MySQL/MariaDB数据库的复制过滤器
作者：尹正杰
版权声明：原创作品，谢绝转载！否则将追究法律责任。
一.复制过滤器概述
1>.复制器过滤器功能
让从节点仅复制指定的数据库，或指定数据库的指定表。
2>.两种实现方式
方案一:
主服务器仅向二进制日志中记录与特定数据库相关的事件 此项和binlog_format相关,详情请参考官网说明:https://mariadb.com/kb/en/library/mysqld-options/#-binlog-ignore-db binlog_do_db = 数据库白名单列表，多个数据库需多行实现 binlog_ignore_db = 数据库黑名单列表 问题：
基于二进制还原将无法实现(因为记录的日志只有部分数据库信息，可能存在部分数据无法还原的现象)；不建议使用
方案二:
从服务器SQL_THREAD在replay中继日志中的事件时，仅读取与特定数据库(特定表)相关的事件并应用于本地 问题：
由于将master节点的所有数据都copy至slave节点,但SQL_THREAD线程仅读取与特定数据库(特定表)相关的事件并应用于本地,也就是说部分数据传过来也不去使用，这会造成网络及磁盘IO浪费。
3>.从服务器上的复制过滤器相关变量
MariaDB [(none)]> SHOW VARIABLES LIKE '%replicate%'; +----------------------------------+-----------+ | Variable_name | Value | +----------------------------------+-----------+ | replicate_annotate_row_events | OFF | | replicate_do_db | | | replicate_do_table | | | replicate_events_marked_for_skip | replicate | | replicate_ignore_db | | | replicate_ignore_table | | | replicate_wild_do_table | | | replicate_wild_ignore_table | | +----------------------------------+-----------+ 8 rows in set (0.00 sec) MariaDB [(none)]>
replicate_do_db= 指定复制库的白名单 replicate_ignore_db= 指定复制库黑名单 replicate_do_table= 指定复制表的白名单 replicate_ignore_table= 指定复制表的黑名单 replicate_wild_do_table= foo%.bar% 解决跨库更新的问题支持通配符 replicate_wild_ignore_table=
同上
二.复制过滤器在slave节点定义白名单案例
1>.master服务器配置
[root@node102.yinzhengjie.org.cn ~]# cat /etc/my.cnf [mysqld] server-id = 102 binlog_format = row log_bin = /data/mysql/logbin/master-102 character-set-server = utf8mb4 default_storage_engine = InnoDB datadir = /var/lib/mysql socket = /var/lib/mysql/mysql.sock [mysqld_safe] log-error = /var/log/mariadb/mariadb.log pid-file = /var/run/mariadb/mariadb.pid !includedir /etc/my.cnf.d [root@node102.yinzhengjie.org.cn ~]#
[root@node102.yinzhengjie.org.cn ~]# ll /var/lib/mysql/ total 0 [root@node102.yinzhengjie.org.cn ~]# [root@node102.yinzhengjie.org.cn ~]# ll /data/mysql/logbin/ total 0 [root@node102.yinzhengjie.org.cn ~]# [root@node102.yinzhengjie.org.cn ~]# systemctl start mariadb [root@node102.yinzhengjie.org.cn ~]# [root@node102.yinzhengjie.org.cn ~]# ll /var/lib/mysql/ total 37852 -rw-rw---- 1 mysql mysql 16384 Nov 10 11:03 aria_log.00000001 -rw-rw---- 1 mysql mysql 52 Nov 10 11:03 aria_log_control -rw-rw---- 1 mysql mysql 18874368 Nov 10 11:03 ibdata1 -rw-rw---- 1 mysql mysql 5242880 Nov 10 11:03 ib_logfile0 -rw-rw---- 1 mysql mysql 5242880 Nov 10 11:03 ib_logfile1 drwx------ 2 mysql mysql 4096 Nov 10 11:03 mysql srwxrwxrwx 1 mysql mysql 0 Nov 10 11:03 mysql.sock drwx------ 2 mysql mysql 4096 Nov 10 11:03 performance_schema drwx------ 2 mysql mysql 6 Nov 10 11:03 test [root@node102.yinzhengjie.org.cn ~]# [root@node102.yinzhengjie.org.cn ~]# ll /data/mysql/logbin/ total 940 -rw-rw---- 1 mysql mysql 26813 Nov 10 11:03 master-102.000001 -rw-rw---- 1 mysql mysql 921736 Nov 10 11:03 master-102.000002 -rw-rw---- 1 mysql mysql 245 Nov 10 11:03 master-102.000003 -rw-rw---- 1 mysql mysql 111 Nov 10 11:03 master-102.index [root@node102.yinzhengjie.org.cn ~]# [root@node102.yinzhengjie.org.cn ~]#
