MySQL 5.7.29主从安装配置

一、环境准备（关闭防火墙）

1、清除已安装数据库

[root@mysql01 ~]# rpm -qa | grep mariadb

mariadb-libs-5.5.35-3.el7.x86_64

[root@mysql01 ~]# yum remove mariadb-libs-5.5.35-3.el7.x86_64

 

2、安装libaio-devel包

挂载光盘

配置yum仓库

[root@mysql01 yum.repos.d]# mount /dev/sr0 /mnt

[root@mysql01 yum.repos.d]# yum clean all

[root@mysql01 yum.repos.d]# yum repolist all

[root@mysql01 yum.repos.d]# yum intall -y libaio-devel

 

3、创建用户及用户密码

[root@mysql01 ~]# groupadd mysql

[root@mysql01 ~]# useradd -g mysql mysql

[root@mysql01 ~]# passwd mysql

Changing password for user mysql.

New password:

BAD PASSWORD: The password is shorter than 8 characters

Retype new password:

passwd: all authentication tokens updated successfully.

 

4、创建数据目录、日志目录，并修改目录所有者所属组

[root@mysql01 ~]# mkdir -p /data/3306/data

[root@mysql01 ~]# mkdir -p /data/3306/binlog

[root@mysql01 yum.repos.d]# chown -R mysql.mysql /data*

 

二、上传MySQL数据库安装包并解压

[root@mysql01 stage]# ll

-rw-r--r--. 1 root root   664749587 Jun  9 20:46 mysql-5.7.29-linux-glibc2.12-x86_64.tar.gz

[root@mysql01 stage]# gunzip mysql-5.7.29-linux-glibc2.12-x86_64.tar.gz

[root@mysql01 stage]# ll

-rw-r--r--. 1 root root  2648074240 Jun  9 20:46 mysql-5.7.29-linux-glibc2.12-x86_64.tar

[root@mysql01 stage]# tar -xvf mysql-5.7.29-linux-glibc2.12-x86_64.tar

[root@mysql01 stage]# ll

drwxr-xr-x. 9 root root        4096 Jun  9 21:15 mysql-5.7.29-linux-glibc2.12-x86_64

-rw-r--r--. 1 root root  2648074240 Jun  9 20:46 mysql-5.7.29-linux-glibc2.12-x86_64.tar

 

三、创建软连接，并修改数据库安装目录所有者所属组

[root@mysql01 stage]# ln -s /stage/mysql-5.7.29-linux-glibc2.12-x86_64 /usr/local/mysql

[root@mysql01 stage]# ll /usr/local/

total 0

drwxr-xr-x. 2 root root  6 Mar 13  2014 bin

drwxr-xr-x. 2 root root  6 Mar 13  2014 etc

drwxr-xr-x. 2 root root  6 Mar 13  2014 games

drwxr-xr-x. 2 root root  6 Mar 13  2014 include

drwxr-xr-x. 2 root root  6 Mar 13  2014 lib

drwxr-xr-x. 2 root root  6 Mar 13  2014 lib64

drwxr-xr-x. 2 root root  6 Mar 13  2014 libexec

lrwxrwxrwx. 1 root root 42 Jun  9 21:17 mysql -> /stage/mysql-5.7.29-linux-glibc2.12-x86_64

drwxr-xr-x. 2 root root  6 Mar 13  2014 sbin

drwxr-xr-x. 5 root root 46 Mar 19  2019 share

drwxr-xr-x. 2 root root  6 Mar 13  2014 src

[root@mysql01 stage]# ll /usr/local/mysql/

total 292

drwxr-xr-x.  2 root root    4096 Jun  9 21:15 bin

drwxr-xr-x.  2 root root      52 Jun  9 21:15 docs

drwxr-xr-x.  3 root root    4096 Jun  9 21:15 include

drwxr-xr-x.  5 root root    4096 Jun  9 21:15 lib

-rw-r--r--.  1 7161 31415 276202 Dec 18 20:59 LICENSE

drwxr-xr-x.  4 root root      28 Jun  9 21:15 man

-rw-r--r--.  1 7161 31415    587 Dec 18 20:59 README

drwxr-xr-x. 28 root root    4096 Jun  9 21:15 share

drwxr-xr-x.  2 root root      86 Jun  9 21:15 support-files

 

四、修改环境变量并生效

[root@mysql01 stage]# vi /etc/profile

在文件末尾追加：

export PATH=/usr/local/mysql/bin:$PATH

[root@mysql01 stage]# source /etc/profile

[root@mysql01 stage]# mysql -V

mysql  Ver 14.14 Distrib 5.7.29, for linux-glibc2.12 (x86_64) using  EditLine wrapper

 

五、初始化

[root@mysql01 stage]# mysqld --initialize-insecure --user=mysql --basedir=/usr/local/mysql --datadir=/data/3306/data

 

六、编辑my.cnf参数文件

[root@mysql01 stage]# vi /etc/my3306.cnf

[mysqld]

user=mysql

basedir=/usr/local/mysql

datadir=/data/3306/data

log_bin=/data/3306/binlog/mysql-bin

port=3306

server_id=1

socket=/tmp/mysql.sock

[mysql]

socket=/tmp/mysql.sock

 

七、启动数据库

[root@mysql01 stage]# mysqld_safe --defaults-file=/etc/my3306.cnf &

 

八、登陆数据库

[root@mysql01 stage]# mysql

Welcome to the MySQL monitor.  Commands end with ; or g.

