主数据库(1号机器)
数据库创建基本环境数据
mysql> create database a; //创建数据库a
mysql> create table a.a (id int); //创建列表a
mysql> insert into a.a values (1); //添加数据1
mysql> select * from a.a; //查看数据
+------+
| id |
+------+
| 1 |
+------+
1 row in set (0.00 sec)
开启二进制文件
echo -e 'log_bin\nserver-id=3' >> /etc/my.cnf
创建一个复制的授权用户
grant replication slave, replication client on *.* to 'rep'@'192.168.139.%' identified by 'QianFeng@123';
查看主数据库存储位置
mysql> show master status\G
*************************** 1. row ***************************
File: MYSQL-bin.000005 //master_log_pos=889
Position: 889 //master_log_file='MYSQL-bin.000005'
Binlog_Do_DB:
Binlog_Ignore_DB:
Executed_Gtid_Set:
1 row in set (0.00 sec)
将主数据库整个数据库备份
mysqldump -p'QianFeng@123' --all-databases --single-transaction --master-data=2 --flush-logs > `date +%F`-mysql-all.sql
将备份文件发送给从数据库
scp 2019-10-04-mysql-all.sql master2:/tmp/
查看当前备份到哪个点
sed -n '22p' 备份的文件名
-- CHANGE MASTER TO MASTER_LOG_FILE='MYSQL-bin.000004', MASTER_LOG_POS=154;
模拟增加数据
insert into a.a values (2);
查看当前用户在本数据库的权限
show grants;
从数据库(2号机器)
用新授权的账号测试是否能连接主数据库
目的是为了测试这个用户是否可以登陆，为后面复制做准备
mysql -hmaster1 -urep -p'QianFeng@123'
登陆自己的数据库进行数据导入
mysql -uroot -p'QianFeng@123'
临时关闭二进制文件
mysql> set sql_log_bin=0;
导入主数据库的二进制文件
mysql> source /tmp/2019-10-04-mysql-all.sql;
复制连接主数据库
mysql> change master to
master_host='master1',
master_user='rep',
master_password='QianFeng@123';
master_log_file='MYSQL-bin.000004'
master_log_pos=154;
启动从设备
mysql> start slave;
查看启动状态
mysql> show slave status\G
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: master1
Master_User: rep
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: MYSQL-bin.000005
Read_Master_Log_Pos: 1134
Relay_Log_File: web3-relay-bin.000003
Relay_Log_Pos: 1301
Relay_Master_Log_File: MYSQL-bin.000005
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: 1134
Relay_Log_Space: 1508
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: 196f050b-e631-11e9-88d1-000c29ea4f01
Master_Info_File: mysql.slave_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:
Master_public_key_path:
Get_master_public_key: 0
1 row in set (0.01 sec)
至此部署完成
查看测试结果
主数据库插入新的数据
mysql> insert into a.a values (10);
Query OK, 1 row affected (0.00 sec)
mysql> select * from a.a;
+------+
| id |
+------+
| 1 |
| 10 |
+------+
2 rows in set (0.01 sec)
在从数据库上查看是否更新成功
mysql> select * from a.a;
+------+
| id |
+------+
| 1 |
| 10 |
+------+
2 rows in set (0.01 sec)
