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

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

[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 mysql3bebf0e21df6d9034ce8275b14ebb1616e11f5e2678b1e084d03c087ed91a72a

[root@TNAS-2664 ~]# docker psCONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES40db0be51460 mysql "docker-entrypoint..." 44 seconds ago Up 29 seconds 33060/tcp, 0.0.0.0:3307->3306/tcp mysql_masterdb5f6a287a21 mautic/mautic "/entrypoint.sh ap..." 2 weeks ago Up 11 days 0.0.0.0:8082->80/tcp mauticdc1eac509c70 qianliu/mediawikiwithcomposer "docker-php-entryp..." 2 weeks ago Up 11 days 0.0.0.0:8086->80/tcp sarawikib5c0a00f5f42 mysql "docker-entrypoint..." 2 weeks ago Up 11 days 0.0.0.0:3306->3306/tcp, 33060/tcp mysql2911c0a8987ba qianliu/mediawikiwithcomposer "docker-php-entryp..." 2 weeks ago Up 11 days 0.0.0.0:8083->80/tcp qianliuwiki

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

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

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

[root@TNAS-2664 ~]# docker exec -it mysql_master /bin/bashroot@40db0be51460:/# mysql -uroot -p123456mysql: [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.

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

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

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

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

/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

/Volumes/MacintoshHDD_Data/mysql_slave_db  docker psCONTAINER ID IMAGE  COMMAND   CREATED  STATUS  PORTS    NAMES8623ac99e5d4 mysql  "docker-entrypoint.s…" 5 seconds ago Up 4 seconds 33060/tcp, 0.0.0.0:3307->3306/tcp mysql_slave

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

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

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

docker restart mysql_slave

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

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>

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)

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)

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

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: 0Master_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 specifiedmysql> exit

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: 0Master_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

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)

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: 0Master_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

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

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

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

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

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