Windows server 2012 R2配置MySQL主從之詳細步驟

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title: Windows配置mysql主從複製
date: 2019-09-21 08:45:18
tags: MySQL

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環境：

mysql 8.0.17

windows 10

1. 在同一臺機器上安裝兩個mysql

安裝略…

這裏是採用不同的端口，分別爲3306,3307

2. master配置：

1. 配置my.ini

my.ini配置文件：

[mysqld]
port = 3306					#master庫端口號
server_id = 1				#服務器的唯一ID號，主從之間不能衝突，默認是1
log-bin=mysql-bin			#啓動binlog 日誌功能
# binlog-do-db=dongyi	    #要同步的數據庫，默認所有庫
binlog-ignore-db=mysql		
binlog-format = mixed       #日誌的記錄格式，默認是mixed，推薦也是這個

2. 配置給從庫使用的用戶

說明： mgw爲我的用戶名，這裏mgw賬號必須要有操作數據庫的權限，ip是從庫的ip，由於在同一臺機器，所以寫127.0.0.1

CREATE USER 'mgw'@'127.0.0.1' IDENTIFIED BY 'PASSWORD'; 
GRANT REPLICATION SLAVE ON *.* TO 'mgw'@'127.0.0.1'; 
FLUSH PRIVILEGES;  # 刷新權限，立即生效

SHOW MASTER STATUS; #查看主服務器的狀態，並記錄 File和Position字段，從服務器要使用到

mysql> show master status;
+------------------+----------+--------------+------------------+-------------------+
| File             | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |
+------------------+----------+--------------+------------------+-------------------+
| mysql-bin.000001 |     2658 | dongyi       | mysql            |                   |
+------------------+----------+--------------+------------------+-------------------+
1 row in set (0.00 sec)

3. slave配置

1.配置從庫my.ini

my.ini配置文件：

[mysqld]
port = 3307	
server-id = 2  #服務器唯一ID號，不能重複
log-bin   = mysql-bin  
binlog-format = mixed  #可以不用配置，默認是mixed，在沒有配置log-bin時，這個值並不生效
#從庫的本地事務日誌更新，默認從主庫同步過來的操作記錄並不寫入從庫的本地事務日誌，
#會影響到我們在從庫上做 事務日誌 備份功能，此處開啓
#如果不會在從庫上做事務日誌備份（增量備份）功能，建議不開啓，減少磁盤IO
log-slave-updates = 1  

2.添加主庫信息

CHANGE MASTER TO MASTER_HOST='127.0.0.1',MASTER_PORT=3306,MASTER_USER='mgw',MASTER_PASSWORD='123456',MASTER_LOG_FILE='mysql-bin.000001',MASTER_LOG_POS=2658;

# MASTER_LOG_FILE 和 MASTER_LOG_POS爲master的日誌文件和位置

3.啓動從庫複製功能

START SLAVE; #啓動從複製功能

STOP SLAVE; #停止從複製功能的命令

RESET SLAVE; #重置從複製功能的配置，會清除 master.info 和 relay-log.info 兩個文件

4.查看從庫複製狀態

SHOW SLAVE STATUS\G;

mysql> show slave status\G
*************************** 1. row ***************************
               Slave_IO_State: Waiting for master to send event
                  Master_Host: 127.0.0.1
                  Master_User: mgw
                  Master_Port: 3306
                Connect_Retry: 60
              Master_Log_File: mysql-bin.000001
          Read_Master_Log_Pos: 2658
               Relay_Log_File: MY-20190430BUDR-relay-bin.000003
                Relay_Log_Pos: 523
        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: 2658
              Relay_Log_Space: 741
              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: eb57479b-a6d0-11e9-b4e1-507b9d99d971
             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)

**注意：**這兩項都爲Yes, 即爲配置成功

Slave_IO_Running: Yes

Slave_SQL_Running: Yes

4.測試

master中：

mysql> create table mgw_test(
    -> id int not null primary key auto_increment,
    -> name varchar(10),
    -> age int);
Query OK, 0 rows affected (0.03 sec)

slave中：

mysql> show tables;
+------------------+
| Tables_in_dongyi |
+------------------+
| mgw_test         |
+------------------+
1 rows in set (0.00 sec)

採坑： 由於server_id 重複，導致Slave_IO_Running: No

設置全局server_id即可：

SET GLOBAL server_id=2;

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