[root@node102.yinzhengjie.org.cn ~]# mysql Welcome to the MariaDB monitor. Commands end with ; or g. Your MariaDB connection id is 9 Server version: 5.5.64-MariaDB MariaDB Server Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others. Type 'help;' or 'h' for help. Type 'c' to clear the current input statement. MariaDB [(none)]> MariaDB [(none)]> SELECT user,host,password FROM mysql.user; +------+----------------------------+----------+ | user | host | password | +------+----------------------------+----------+ | root | localhost | | | root | node102.yinzhengjie.org.cn | | | root | 127.0.0.1 | | | root | ::1 | | | | localhost | | | | node102.yinzhengjie.org.cn | | +------+----------------------------+----------+ 6 rows in set (0.00 sec) MariaDB [(none)]> MariaDB [(none)]> GRANT REPLICATION SLAVE ON *.* TO 'copy'@'172.30.1.10%' IDENTIFIED BY 'yinzhengjie'; Query OK, 0 rows affected (0.00 sec) MariaDB [(none)]> MariaDB [(none)]> SELECT user,host,password FROM mysql.user; +------+----------------------------+-------------------------------------------+ | user | host | password | +------+----------------------------+-------------------------------------------+ | root | localhost | | | root | node102.yinzhengjie.org.cn | | | root | 127.0.0.1 | | | root | ::1 | | | | localhost | | | | node102.yinzhengjie.org.cn | | | copy | 172.30.1.10% | *BD0B1F48FDC55BD27555FC2F22FF29A68A25A1D7 | +------+----------------------------+-------------------------------------------+ 7 rows in set (0.00 sec) MariaDB [(none)]> MariaDB [(none)]> QUIT Bye [root@node102.yinzhengjie.org.cn ~]#
[root@node102.yinzhengjie.org.cn ~]# mysql Welcome to the MariaDB monitor. Commands end with ; or g. Your MariaDB connection id is 17 Server version: 5.5.64-MariaDB MariaDB Server Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others. Type 'help;' or 'h' for help. Type 'c' to clear the current input statement. MariaDB [(none)]> MariaDB [(none)]> SHOW MASTER LOGS; +-------------------+-----------+ | Log_name | File_size | +-------------------+-----------+ | master-102.000001 | 26813 | | master-102.000002 | 921736 | | master-102.000003 | 403 | +-------------------+-----------+ 3 rows in set (0.00 sec) MariaDB [(none)]> MariaDB [(none)]> SHOW MASTER STATUS; +-------------------+----------+--------------+------------------+ | File | Position | Binlog_Do_DB | Binlog_Ignore_DB | +-------------------+----------+--------------+------------------+ | master-102.000003 | 403 | | | +-------------------+----------+--------------+------------------+ 1 row in set (0.00 sec) MariaDB [(none)]> MariaDB [(none)]> QUIT Bye [root@node102.yinzhengjie.org.cn ~]#
2>.slave节点配置主从复制
[root@node103.yinzhengjie.org.cn ~]# cat /etc/my.cnf #查看配置文件 [mysqld] server-id = 103 binlog_format = row read-only = on replicate_do_db = devops relay_log = relay-log-103 relay_log_index = relay-log-103.index character-set-server = utf8mb4 default_storage_engine = InnoDB datadir = /var/lib/mysql socket = /var/lib/mysql/mysql.sock [mysqld_safe] log-error = /var/log/mariadb/mariadb.log pid-file = /var/run/mariadb/mariadb.pid !includedir /etc/my.cnf.d [root@node103.yinzhengjie.org.cn ~]#
