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mysql8容器之间的replication配置

来源：SegmentFault 2023-01-21 16:05:21 0浏览 收藏

IT行业相对于一般传统行业，发展更新速度更快，一旦停止了学习，很快就会被行业所淘汰。所以我们需要踏踏实实的不断学习，精进自己的技术，尤其是初学者。今天golang学习网给大家整理了《mysql8容器之间的replication配置》，聊聊容器、MySQL、container、复制、replication，我们一起来看看吧！

背景

上周公司培训了MySQL replication, 这个周末打算用所学来实践操作一下。

  • Master server：MySQL container mysql_master on NAS

    • NAS server IP: 192.168.1.108
    • mysql_master inner ip: 172.17.0.6

  • Slave server: MySQL container mysql_slave on Mac mini

    • Mac mini docker host IP: 192.168.1.139
    • mysql_slave inner ip: 172.17.0.2

准备MySQL container

准备mysql_master

1 创建两个目录用来存放MySQL文件

mkdir -p /mnt/md1/disk4/mysql
mkdir -p /mnt/md1/disk4/mysql-files

2 创建用于测试的master mysql node

[root@TNAS-2664 disk4]# docker run -d -p 3307:3306 -e MYSQL_ROOT_PASSWORD=123456 --name mysql_master -v /mnt/md1/disk4/mysql:/var/lib/mysql -v /mnt/md1/disk4/mysql-files:/var/lib/mysql-files mysql
3bebf0e21df6d9034ce8275b14ebb1616e11f5e2678b1e084d03c087ed91a72a

3 查看当前NAS上运行的mysql的container ID

[root@TNAS-2664 ~]# docker ps
CONTAINER ID        IMAGE                           COMMAND                  CREATED             STATUS              PORTS                               NAMES
40db0be51460        mysql                           "docker-entrypoint..."   44 seconds ago      Up 29 seconds       33060/tcp, 0.0.0.0:3307->3306/tcp   mysql_master
db5f6a287a21        mautic/mautic                   "/entrypoint.sh ap..."   2 weeks ago         Up 11 days          0.0.0.0:8082->80/tcp                mautic
dc1eac509c70        qianliu/mediawikiwithcomposer   "docker-php-entryp..."   2 weeks ago         Up 11 days          0.0.0.0:8086->80/tcp                sarawiki
b5c0a00f5f42        mysql                           "docker-entrypoint..."   2 weeks ago         Up 11 days          0.0.0.0:3306->3306/tcp, 33060/tcp   mysql2
911c0a8987ba        qianliu/mediawikiwithcomposer   "docker-php-entryp..."   2 weeks ago         Up 11 days          0.0.0.0:8083->80/tcp                qianliuwiki

4 使用docker cp命令将my.cnf复制到host机器上进行更改

docker cp 40db0be51460:/etc/mysql/my.cnf .

5 在my.cnf 加入以下配置

 server-id                      = 1
 gtid-mode                      = ON    # (replicated by GTID)
 enforce_gtid_consistency       =1       #(replicated by GTID) 
 log-bin                        = master-log
 binlog_format                  = mixed
 expire-logs-days               = 14
 sync-binlog                    = 1
 log-bin-trust-function-creators= 1
 
 # MASTER DB #  
 binlog-ignore-db               = mysql,information_schema,performance_schema,sys
 auto-increment-increment       = 2
 auto-increment-offset          = 1
 
 # SLAVE DB #
 replicate-ignore-db            = mysql,information_schema,performance_schema,sys
 relay_log                      = relay-log
 log-slave-updates              = ON

6 将my.cnf 用docker cp 复制到mysql_master 容器中

docker cp my.cnf  40db0be51460:/etc/mysql/

7 进入mysql_slave，发现my.cnf因为权限文件 is ignored,这将导致刚刚写入到my.cnf的配置无法生效

[root@TNAS-2664 ~]# docker exec -it mysql_master /bin/bash
root@40db0be51460:/# mysql -uroot -p123456
mysql: [Warning] World-writable config file '/etc/mysql/my.cnf' is ignored.
mysql: [Warning] Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor.  Commands end with ; or \g.

