zoukankan      html  css  js  c++  java
  • mysql5.7.26做主主配置

    一、首先两台服务器安装好mysql数据库环境

    参照linux rpm方式安装mysql5.1

    https://www.cnblogs.com/sky-cheng/p/10564604.html

    二、在两台mysql上都创建复制账号

    mysql> grant replication slave,replication client on *.* to 'repl'@'%' identified by 'Zaq1xsw@';
    Query OK, 0 rows affected, 1 warning (0.00 sec)
    mysql> use mysql;
    Reading table information for completion of table and column names
    You can turn off this feature to get a quicker startup with -A
    
    Database changed
    mysql> select user,host from user;
    +---------------+-----------+
    | user          | host      |
    +---------------+-----------+
    | repl          | %         |
    | root          | %         |
    | mysql.session | localhost |
    | mysql.sys     | localhost |
    +---------------+-----------+
    4 rows in set (0.00 sec)

    三、两台mysql服务器上上分别设置不同的Server_id,同时都开启二进制日志

    mysql> show variables like '%server_id%';
    +----------------+-------+
    | Variable_name  | Value |
    +----------------+-------+
    | server_id      | 0     |
    | server_id_bits | 32    |
    +----------------+-------+

    如果配置文件没有设置server_id参数,则默认都是0

    编辑/etc/my.cnf

    添加service_id,它的值可以跟服务器的IP最后一位数字一样,这样就能保证内网中的服务器ID不重复。一台设置

    server_id=103
    log-bin=master
    binlog_format=row

    另一台

    server_id=69
    log-bin=master-1
    binlog_format=row

    四、重启两台服务器的mysql服务

    五、两台服务器分别执行change master操作

    首先获取第一台数据库日志文件名称和偏移量:

    mysql> show master statusG;
    *************************** 1. row ***************************
                 File: master-1.000001
             Position: 154
         Binlog_Do_DB: 
     Binlog_Ignore_DB: 
    Executed_Gtid_Set: 
    1 row in set (0.00 sec)
    
    ERROR: 
    No query specified

    在另外一台上执行

    mysql> change master
        -> to
        -> master_host='172.28.18.69',
        -> master_port=3306,
        -> master_user='repl',
        -> master_password='xxxxxxxxx',
        -> master_log_file='master-1.000001',
        -> master_log_pos=154;
    Query OK, 0 rows affected, 2 warnings (0.20 sec)

    开启这台上的主从复制

    mysql> start slave;
    Query OK, 0 rows affected (0.01 sec)

    查看从库状态

    mysql> show slave statusG
    *************************** 1. row ***************************
                   Slave_IO_State: Waiting for master to send event
                      Master_Host: 172.28.18.69
                      Master_User: repl
                      Master_Port: 3306
                    Connect_Retry: 60
                  Master_Log_File: master-1.000001
              Read_Master_Log_Pos: 154
                   Relay_Log_File: node2-relay-bin.000002
                    Relay_Log_Pos: 319
            Relay_Master_Log_File: master-1.000001
                 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: 154
                  Relay_Log_Space: 526
                  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: 69
                      Master_UUID: c76bbd08-7acd-11e9-badd-14feb5dc2c77
                 Master_Info_File: /home/mysql-5.7.26/data/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: 
    Slave_IO_Running: Yes
    Slave_SQL_Running: Yes从库同步线程启动成功,同样在另外一台服务器上也执行上述的操作,实际上主主配置就是互为主从配置。配置完后,在两台服务器上都可以查看主库和从库的状态

    六、测试数据
    在其中一台上插入数据,另外一台立即可以同步数据,表示配置成功。
    首先在两台服务器上分别执行查询,看看表里数据是否一致
    mysql> select * from test;
    +------+------+
    | id   | name |
    +------+------+
    |    1 | aaaa |
    |    2 | bbbb |
    |    3 | ccc  |
    +------+------+
    3 rows in set (0.00 sec)
    mysql> select * from test;
    +------+------+
    | id   | name |
    +------+------+
    |    1 | aaaa |
    |    2 | bbbb |
    |    3 | ccc  |
    +------+------+

    两台服务器数据一致,在其中一台插入数据

    mysql> insert into test values(4,'dddd');
    Query OK, 1 row affected (0.03 sec)
    
    mysql> select * from test;
    +------+------+
    | id   | name |
    +------+------+
    |    1 | aaaa |
    |    2 | bbbb |
    |    3 | ccc  |
    |    4 | dddd |
    +------+------+
    4 rows in set (0.00 sec)

    另外一台查询

    mysql> select * from test;
    +------+------+
    | id   | name |
    +------+------+
    |    1 | aaaa |
    |    2 | bbbb |
    |    3 | ccc  |
    |    4 | dddd |
    +------+------+
    4 rows in set (0.00 sec)

    插入的数据已经同步了

    再在这台服务器上插入数据

    mysql> insert into test values(5,'eeee');
    Query OK, 1 row affected (0.02 sec)
    
    mysql> select * form test
        -> ;
    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 'form test' at line 1
    mysql> select * from test;
    +------+------+
    | id   | name |
    +------+------+
    |    1 | aaaa |
    |    2 | bbbb |
    |    3 | ccc  |
    |    4 | dddd |
    |    5 | eeee |
    +------+------+
    5 rows in set (0.00 sec)

    在另外一台查询

    mysql> select * from test;
    +------+------+
    | id   | name |
    +------+------+
    |    1 | aaaa |
    |    2 | bbbb |
    |    3 | ccc  |
    |    4 | dddd |
    |    5 | eeee |
    +------+------+
    5 rows in set (0.00 sec)

    数据同步了,至此mysql主主配置成功。



  • 相关阅读:
    markdown with vim
    递归
    类 sizeof
    cppcheck工具
    c++ explicit的含义和用法
    pca主成分分析
    string的使用
    linux的shell进化简史
    adb shell 无法启动 (insufficient permissions for device)
    c++ 四种转换的意思
  • 原文地址:https://www.cnblogs.com/sky-cheng/p/10898669.html
Copyright © 2011-2022 走看看