主從配置-Mysql5.7-Centos
有段時間沒看看自己服務器了，好多命令忘記了，甚至差點忘記密碼。查了一些博客，又重新學習了下。
主機
-
創建特定權限用戶，供從機使用。
-
create user ‘yourname’@‘network’ identified by ‘yourpassword’;因爲我只有兩臺服務器，所以，只設置了一個特定IP。如果想讓所有的IP都可以使用的話，使用%解決。
-
創建密碼的時候，注意密碼強度，大小寫以及特殊符號，不然會報錯。
mysql> create user 'yang'@192.1681.252' identified by 'yang';
ERROR 1819 (HY000): Your password does not satisfy the current policy requirements
mysql> create user 'yang'@'192.168.1.252' idetified by 'yangF@22069';
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'idetified by 'yangF@22069'' at line 1
mysql> create user 'yang'@'192.1681.252' identified by 'yangF@22069';
Query OK, 0 rows affected (0.01 sec)
- 創建完之後可以測試一下，登陸進去，使用從機服務器登錄試試。
- 遠程登錄命令：mysql -u yourusername -h yourmasterhostIP
[root@izwz97473w2ydu1pgsmzk4z ~]# mysql -u yang -h 192.168.3.141
ERROR 1045 (28000): Access denied for user 'yang'@'192.1681.252' (using password: NO)
[root@izwz97473w2ydu1pgsmzk4z ~]# mysql -u yang -h 192.168.3.141-p yangF@22069
Enter password:
ERROR 1044 (42000): Access denied for user 'yang'@'192.1681.252' to database 'yangF@22069'
[root@izwz97473w2ydu1pgsmzk4z ~]# mysql -u yang -h 192.168.3.141-p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 9
Server version: 5.7.25-log MySQL Community Server (GPL)
Copyright (c) 2000, 2019, 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> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
+--------------------+
1 row in set (0.01 sec)
mysql> quit
Bye
- 在主機上給你新創建的用戶賦予權限。我這裏是所有權限。
- 命令：grant all privileges on . to ‘yang’@‘192.1681.252’ identified by ‘yangF@22069’;
mysql> grant all privileges on . to 'yang'@'192.168.1.252' identified by 'yangF@220695';
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'to 'yang'@'192.1681.252' identified by 'yangF@220695'' at line 1
mysql> grant all privileges on . to 'yang'@'192.168.1.252' identified by 'yangF@22069';
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'to 'yang'@'192.1681.252' identified by 'yangF@22069'' at line 1
mysql> grant all privileges on *.* to 'yang'@'192.168.1.252' identified by 'yangF@22069';
Query OK, 0 rows affected, 1 warning (0.01 sec)
2653755.png)
- 接下來是最重要的一部分，也就是核心部分，配置文件。
- 這篇博客有很詳細的講解：https://blog.csdn.net/chenyiming2010/article/details/81840569
- https://www.jianshu.com/p/3dde1ae6c81f
- 開啓二進制文件
# changes to the binary log between backups.
server_id=401
log_bin=mysql_bin
#read_only=1
#master_info_repository=TABLE
#relay_log_info_repository=TABLE
log_slave_updates=true
#binlog-do-db=database_name;要同步的數據庫名稱
#下面是不給從機同步的庫
bin-ignore-db=mysql
bin-ignore-db=information_schema
bin-ignore-db=performance_schema
bin-ignore-db=sys
#自動清理7天前的文件
expire_logs_days=7
# log_bin
- 查看命令：show variables like ‘%log_bin%’;
- 從機登錄查看：
- 主機sql文件導出：
- Mysqldump -u yourname -p dbname > /目錄/文件名
[root@VM_0_6_centos sqlFile]# mysqldump -u root -p jol > /home/jol.sql Enter password: [root@VM_0_6_centos sqlFile]#
mysql> show tables;
ERROR 1046 (3D000): No database selected
mysql> show databeses;
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'databeses' at line 1
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| bim |
| cross_border |
| jol |
| mysql |
| oj |
| performance_schema |
| sys |
+--------------------+
8 rows in set (0.00 sec)
mysql>
mysql> use jol;
Database changed
mysql> source jol.sql;
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected, 1 warning (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.01 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected, 1 warning (0.00 sec)
Query OK, 0 rows affected, 6 warnings (0.00 sec)
Query OK, 0 rows affected, 1 warning (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.01 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected, 1 warning (0.00 sec)
Query OK, 0 rows affected, 2 warnings (0.01 sec)
Query OK, 0 rows affected, 1 warning (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.01 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.01 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected, 1 warning (0.00 sec)
Query OK, 0 rows affected, 4 warnings (0.00 sec)
Query OK, 0 rows affected, 1 warning (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.01 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.01 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected, 1 warning (0.00 sec)
Query OK, 0 rows affected, 6 warnings (0.00 sec)
Query OK, 0 rows affected, 1 warning (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.01 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected, 1 warning (0.00 sec)
Query OK, 0 rows affected, 2 warnings (0.01 sec)