8 更改my.cnf的权限为664

root@40db0be51460:/# chmod 644 /etc/mysql/my.cnf
root@40db0be51460:/# exit

9 重启mysql_slave以使my.cnf生效

[root@TNAS-2664 ~]# docker restart mysql_master

10 进入mysql_master查看master status

mysql> show master status;
+-------------------+----------+--------------+-------------------------------------------------+-------------------+
| File              | Position | Binlog_Do_DB | Binlog_Ignore_DB                                | Executed_Gtid_Set |
+-------------------+----------+--------------+-------------------------------------------------+-------------------+
| master-log.000001 |      156 |              | mysql,information_schema,performance_schema,sys |                   |
+-------------------+----------+--------------+-------------------------------------------------+-------------------+
1 row in set (0.00 sec)

mysql> exit

准备mysql_slave 容器

1 在Mac mini上创建两个目录用来存放MySQL文件

mkdir -p /Volumes/MacintoshHDD_Data/mysql_slave_db/mysql
mkdir -p /Volumes/MacintoshHDD_Data/mysql_slave_db/mysql-files

2 创建用于测试的mysql_slave container

 /Volumes/MacintoshHDD_Data/mysql_slave_db  docker run -d -p 3307:3306 -e MYSQL_ROOT_PASSWORD=123456 --name mysql_slave -v /Volumes/MacintoshHDD_Data/mysql_slave_db/mysql:/var/lib/mysql -v /Volumes/MacintoshHDD_Data/mysql_slave_db/mysql-files:/var/lib/mysql-files mysql

3 查看当前macmini上运行的mysql_slave的container ID

 /Volumes/MacintoshHDD_Data/mysql_slave_db  docker ps
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                               NAMES
8623ac99e5d4        mysql               "docker-entrypoint.s…"   5 seconds ago       Up 4 seconds        33060/tcp, 0.0.0.0:3307->3306/tcp   mysql_slave

4 使用docker cp命令将my.cnf复制到host机器上进行更改

docker cp 8623ac99e5d4:/etc/mysql/my.cnf .

5 在my.cnf 加入以下配置

server-id                      = 2
 gtid-mode                      = ON
 enforce_gtid_consistency       =1
 log-bin                        = slave-log
 binlog_format                  = mixed
 expire-logs-days               = 14
 sync-binlog                    = 1
 log-bin-trust-function-creators= 1
 
 # MASTER DB #  
 binlog-ignore-db               = mysql,information_schema,performance_schema,sys
 auto-increment-increment       = 2
 auto-increment-offset          = 2
 
 # SLAVE DB #
 replicate-ignore-db            = mysql,information_schema,performance_schema,sys
 relay_log                      = relay-log
 log-slave-updates              = ON

6 将my.cnf 用docker cp 复制到mysql_master 容器中

docker cp my.cnf  8623ac99e5d4:/etc/mysql/

7 重启mysql_slave以使my.cnf生效

docker restart mysql_slave

8 进入mysql_slave查看master status

mysql> show master status;
+------------------+----------+--------------+-------------------------------------------------+------------------------------------------+
| File             | Position | Binlog_Do_DB | Binlog_Ignore_DB                                | Executed_Gtid_Set                        |
+------------------+----------+--------------+-------------------------------------------------+------------------------------------------+
| slave-log.000001 |     1460 |              | mysql,information_schema,performance_schema,sys | f102ae13-5341-11eb-a578-0242ac110002:1-5 |
+------------------+----------+--------------+-------------------------------------------------+------------------------------------------+
1 row in set (0.00 sec)