[root@node103.yinzhengjie.org.cn ~]# ll /var/lib/mysql/ total 0 [root@node103.yinzhengjie.org.cn ~]# [root@node103.yinzhengjie.org.cn ~]# systemctl start mariadb [root@node103.yinzhengjie.org.cn ~]# [root@node103.yinzhengjie.org.cn ~]# ll /var/lib/mysql/ total 37852 -rw-rw---- 1 mysql mysql 16384 Nov 10 11:14 aria_log.00000001 -rw-rw---- 1 mysql mysql 52 Nov 10 11:14 aria_log_control -rw-rw---- 1 mysql mysql 18874368 Nov 10 11:14 ibdata1 -rw-rw---- 1 mysql mysql 5242880 Nov 10 11:14 ib_logfile0 -rw-rw---- 1 mysql mysql 5242880 Nov 10 11:14 ib_logfile1 drwx------ 2 mysql mysql 4096 Nov 10 11:14 mysql srwxrwxrwx 1 mysql mysql 0 Nov 10 11:14 mysql.sock drwx------ 2 mysql mysql 4096 Nov 10 11:14 performance_schema drwx------ 2 mysql mysql 6 Nov 10 11:14 test [root@node103.yinzhengjie.org.cn ~]#
[root@node103.yinzhengjie.org.cn ~]# mysql Welcome to the MariaDB monitor. Commands end with ; or g. Your MariaDB connection id is 2 Server version: 5.5.64-MariaDB MariaDB Server Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others. Type 'help;' or 'h' for help. Type 'c' to clear the current input statement. MariaDB [(none)]> CHANGE MASTER TO -> MASTER_HOST='172.30.1.102', -> MASTER_USER='copy', -> MASTER_PASSWORD='yinzhengjie', -> MASTER_PORT=3306, -> MASTER_LOG_FILE='master-102.000003', -> MASTER_LOG_POS=403, -> MASTER_CONNECT_RETRY=10; Query OK, 0 rows affected (0.01 sec) MariaDB [(none)]> MariaDB [(none)]> SHOW SLAVE STATUSG *************************** 1. row *************************** Slave_IO_State: Master_Host: 172.30.1.102 Master_User: copy Master_Port: 3306 Connect_Retry: 10 Master_Log_File: master-102.000003 Read_Master_Log_Pos: 403 Relay_Log_File: relay-log-103.000001 Relay_Log_Pos: 4 Relay_Master_Log_File: master-102.000003 Slave_IO_Running: No Slave_SQL_Running: No Replicate_Do_DB: devops 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: 403 Relay_Log_Space: 245 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: NULL 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: 0 1 row in set (0.00 sec) MariaDB [(none)]> MariaDB [(none)]> START SLAVE; Query OK, 0 rows affected (0.00 sec) MariaDB [(none)]> MariaDB [(none)]> SHOW SLAVE STATUSG *************************** 1. row *************************** Slave_IO_State: Waiting for master to send event Master_Host: 172.30.1.102 Master_User: copy Master_Port: 3306 Connect_Retry: 10 Master_Log_File: master-102.000003 Read_Master_Log_Pos: 403 Relay_Log_File: relay-log-103.000002 Relay_Log_Pos: 530 Relay_Master_Log_File: master-102.000003 Slave_IO_Running: Yes Slave_SQL_Running: Yes Replicate_Do_DB: devops 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: 403 Relay_Log_Space: 822 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: 102 1 row in set (0.00 sec) MariaDB [(none)]>
3>.验证数据库配置是否生效
