mysql server安装图解教程（mysql容器之间的replication配置实例详解）

mysql server安装图解教程

mysql容器之间的replication配置实例详解

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: MySQK 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

创建两个目录用来存放MySQL文件

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1 2	mkdir -p /mnt/md1/disk4/mysql mkdir -p /mnt/md1/disk4/mysql-files

创建用于测试的master mysql node

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1 2	[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

查看当前NAS上运行的mysql的container ID

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[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

使用docker cp命令将my.cnf复制到host机器上进行更改

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

在my.cnf 加入以下配置

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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

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

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

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

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[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.

更改my.cnf的权限为664

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1 2	root@40db0be51460:/# chmod 644 /etc/mysql/my.cnf root@40db0be51460:/# exit

重启mysql_slave以使my.cnf生效

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

9.进入mysql_master查看master status

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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

在Mac mini上创建两个目录用来存放MySQL文件

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1 2	mkdir -p /Volumes/MacintoshHDD_Data/mysql_slave_db/mysql mkdir -p /Volumes/MacintoshHDD_Data/mysql_slave_db/mysql-files

创建用于测试的mysql_slave container

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1	/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

查看当前macmini上运行的mysql_slave的container ID

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/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

使用docker cp命令将my.cnf复制到host机器上进行更改

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

在my.cnf 加入以下配置

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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

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

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

重启mysql_slave以使my.cnf生效

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1	docker restart mysql_slave

进入mysql_slave查看master status

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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

准备mysql_master中用来复制的mysql user

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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

准备mysql_slave中用来复制的mysql user

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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

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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

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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

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

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上创建响应的用户和权限，

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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

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

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