准备用于复制的mysql用户

1 准备mysql_master中用来复制的mysql user

mysql> CREATE USER 'slave'@'192.168.1.139' IDENTIFIED BY 'slave';
Query OK, 0 rows affected (0.59 sec)

mysql> CREATE USER 'slave'@'172.17.0.2' IDENTIFIED BY 'slave';
Query OK, 0 rows affected (0.60 sec)

mysql> GRANT REPLICATION SLAVE ON *.* TO 'slave'@'192.168.1.139';
Query OK, 0 rows affected (0.19 sec)

mysql> GRANT REPLICATION SLAVE ON *.* TO 'slave'@'172.17.0.2';
Query OK, 0 rows affected (0.19 sec)j

mysql> flush privileges;
Query OK, 0 rows affected (0.10 sec)

mysql> exit

2 准备mysql_slave中用来复制的mysql user

mysql> CREATE USER 'slave'@'192.168.1.108' IDENTIFIED BY 'slave';
Query OK, 0 rows affected (0.02 sec)

mysql> CREATE USER 'slave'@'172.17.0.6' IDENTIFIED BY 'slave';
Query OK, 0 rows affected (0.01 sec)

mysql> GRANT REPLICATION SLAVE ON *.* TO 'slave'@'192.168.1.108';
Query OK, 0 rows affected (0.01 sec)

mysql> GRANT REPLICATION SLAVE ON *.* TO 'slave'@'172.17.0.6';
Query OK, 0 rows affected (0.01 sec)

mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)

mysql>

replication配置

配置mysql_master

mysql> change master to master_host='192.168.1.139',master_user='slave',master_password='slave',master_log_file='slave-log.000001',master_port=3307, master_log_pos=1460;
Query OK, 0 rows affected, 2 warnings (1.17 sec)

mysql> change master to master_host='192.168.1.139',master_user='slave',master_password='slave',master_auto_position=1,get_master_public_key=1;
Query OK, 0 rows affected, 2 warnings (0.45 sec)

配置mysql_slave

mysql> change master to master_host='192.168.1.108',master_user='slave',master_password='slave',master_log_file='master-log.000001',master_port=3307, master_log_pos=156;
Query OK, 0 rows affected, 2 warnings (0.15 sec)

mysql> change master to master_host='192.168.1.108',master_user='slave',master_password='slave',master_auto_position=1,get_master_public_key=1;
Query OK, 0 rows affected, 2 warnings (0.14 sec)

开启复制

1 mysql_master上start slave

mysql> start slave;
Query OK, 0 rows affected, 1 warning (0.00 sec)

2 查看slave status,发现并没有成功启动复制。出现错误

Access denied for user 'slave'@'172.17.0.1' (using password: YES)
需要到mysql_slave上创建相应的用户和权限，

mysql> show slave status \G;
*************************** 1. row ***************************
               Slave_IO_State: Connecting to master
                  Master_Host: 192.168.1.139
                  Master_User: slave
                  Master_Port: 3307
                Connect_Retry: 60
              Master_Log_File:
          Read_Master_Log_Pos: 4
               Relay_Log_File: relay-log.000001
                Relay_Log_Pos: 4
        Relay_Master_Log_File:
             Slave_IO_Running: Connecting
            Slave_SQL_Running: Yes
              Replicate_Do_DB:
          Replicate_Ignore_DB: mysql,information_schema,performance_schema,sys
           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: 0
              Relay_Log_Space: 156
              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: 1045
                Last_IO_Error: error connecting to master 'slave@192.168.1.139:3307' - retry-time: 60 retries: 2 message: Access denied for user 'slave'@'172.17.0.1' (using password: YES)
               Last_SQL_Errno: 0
               Last_SQL_Error:
  Replicate_Ignore_Server_Ids:
             Master_Server_Id: 0
                  Master_UUID:
             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: 210110 13:02:12
     Last_SQL_Error_Timestamp:
               Master_SSL_Crl:
           Master_SSL_Crlpath:
           Retrieved_Gtid_Set:
            Executed_Gtid_Set:
                Auto_Position: 1
         Replicate_Rewrite_DB:
                 Channel_Name:
           Master_TLS_Version:
       Master_public_key_path:
        Get_master_public_key: 1
            Network_Namespace:
1 row in set (0.01 sec)

