MySQL主從復制雜記（1）
阿新 • • 發佈：2018-03-16
MysQL 主從復制 基礎 雜記mysql主從復制架構及實現
主從配置
0、master1為主，master2為從節點
1、開啟主節點的二進制日誌、serverID
[root@master1 ~]# vim /etc/my.cnf [mysqld] log_bin=master-bin server-id=1 innodb-file-per-table=ON skip_name_resolve=ON systemctl start mariadb.service MariaDB [(none)]> SHOW GLOBAL VARIABLES LIKE ‘%log%‘; | log_bin | ON MariaDB [(none)]> SHOW MASTER LOGS; +------------------+-----------+ | Log_name | File_size | +------------------+-----------+ | mysql-bin.000001 | 264 | | mysql-bin.000002 | 264 | | mysql-bin.000003 | 264 | | mysql-bin.000004 | 245 | +------------------+-----------+ MariaDB [(none)]> SHOW GLOBAL VARIABLES LIKE ‘%server%‘; +----------------------+-------------------+ | Variable_name | Value | +----------------------+-------------------+ | character_set_server | latin1 | | collation_server | latin1_swedish_ci | | server_id | 1 | +----------------------+-------------------+
2、主節點創建一個有寫權限的賬戶
MariaDB [(none)]> GRANT REPLICATION SLAVE,REPLICATION CLIENT ON *.* TO ‘repluser‘@‘10.201.106.%‘ IDENTIFIED BY ‘replpass‘;
Query OK, 0 rows affected (0.01 sec)
MariaDB [(none)]> FLUSH PRIVILEGES;
Query OK, 0 rows affected (0.00 sec)3、從節點配置開啟中繼日誌，創建唯一ID號
[mysqld] innodb_file_per_table=ON relay-log=relay-log relay-log-index=relay-log.index server-id=7 skip_name_resolve=ON MariaDB [(none)]> SHOW GLOBAL VARIABLES LIKE ‘%log%‘; | relay_log | relay-log MariaDB [(none)]> SHOW GLOBAL VARIABLES LIKE ‘%server%‘; +----------------------+-------------------+ | Variable_name | Value | +----------------------+-------------------+ | character_set_server | latin1 | | collation_server | latin1_swedish_ci | | server_id | 7 | +----------------------+-------------------+
4、從節點連接主服務器，並啟用復制線程
MariaDB [(none)]> CHANGE MASTER TO MASTER_HOST=‘10.201.106.131‘,MASTER_USER=‘repluser‘,MASTER_PASSWORD=‘replpass‘,MASTER_LOG_FILE=‘master-bin.000003‘,MASTER_LOG_POS=498; MariaDB [(none)]> SHOW SLAVE STATUS\G *************************** 1. row *************************** Slave_IO_State: Master_Host: 10.201.106.131 Master_User: repluser Master_Port: 3306 Connect_Retry: 60 Master_Log_File: master-bin.000003 Read_Master_Log_Pos: 498 Relay_Log_File: relay-log.000001 Relay_Log_Pos: 4 Relay_Master_Log_File: master-bin.000003 Slave_IO_Running: No Slave_SQL_Running: No 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: 498 Relay_Log_Space: 245 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: NULL 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: 0 1 row in set (0.05 sec) 啟動復制線程： MariaDB [(none)]> START SLAVE;
5、驗證同步
MariaDB [(none)]> CREATE DATABASE mydb;
MariaDB [(none)]> SHOW MASTER STATUS;
+-------------------+----------+--------------+------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB |
+-------------------+----------+--------------+------------------+
| master-bin.000003 | 1087 | | |
+-------------------+----------+--------------+------------------+從節點：
MariaDB [(none)]> SHOW SLAVE STATUS\G
1. row
Slave_IO_State: Waiting for master to send event
Master_Host: 10.201.106.131
Master_User: repluser
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: master-bin.000003
Read_Master_Log_Pos: 1087
MySQL主從復制雜記（1）