("mysqld",69710,13))

 十二、多实例进入mysql配置

    [[email protected] ~]# mysqladmin password oldboy123 -S /data/3306/mysql.sock

    [[email protected] ~]# mysqladmin password oldboy456 -S /data/3307/mysql.sock

    进入mysql

    

    [[email protected] ~]# mysql -uroot -poldboy123 -S /data/3306/mysql.sock

    

    [[email protected] ~]# mysql -uroot -poldboy456 -S /data/3307/mysql.sock

    

    mysql> show databases;

    +--------------------+

    | Database           |

    +--------------------+

    | information_schema |

    | mysql              |

    | performance_schema |

    | test               |

    +--------------------+

    4 rows in set (0.00 sec)

    

    mysql> select user,host from mysql.user;

    +------+--------------------+

    | user | host               |

    +------+--------------------+

    | root | 127.0.0.1          |

    | root | ::1                |

    | root | localhost          |

    |      | oldboy.example.com |

    | root | oldboy.example.com |

    +------+--------------------+

    5 rows in set (0.00 sec)

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