ERROR:
No query specified

mysql> exit

3 mysql_slave 启动slave并查看slave status发现一切正常

mysql> show slave status;
mysql> show slave status\G;
*************************** 1. row ***************************
               Slave_IO_State: Waiting for master to send event
                  Master_Host: 192.168.1.108
                  Master_User: slave
                  Master_Port: 3307
                Connect_Retry: 60
              Master_Log_File: master-log.000001
          Read_Master_Log_Pos: 156
               Relay_Log_File: relay-log.000002
                Relay_Log_Pos: 373
        Relay_Master_Log_File: master-log.000001
             Slave_IO_Running: Yes
            Slave_SQL_Running: Yes
              Replicate_Do_DB:
          Replicate_Ignore_DB: mysql,information_schema,performance_schema,sys
           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: 156
              Relay_Log_Space: 576
              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: 9627309d-5341-11eb-aaa3-0242ac110006
             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: f102ae13-5341-11eb-a578-0242ac110002:1-5
                Auto_Position: 1
         Replicate_Rewrite_DB:
                 Channel_Name:
           Master_TLS_Version:
       Master_public_key_path:
        Get_master_public_key: 1
            Network_Namespace:
1 row in set, 1 warning (0.01 sec)

ERROR:
No query specified

4 mysql_slave 上创建用户

mysql> CREATE USER 'slave'@'172.17.0.1' IDENTIFIED BY 'slave';
Query OK, 0 rows affected (0.01 sec)

mysql> GRANT REPLICATION SLAVE ON *.* TO 'slave'@'172.17.0.1';
Query OK, 0 rows affected (0.00 sec)

mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)

5 再次查看mysql_master上的slave status，一切正常

mysql> show slave status \G;
*************************** 1. row ***************************
               Slave_IO_State: Waiting for master to send event
                  Master_Host: 192.168.1.139
                  Master_User: slave
                  Master_Port: 3307
                Connect_Retry: 60
              Master_Log_File: slave-log.000001
          Read_Master_Log_Pos: 2022
               Relay_Log_File: relay-log.000002
                Relay_Log_Pos: 2237
        Relay_Master_Log_File: slave-log.000001
             Slave_IO_Running: Yes
            Slave_SQL_Running: Yes
              Replicate_Do_DB:
          Replicate_Ignore_DB: mysql,information_schema,performance_schema,sys
           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: 2022
              Relay_Log_Space: 2440
              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: 2
                  Master_UUID: f102ae13-5341-11eb-a578-0242ac110002
             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: f102ae13-5341-11eb-a578-0242ac110002:1-7
            Executed_Gtid_Set: f102ae13-5341-11eb-a578-0242ac110002:1-7
                Auto_Position: 1
         Replicate_Rewrite_DB:
                 Channel_Name:
           Master_TLS_Version:
       Master_public_key_path:
        Get_master_public_key: 1
            Network_Namespace:
1 row in set (0.01 sec)

ERROR:
No query specified

测试复制

1 mysql_slave上创建test_db_slave

mysql> CREATE DATABASE test_db_slave;
Query OK, 1 row affected (0.01 sec)

2 mysql_master上创建test_db_master

mysql> CREATE DATABASE test_db_master;
Query OK, 1 row affected (0.24 sec)

3 查看mysql_slave上的databases

mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| performance_schema |
| sys                |
| test_db_master     |
| test_db_slave      |
+--------------------+
6 rows in set (0.00 sec)

mysql>

4 查看mysql_master上的databases

mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| performance_schema |
| sys                |
| test_db_master     |
| test_db_slave      |
+--------------------+
6 rows in set (0.00 sec)

mysql>

至此，mysql replication配置完毕。

今天关于《mysql8容器之间的replication配置》的内容就介绍到这里了，是不是学起来一目了然！想要了解更多关于mysql的内容请关注golang学习网公众号！

mysql 容器 MySQL container 复制 replication
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