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                # Window環境下的MySQL主從復制 ## 復制前的準備工作 準備兩臺安裝MySQL的計算機,既可實現兩臺MySQL服務器主從復制備份操作 在MySQL目錄下面的配置文件my.ini ```ini [mysqld] log_bin = "D:/MySQLlog/binlog" expire_logs_days = 10 max_binlong_size = 100M ``` 此時我們需要在D盤下面創建MySQLlog文件夾,binlog日志記錄在該文件里面 |參數|說明| |-|-| |expire_logs_days|表示二進制日志文件刪除的天數| |max_binlog_size|表示二進制日志文件最大的大小| 登錄MySQL之后,可以執行show variables like '%log_bin%'命令來測試下log_bin是否成功開啟,如果log_bin參數的值為ON的話,那么表示二進制日志文件已經開啟成功 在master上配置所需要的賬戶 ```sql grant replication slave on *.* to link@'%' identified by '123'; ``` 在my.ini配置文件中配置Master主機的相關信息 ```ini server-id = 1 binlog-do-db = text binlog-ignore-db = mysql ``` |參數|說明| |-|-| |server-id|表示服務器id,服務器之間id不能一樣| |binlog-do-db|表示要復制的數據庫| |binlog-ignore-db|表示不需要復制的數據庫| 重啟Master主機的MySQL服務,然后輸入show master status命令查詢 將Master的數據庫備份出來,然后導入到Slave主機中去 ```sql -- 導出數據 mysqldump -u root -p -h 127.0.0.1 text>C:\a.txt; -- 導入數據 mysqldump -u root -p -h 127.0.0.1 text<C:\a.txt; ``` 配置Slave主機 ```ini [mysqld] log_bin = "D:/MySQLlog/binlog" expire_logs_days = 10 max_binlong_size = 100M server-id = 2 ``` 重啟Slave主機 ```sql stop slave; ``` 設置Slave從機實現復制相關的信息,命令如下: ```sql change master to -> master_host = '192.168.0.1', -> master_user = 'link', -> master_password = '123', -> master_log_file = 'binglog.000003', -> master_log_pos = 120; ``` |參數|說明| |-|-| |master_host|實現復制的主機的ip地址| |master_user|實現復制的登錄遠程主機的用戶| |master_password|實現復制的登錄遠程主機的密碼| |master_log_file|實現復制的binglog日志文件| |master_log_pos|實現復制的binlog日志文件的偏移量| 繼續執行操作 ```sql start slave; show slave status \G; ``` 查看Last_IO_Error是否有錯誤提示,如果有執行12 重啟Master主機,執行show master status \G命令,記下File和Position的值,然后在Slave主機重新設置信息 ## 主從復制測試 嘗試在Master主機添加一條記錄,查看Slave主機是否同步
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