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
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 status\G;
*************************** 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。

MySQL 5.7.29主从安装配置

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