[root@node102.yinzhengjie.org.cn ~]# mysql Welcome to the MariaDB monitor. Commands end with ; or g. Your MariaDB connection id is 20 Server version: 5.5.64-MariaDB MariaDB Server Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others. Type 'help;' or 'h' for help. Type 'c' to clear the current input statement. MariaDB [(none)]> SHOW DATABASES; +--------------------+ | Database | +--------------------+ | information_schema | | mysql | | performance_schema | | test | +--------------------+ rows in set (0.00 sec) MariaDB [(none)]> MariaDB [(none)]> CREATE DATABASE db1; Query OK, 1 row affected (0.00 sec) MariaDB [(none)]> CREATE DATABASE db2; Query OK, 1 row affected (0.00 sec) MariaDB [(none)]> MariaDB [(none)]> CREATE DATABASE db3; Query OK, 1 row affected (0.00 sec) MariaDB [(none)]> MariaDB [(none)]> CREATE DATABASE devops; Query OK, 1 row affected (0.00 sec) MariaDB [(none)]> MariaDB [(none)]> SHOW DATABASES; +--------------------+ | Database | +--------------------+ | information_schema | | db1 | | db2 | | db3 | | devops | | mysql | | performance_schema | | test | +--------------------+ rows in set (0.00 sec) MariaDB [(none)]> MariaDB [(none)]> USE devops Database changed MariaDB [devops]> MariaDB [devops]> CREATE TABLE students(id INT UNSIGNED AUTO_INCREMENT PRIMARY KEY,name VARCHAR(30) NOT NULL,sex ENUM('bo y','girl') DEFAULT 'boy',age TINYINT UNSIGNED,mobile CHAR(11),address VARCHAR(50));Query OK, 0 rows affected (0.01 sec) MariaDB [devops]> MariaDB [devops]> INSERT INTO students (name,age,mobile,address) VALUES ('Jason Yin',18,10000,'beijing'),('Jay','40',1008 6,'Taiwan');Query OK, 2 rows affected (0.01 sec) Records: 2 Duplicates: 0 Warnings: 0 MariaDB [devops]> MariaDB [devops]> SHOW TABLES; +------------------+ | Tables_in_devops | +------------------+ | students | +------------------+ 1 row in set (0.00 sec) MariaDB [devops]> MariaDB [devops]> SELECT * FROM students; +----+-----------+------+------+--------+---------+ | id | name | sex | age | mobile | address | +----+-----------+------+------+--------+---------+ | 1 | Jason Yin | boy | 18 | 10000 | beijing | | 2 | Jay | boy | 40 | 10086 | Taiwan | +----+-----------+------+------+--------+---------+ 2 rows in set (0.00 sec) MariaDB [devops]> MariaDB [devops]>
[root@node103.yinzhengjie.org.cn ~]# mysql Welcome to the MariaDB monitor. Commands end with ; or g. Your MariaDB connection id is 5 Server version: 5.5.64-MariaDB MariaDB Server Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others. Type 'help;' or 'h' for help. Type 'c' to clear the current input statement. MariaDB [(none)]> MariaDB [(none)]> SHOW DATABASES; +--------------------+ | Database | +--------------------+ | information_schema | | devops | | mysql | | performance_schema | | test | +--------------------+ 5 rows in set (0.00 sec) MariaDB [(none)]> MariaDB [(none)]> USE devops 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 MariaDB [devops]> SHOW TABLES; +------------------+ | Tables_in_devops | +------------------+ | students | +------------------+ 1 row in set (0.00 sec) MariaDB [devops]> MariaDB [devops]> SELECT * FROM students; +----+-----------+------+------+--------+---------+ | id | name | sex | age | mobile | address | +----+-----------+------+------+--------+---------+ | 1 | Jason Yin | boy | 18 | 10000 | beijing | | 2 | Jay | boy | 40 | 10086 | Taiwan | +----+-----------+------+------+--------+---------+ 2 rows in set (0.01 sec) MariaDB [devops]> MariaDB [devops]> MariaDB [(none)]> QUIT Bye [root@node103.yinzhengjie.org.cn ~]#
