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
主
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)
从
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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