Your MySQL connection id is 2

Server version: 5.7.29-log MySQL Community Server (GPL)

 

Copyright (c) 2000, 2020, Oracle and/or its affiliates. All rights reserved.

 

Oracle is a registered trademark of Oracle Corporation and/or its

affiliates. Other names may be trademarks of their respective

owners.

 

Type 'help;' or 'h' for help. Type 'c' to clear the current input statement.

 

mysql>

 

九、修改用户密码

alter user 'root'@'localhost' identified by 'mysql';

 

十、同上，搭建从库

从库参数文件如下：

[mysqld]

user=mysql

basedir=/usr/local/mysql

datadir=/data/3307/data

log_bin=/data/3307/binlog

port=3307

server_id=2

socket=/tmp/mysql.sock

[mysql]

socket=/tmp/mysql.sock

 

十一、主从配置

1、主从库开启gtid功能

[root@mysql01 stage]# vi /etc/my3306.cnf

gtid_mode=ON

enforce_gtid_consistency=ON

log_slave_updates=1

 

[root@mysql02 stage]# vi /etc/my3307.cnf

gtid_mode=ON

enforce_gtid_consistency=ON

log_slave_updates=1

 

2、重启主从数据库使参数生效

[root@mysql01 stage]# mysqladmin shutdown

[root@mysql01 stage]# mysqld_safe --defaults-file=/etc/my3306.cnf &

 

[root@mysql02 stage]# mysqladmin shutdown

[root@mysql02 stage]# mysqld_safe --defaults-file=/etc/my3307.cnf &

 

3、确认主从数据库binlog已开启

mysql> select @@log_bin;

+-----------+

| @@log_bin |

+-----------+

|         1 |

+-----------+

1 row in set (0.00 sec)

 

4、主库创建复制用户

mysql> grant replication slave on *.* to 'repl'@'192.168.12.%' identified by 'mysql';

 

5、从库启动复制

CHANGE MASTER TO

MASTER_HOST='192.168.12.60',

MASTER_USER='repl',

MASTER_PASSWORD='mysql',

MASTER_PORT=3306,

MASTER_AUTO_POSITION=1;

 

mysql> start slave;

 

6、查看从库状态

mysql> show slave statusG;

*************************** 1. row ***************************

               Slave_IO_State: Waiting for master to send event

                  Master_Host: 192.168.12.60

                  Master_User: repl

                  Master_Port: 3306

                Connect_Retry: 60

              Master_Log_File: binlog.000002

          Read_Master_Log_Pos: 448

               Relay_Log_File: mysql02-relay-bin.000002

                Relay_Log_Pos: 655

        Relay_Master_Log_File: binlog.000002

             Slave_IO_Running: Yes

            Slave_SQL_Running: Yes

              Replicate_Do_DB:

          Replicate_Ignore_DB:

           Replicate_Do_Table:

       Replicate_Ignore_Table:

      Replicate_Wild_Do_Table:

  Replicate_Wild_Ignore_Table:

                   Last_Errno: 0

                   Last_Error:

                 Skip_Counter: 0

          Exec_Master_Log_Pos: 448

              Relay_Log_Space: 864

              Until_Condition: None

               Until_Log_File:

                Until_Log_Pos: 0

           Master_SSL_Allowed: No

           Master_SSL_CA_File:

           Master_SSL_CA_Path:

              Master_SSL_Cert:

            Master_SSL_Cipher:

               Master_SSL_Key:

        Seconds_Behind_Master: 0

Master_SSL_Verify_Server_Cert: No

                Last_IO_Errno: 0

                Last_IO_Error:

               Last_SQL_Errno: 0

               Last_SQL_Error:

  Replicate_Ignore_Server_Ids:

             Master_Server_Id: 1

                  Master_UUID: 86b0307f-aa58-11ea-a834-005056395a48

             Master_Info_File: /data/3307/data/master.info

                    SQL_Delay: 0

          SQL_Remaining_Delay: NULL

      Slave_SQL_Running_State: Slave has read all relay log; waiting for more updates

           Master_Retry_Count: 86400

                  Master_Bind:

      Last_IO_Error_Timestamp:

     Last_SQL_Error_Timestamp:

               Master_SSL_Crl:

           Master_SSL_Crlpath:

           Retrieved_Gtid_Set: 86b0307f-aa58-11ea-a834-005056395a48:1

            Executed_Gtid_Set: 86b0307f-aa58-11ea-a834-005056395a48:1

                Auto_Position: 1

         Replicate_Rewrite_DB:

                 Channel_Name:

           Master_TLS_Version:

1 row in set (0.00 sec)

 

自此，MySQL 5.7.29主从配置完成。