三.复制过滤器在master节点定义白名单案例
1>.master服务器配置
[root@node102.yinzhengjie.org.cn ~]# cat /etc/my.cnf [mysqld] server-id = 102 binlog_format = row log_bin = /data/mysql/logbin/master-102 binlog_do_db = db2 #此处我们只记录db2的日志 binlog_do_db = devops #和上面一行累加起来，就是只记录db2和devops数据库的内容 character-set-server = utf8mb4 default_storage_engine = InnoDB datadir = /var/lib/mysql socket = /var/lib/mysql/mysql.sock [mysqld_safe] log-error = /var/log/mariadb/mariadb.log pid-file = /var/run/mariadb/mariadb.pid !includedir /etc/my.cnf.d [root@node102.yinzhengjie.org.cn ~]#
[root@node102.yinzhengjie.org.cn ~]# ll /var/lib/mysql/ total 0 [root@node102.yinzhengjie.org.cn ~]# [root@node102.yinzhengjie.org.cn ~]# ll /data/mysql/logbin/ total 0 [root@node102.yinzhengjie.org.cn ~]# [root@node102.yinzhengjie.org.cn ~]# systemctl start mariadb [root@node102.yinzhengjie.org.cn ~]# [root@node102.yinzhengjie.org.cn ~]# ll /var/lib/mysql/ total 37852 -rw-rw---- 1 mysql mysql 16384 Nov 10 11:44 aria_log.00000001 -rw-rw---- 1 mysql mysql 52 Nov 10 11:44 aria_log_control -rw-rw---- 1 mysql mysql 18874368 Nov 10 11:44 ibdata1 -rw-rw---- 1 mysql mysql 5242880 Nov 10 11:44 ib_logfile0 -rw-rw---- 1 mysql mysql 5242880 Nov 10 11:44 ib_logfile1 drwx------ 2 mysql mysql 4096 Nov 10 11:44 mysql srwxrwxrwx 1 mysql mysql 0 Nov 10 11:44 mysql.sock drwx------ 2 mysql mysql 4096 Nov 10 11:44 performance_schema drwx------ 2 mysql mysql 6 Nov 10 11:44 test [root@node102.yinzhengjie.org.cn ~]# [root@node102.yinzhengjie.org.cn ~]# ll /data/mysql/logbin/ total 16 -rw-rw---- 1 mysql mysql 264 Nov 10 11:44 master-102.000001 -rw-rw---- 1 mysql mysql 264 Nov 10 11:44 master-102.000002 -rw-rw---- 1 mysql mysql 245 Nov 10 11:44 master-102.000003 -rw-rw---- 1 mysql mysql 111 Nov 10 11:44 master-102.index [root@node102.yinzhengjie.org.cn ~]#
[root@node102.yinzhengjie.org.cn ~]# mysql Welcome to the MariaDB monitor. Commands end with ; or g. Your MariaDB connection id is 9 Server version: 5.5.64-MariaDB MariaDB Server Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others. Type 'help;' or 'h' for help. Type 'c' to clear the current input statement. MariaDB [(none)]> MariaDB [(none)]> SELECT user,host,password FROM mysql.user; +------+----------------------------+----------+ | user | host | password | +------+----------------------------+----------+ | root | localhost | | | root | node102.yinzhengjie.org.cn | | | root | 127.0.0.1 | | | root | ::1 | | | | localhost | | | | node102.yinzhengjie.org.cn | | +------+----------------------------+----------+ rows in set (0.00 sec) MariaDB [(none)]> MariaDB [(none)]> GRANT REPLICATION SLAVE ON *.* TO 'copy'@'172.30.1.10%' IDENTIFIED BY 'yinzhengjie'; Query OK, 0 rows affected (0.00 sec) MariaDB [(none)]> MariaDB [(none)]> SELECT user,host,password FROM mysql.user; +------+----------------------------+-------------------------------------------+ | user | host | password | +------+----------------------------+-------------------------------------------+ | root | localhost | | | root | node102.yinzhengjie.org.cn | | | root | 127.0.0.1 | | | root | ::1 | | | | localhost | | | | node102.yinzhengjie.org.cn | | | copy | 172.30.1.10% | *BD0B1F48FDC55BD27555FC2F22FF29A68A25A1D7 | +------+----------------------------+-------------------------------------------+ rows in set (0.00 sec) MariaDB [(none)]> MariaDB [(none)]> QUIT Bye [root@node102.yinzhengjie.org.cn ~]#
