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Linux-MySQL5.7-主从复制架构

2022-05-14 17:01:06  阅读:7  来源: 互联网

标签:10.0 主从复制 data MySQL5.7 Linux Master mysql sec root


实验环境

机器

centos7       地址10.0.0.7      主机名master.org

centso7  地址10.0.0.77    主机名slave.org

已安装MySQL5.7数据库

主从配置

修改主机名区分主次

[root@centos7-liyj ~]#hostnamectl set-hostname master.org
[root@centos7-liyj ~]#exit
logout

Connection closed.

Disconnected from remote host(10.0.0.7) at 15:18:26.

Type `help' to learn how to use Xshell prompt.
[C:\~]$ 
Reconnecting in 1 seconds. Press any key to exit local shell.
.

Connecting to 10.0.0.7:22...
Connection established.
To escape to local shell, press 'Ctrl+Alt+]'.

Last login: Sat May 14 15:08:21 2022 from 10.0.0.1
[root@master ~]#

从节点

[root@centos7-liyj ~]#hostnamectl set-hostname slave.org
[root@centos7-liyj ~]#exit
logout

Connection closed.

Disconnected from remote host(10.0.0.77) at 15:19:40.

Type `help' to learn how to use Xshell prompt.
[C:\~]$ 
Reconnecting in 3 seconds. Press any key to exit local shell.
...

Connecting to 10.0.0.77:22...
Connection established.
To escape tzhujieo local shell, press 'Ctrl+Alt+]'.

Last login: Sat May 14 15:11:21 2022 from 10.0.0.1
[root@slave ~]#

修改master主节点的配置

配置文件修改

server-id=7                          #添加节点全局唯一编号ID,一般为IP地址的最后的地址数 10.0.0.7,防止出现重复ID编号
log-bin=/data/mysql/logbin/mysql-bin #添加二进制日志路径

 

[root@master ~]#vim /etc/my.cnf
[mysqld]
datadir=/data/mysql
skip_name_resolve=1
socket=/data/mysql/mysql.sock
log-error=/data/mysql/mysql.log
pid-file=/data/mysql/mysql.pid

server-id=7                              
log-bin=/data/mysql/logbin/mysql-bin      
[client]
socket=/data/mysql/mysql.sock

创建日志路径

[root@master ~]#mkdir -p /data/mysql/logbin
[root@master /data/mysql]#chown -R mysql.mysql /data/mysql/     #修改文件夹权限,属组属主都是mysql,否则重启数据库服务报错

不修改文件权限报错

[root@master ~]#systemctl restart mysqld
Job for mysqld.service failed because the control process exited with error code. See "systemctl status mysqld.service" and "journalctl -xe" for details.

重启数据库服务

[root@master ~]#systemctl restart mysqld

登录数据库

[root@master ~]#mysql -uroot -p
Enter password: 
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 5
Server version: 5.7.37 Source distribution

Copyright (c) 2000, 2022, Oracle and/or its affiliates.

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> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| performance_schema |
| sys                |
+--------------------+
4 rows in set (0.02 sec)

mysql> 

创建复制用户并授权

mysql> create user  repluser@"10.0.0.%" identified by "123456"   创建用户并给予密码
    -> ;
ERROR 2006 (HY000): MySQL server has gone away
No connection. Trying to reconnect...
Connection id:    2
Current database: *** NONE ***

Query OK, 0 rows affected (0.00 sec)

mysql> grant replication slave on *.* to repluser@"10.0.0.%";      授权用户
Query OK, 0 rows affected (0.00 sec)

修改lave从节点的配置

修改配置文件

[root@slave ~]#vim /etc/my.cnf
[root@slave ~]#cat /etc/my.cnf
[mysqld]
datadir=/data/mysql
skip_name_resolve=1
socket=/data/mysql/mysql.sock        
log-error=/data/mysql/mysql.log
pid-file=/data/mysql/mysql.pid

server-id =77                        #全局唯一ID编号
read-only                 # 只读,不可写
[client]
socket=/data/mysql/mysql.sock
[root@slave ~]# systemctl restart mysqld  #重启
[root@slave ~]#