Query OK, 0 rows affected, 1 warning (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.01 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected, 1 warning (0.00 sec)
Query OK, 0 rows affected, 4 warnings (0.02 sec)
Query OK, 0 rows affected, 1 warning (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 6 rows affected (0.01 sec)
Records: 6 Duplicates: 0 Warnings: 0
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected, 1 warning (0.00 sec)
Query OK, 0 rows affected, 1 warning (0.02 sec)
Query OK, 0 rows affected, 1 warning (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.01 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected, 1 warning (0.00 sec)
Query OK, 0 rows affected, 4 warnings (0.00 sec)
Query OK, 0 rows affected, 1 warning (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.01 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected, 1 warning (0.00 sec)
Query OK, 0 rows affected, 3 warnings (0.01 sec)
Query OK, 0 rows affected, 1 warning (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.01 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected, 1 warning (0.00 sec)
Query OK, 0 rows affected, 9 warnings (0.01 sec)
Query OK, 0 rows affected, 1 warning (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected, 1 warning (0.00 sec)
Query OK, 0 rows affected, 3 warnings (0.01 sec)
Query OK, 0 rows affected, 1 warning (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.01 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected, 1 warning (0.00 sec)
Query OK, 0 rows affected, 1 warning (0.01 sec)
Query OK, 0 rows affected, 1 warning (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.01 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected, 1 warning (0.00 sec)
Query OK, 0 rows affected, 7 warnings (0.01 sec)
Query OK, 0 rows affected, 1 warning (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.01 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected, 1 warning (0.00 sec)
Query OK, 0 rows affected, 4 warnings (0.00 sec)
Query OK, 0 rows affected, 1 warning (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.01 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.01 sec)
Query OK, 0 rows affected, 1 warning (0.00 sec)
Query OK, 0 rows affected, 2 warnings (0.00 sec)
Query OK, 0 rows affected, 1 warning (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.01 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected, 1 warning (0.00 sec)
Query OK, 0 rows affected, 8 warnings (0.01 sec)
Query OK, 0 rows affected, 1 warning (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.01 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected, 1 warning (0.00 sec)
Query OK, 0 rows affected, 4 warnings (0.01 sec)
Query OK, 0 rows affected, 1 warning (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
mysql> change master to master_host='192.168.3.141',master_port='3306',master_user='yang', master_password='yangF@22069', master_log_file='mysql_bin.000001',master_log_pos='1005';
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ''3306',master_user='yang', master_password='yangF@22069', master_log_file='my' at line 1
mysql> change master to master_host='192.168.3.141',master_port=3306,master_user='yang', master_password='yangF@22069', master_log_file='mysql_bin.000001',master_log_pos='1005';
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ''1005'' at line 1
mysql> change master to master_host='192.168.3.141',master_port=3306,master_user='yang', master_password='yangF@22069', master_log_file='mysql_bin.000001',master_log_pos=1005;
Query OK, 0 rows affected, 2 warnings (0.03 sec)
mysql>
在從機/etc/my.cnf文件加上下面配置
server-id=234
#加上以下參數，避免更新不及時
read-only=1
master-info-repository=TABLE
relay_log_info_repository=TABLE
- mysql> change master to master_host=‘192.168.80.30’,master_user=‘myslave’,master_password=‘123456’,master_log_file=‘master_bin.000001’,master_log_pos=603;
https://www.cnblogs.com/qianzf/p/7103614.html
mysql> show slave status\G
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.3.141
Master_User: yang
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql_bin.000001
Read_Master_Log_Pos: 1296
Relay_Log_File: izwz97473w2ydu1pgsmzk4z-relay-bin.000003
Relay_Log_Pos: 612
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: 1296
Relay_Log_Space: 838
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: 401
Master_UUID: 13b3033e-5934-11e9-88b3-525400d71409
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
Network_Namespace:
1 row in set (0.00 sec)
mysql>
- 最後送上演示成功的圖片