[root@node102.yinzhengjie.org.cn ~]# mysql Welcome to the MariaDB monitor. Commands end with ; or g. Your MariaDB connection id is 17 Server version: 5.5.64-MariaDB MariaDB Server Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others. Type 'help;' or 'h' for help. Type 'c' to clear the current input statement. MariaDB [(none)]> MariaDB [(none)]> SHOW MASTER LOGS; +-------------------+-----------+ | Log_name | File_size | +-------------------+-----------+ | master-102.000001 | 26813 | | master-102.000002 | 921736 | | master-102.000003 | 403 | +-------------------+-----------+ rows in set (0.00 sec) MariaDB [(none)]> MariaDB [(none)]> SHOW MASTER STATUS; +-------------------+----------+--------------+------------------+ | File | Position | Binlog_Do_DB | Binlog_Ignore_DB | +-------------------+----------+--------------+------------------+ | master-102.000003 | 403 | | | +-------------------+----------+--------------+------------------+ row in set (0.00 sec) MariaDB [(none)]> MariaDB [(none)]> QUIT Bye [root@node102.yinzhengjie.org.cn ~]#
2>.slave节点配置主从复制
[root@node103.yinzhengjie.org.cn ~]# cat /etc/my.cnf #最好将之前配置的从节点白名单删除，以免影响试验结果 [mysqld] server-id = 103 binlog_format = row read-only = on relay_log = relay-log-103 relay_log_index = relay-log-103.index character-set-server = utf8mb4 default_storage_engine = InnoDB datadir = /var/lib/mysql socket = /var/lib/mysql/mysql.sock [mysqld_safe] log-error = /var/log/mariadb/mariadb.log pid-file = /var/run/mariadb/mariadb.pid !includedir /etc/my.cnf.d [root@node103.yinzhengjie.org.cn ~]# [root@node103.yinzhengjie.org.cn ~]#
[root@node103.yinzhengjie.org.cn ~]# ll /var/lib/mysql/ total 0 [root@node103.yinzhengjie.org.cn ~]# [root@node103.yinzhengjie.org.cn ~]# systemctl start mariadb [root@node103.yinzhengjie.org.cn ~]# [root@node103.yinzhengjie.org.cn ~]# ll /var/lib/mysql/ total 37852 -rw-rw---- 1 mysql mysql 16384 Nov 10 11:48 aria_log.00000001 -rw-rw---- 1 mysql mysql 52 Nov 10 11:48 aria_log_control -rw-rw---- 1 mysql mysql 18874368 Nov 10 11:48 ibdata1 -rw-rw---- 1 mysql mysql 5242880 Nov 10 11:48 ib_logfile0 -rw-rw---- 1 mysql mysql 5242880 Nov 10 11:48 ib_logfile1 drwx------ 2 mysql mysql 4096 Nov 10 11:48 mysql srwxrwxrwx 1 mysql mysql 0 Nov 10 11:48 mysql.sock drwx------ 2 mysql mysql 4096 Nov 10 11:48 performance_schema drwx------ 2 mysql mysql 6 Nov 10 11:48 test [root@node103.yinzhengjie.org.cn ~]# [root@node103.yinzhengjie.org.cn ~]#