登录数据 

使用有复制权限的用户账号连接至主服务器,并启动复制线程

mysql> CHANGE MASTER TO
-> MASTER_HOST='10.0.0.7',
-> MASTER_USER='repluser',
-> MASTER_PASSWORD='123456',
-> MASTER_PORT=3306;
Query OK, 0 rows affected, 2 warnings (0.00 sec)

从节点开始复制

mysql> start slave;
Query OK, 0 rows affected (0.00 sec)
mysql> show slave status\G;
*************************** 1. row ***************************
               Slave_IO_State: Waiting for master to send event
                  Master_Host: 10.0.0.7
                  Master_User: repluser
                  Master_Port: 3306
                Connect_Retry: 60
              Master_Log_File: mysql-bin.000001
          Read_Master_Log_Pos: 1245
               Relay_Log_File: slave-relay-bin.000002
                Relay_Log_Pos: 1458
        Relay_Master_Log_File: mysql-bin.000001
             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: 1245
              Relay_Log_Space: 1665
              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: 7
                  Master_UUID: 6eba5dd5-d036-11ec-80f9-0050563aaca0
             Master_Info_File: /data/mysql/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: 
            Executed_Gtid_Set: 
                Auto_Position: 0
         Replicate_Rewrite_DB: 
                 Channel_Name: 
           Master_TLS_Version: 
1 row in set (0.00 sec)

ERROR: 
No query specified
从节点状态

测试主节点创建数据库,从节点查看是否同步

mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| logbin             |
| mysql              |
| performance_schema |
| sys                |
+--------------------+
5 rows in set (0.00 sec)

mysql> create database mydb1;
Query OK, 1 row affected (0.00 sec)

mysql> create database mydb2;
Query OK, 1 row affected (0.00 sec)

mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mydb1              |
| mydb2              |
| mysql              |
| performance_schema |
| sys                |
+--------------------+
6 rows in set (0.00 sec)
mysql> use mydb1;
Database changed
mysql> CREATE TABLE student (
    -> id int UNSIGNED AUTO_INCREMENT PRIMARY KEY,
    -> name VARCHAR(20) NOT NULL,
    -> age tinyint UNSIGNED,
    -> gender ENUM('M','F') default 'M'
    -> )ENGINE=InnoDB AUTO_INCREMENT=10 DEFAULT CHARSET=utf8;
Query OK, 0 rows affected (0.01 sec)

mysql> desc student;
+--------+---------------------+------+-----+---------+----------------+
| Field  | Type                | Null | Key | Default | Extra          |
+--------+---------------------+------+-----+---------+----------------+
| id     | int(10) unsigned    | NO   | PRI | NULL    | auto_increment |
| name   | varchar(20)         | NO   |     | NULL    |                |
| age    | tinyint(3) unsigned | YES  |     | NULL    |                |
| gender | enum('M','F')       | YES  |     | M       |                |
+--------+---------------------+------+-----+---------+----------------+
4 rows in set (0.03 sec)
主创建表student
mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mydb1              |
| mydb2              |
| mysql              |
| performance_schema |
| sys                |
+--------------------+
6 rows in set (0.00 sec)

mysql> use mydb1;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A

Database changed
mysql> desc student;
+--------+---------------------+------+-----+---------+----------------+
| Field  | Type                | Null | Key | Default | Extra          |
+--------+---------------------+------+-----+---------+----------------+
| id     | int(10) unsigned    | NO   | PRI | NULL    | auto_increment |
| name   | varchar(20)         | NO   |     | NULL    |                |
| age    | tinyint(3) unsigned | YES  |     | NULL    |                |
| gender | enum('M','F')       | YES  |     | M       |                |
+--------+---------------------+------+-----+---------+----------------+
4 rows in set (0.00 sec)

mysql> 
从-查看是否同步

 

标签:10.0,主从复制,data,MySQL5.7,Linux,Master,mysql,sec,root
来源: https://www.cnblogs.com/lyj1023/p/16270642.html

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