[root@node103.yinzhengjie.org.cn ~]# mysql Welcome to the MariaDB monitor. Commands end with ; or g. Your MariaDB connection id is 2 Server version: 5.5.64-MariaDB MariaDB Server Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others. Type 'help;' or 'h' for help. Type 'c' to clear the current input statement. MariaDB [(none)]> CHANGE MASTER TO -> MASTER_HOST='172.30.1.102', -> MASTER_USER='copy', -> MASTER_PASSWORD='yinzhengjie', -> MASTER_PORT=3306, -> MASTER_LOG_FILE='master-102.000003', -> MASTER_LOG_POS=403, -> MASTER_CONNECT_RETRY=10; Query OK, 0 rows affected (0.01 sec) MariaDB [(none)]> MariaDB [(none)]> SHOW SLAVE STATUSG *************************** 1. row *************************** Slave_IO_State: Master_Host: 172.30.1.102 Master_User: copy Master_Port: 3306 Connect_Retry: 10 Master_Log_File: master-102.000003 Read_Master_Log_Pos: 403 Relay_Log_File: relay-log-103.000001 Relay_Log_Pos: 4 Relay_Master_Log_File: master-102.000003 Slave_IO_Running: No Slave_SQL_Running: No Replicate_Do_DB: devops 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: 403 Relay_Log_Space: 245 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: NULL 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: 0 row in set (0.00 sec) MariaDB [(none)]> MariaDB [(none)]> START SLAVE; Query OK, 0 rows affected (0.00 sec) MariaDB [(none)]> MariaDB [(none)]> SHOW SLAVE STATUSG *************************** 1. row *************************** Slave_IO_State: Waiting for master to send event Master_Host: 172.30.1.102 Master_User: copy Master_Port: 3306 Connect_Retry: 10 Master_Log_File: master-102.000003 Read_Master_Log_Pos: 403 Relay_Log_File: relay-log-103.000002 Relay_Log_Pos: 530 Relay_Master_Log_File: master-102.000003 Slave_IO_Running: Yes Slave_SQL_Running: Yes Replicate_Do_DB: devops 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: 403 Relay_Log_Space: 822 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: 102 row in set (0.00 sec) MariaDB [(none)]>
3>.验证数据库配置是否生效
[root@node102.yinzhengjie.org.cn ~]# mysql Welcome to the MariaDB monitor. Commands end with ; or g. Your MariaDB connection id is 4 Server version: 5.5.64-MariaDB MariaDB Server Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others. Type 'help;' or 'h' for help. Type 'c' to clear the current input statement. MariaDB [(none)]> MariaDB [(none)]> SHOW DATABASES; +--------------------+ | Database | +--------------------+ | information_schema | | mysql | | performance_schema | | test | +--------------------+ rows in set (0.00 sec) MariaDB [(none)]> MariaDB [(none)]> CREATE DATABASE db1; Query OK, 1 row affected (0.00 sec) MariaDB [(none)]> MariaDB [(none)]> CREATE DATABASE db2; Query OK, 1 row affected (0.00 sec) MariaDB [(none)]> CREATE DATABASE db3; Query OK, 1 row affected (0.00 sec) MariaDB [(none)]> CREATE DATABASE devops; Query OK, 1 row affected (0.00 sec) MariaDB [(none)]> USE devops Database changed MariaDB [devops]> MariaDB [devops]> CREATE TABLE students(id INT UNSIGNED AUTO_INCREMENT PRIMARY KEY,name VARCHAR(30) NOT NULL,sex ENUM('boy','girl') DEFAULT 'boy',age TINYINT UNSIGNED,mobile CHAR(11),address VARCHAR(50)); Query OK, 0 rows affected (0.01 sec) MariaDB [devops]> MariaDB [devops]> INSERT INTO students (name,age,mobile,address) VALUES ('Jason Yin',18,10000,'beijing'),('Jay','40',10086,'Taiwan'); Query OK, 2 rows affected (0.01 sec) Records: 2 Duplicates: 0 Warnings: 0 MariaDB [devops]> MariaDB [devops]> SELECT * FROM students; +----+-----------+------+------+--------+---------+ | id | name | sex | age | mobile | address | +----+-----------+------+------+--------+---------+ | 1 | Jason Yin | boy | 18 | 10000 | beijing | | 2 | Jay | boy | 40 | 10086 | Taiwan | +----+-----------+------+------+--------+---------+ rows in set (0.00 sec) MariaDB [devops]> MariaDB [devops]> USE db2 Database changed MariaDB [db2]> MariaDB [db2]> CREATE TABLE test SELECT * FROM devops.students; Query OK, 2 rows affected (0.00 sec) Records: 2 Duplicates: 0 Warnings: 0 MariaDB [db2]> MariaDB [db2]> SELECT * FROM test; +----+-----------+------+------+--------+---------+ | id | name | sex | age | mobile | address | +----+-----------+------+------+--------+---------+ | 1 | Jason Yin | boy | 18 | 10000 | beijing | | 2 | Jay | boy | 40 | 10086 | Taiwan | +----+-----------+------+------+--------+---------+ rows in set (0.00 sec) MariaDB [db2]> MariaDB [db2]> SHOW DATABASES; +--------------------+ | Database | +--------------------+ | information_schema | | db1 | | db2 | | db3 | | devops | | mysql | | performance_schema | | test | +--------------------+ 8 rows in set (0.00 sec) MariaDB [db2]> MariaDB [db2]> QUIT Bye [root@node102.yinzhengjie.org.cn ~]#
[root@node103.yinzhengjie.org.cn ~]# mysql Welcome to the MariaDB monitor. Commands end with ; or g. Your MariaDB connection id is 5 Server version: 5.5.64-MariaDB MariaDB Server Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others. Type 'help;' or 'h' for help. Type 'c' to clear the current input statement. MariaDB [(none)]> MariaDB [(none)]> SHOW DATABASES; +--------------------+ | Database | +--------------------+ | information_schema | | db2 | | devops | | mysql | | performance_schema | | test | +--------------------+ 6 rows in set (0.00 sec) MariaDB [(none)]> MariaDB [(none)]> USE devops 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 MariaDB [devops]> MariaDB [devops]> SHOW TABLES; +------------------+ | Tables_in_devops | +------------------+ | students | +------------------+ 1 row in set (0.00 sec) MariaDB [devops]> MariaDB [devops]> SELECT * FROM students; +----+-----------+------+------+--------+---------+ | id | name | sex | age | mobile | address | +----+-----------+------+------+--------+---------+ | 1 | Jason Yin | boy | 18 | 10000 | beijing | | 2 | Jay | boy | 40 | 10086 | Taiwan | +----+-----------+------+------+--------+---------+ 2 rows in set (0.00 sec) MariaDB [devops]> MariaDB [devops]> USE db2 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 MariaDB [db2]> MariaDB [db2]> SHOW TABLES; +---------------+ | Tables_in_db2 | +---------------+ | test | +---------------+ 1 row in set (0.00 sec) MariaDB [db2]> MariaDB [db2]> SELECT * FROM test; +----+-----------+------+------+--------+---------+ | id | name | sex | age | mobile | address | +----+-----------+------+------+--------+---------+ | 1 | Jason Yin | boy | 18 | 10000 | beijing | | 2 | Jay | boy | 40 | 10086 | Taiwan | +----+-----------+------+------+--------+---------+ 2 rows in set (0.00 sec) MariaDB [db2]> MariaDB [db2]> QUIT Bye [root@node103.yinzhengjie.org.cn ~]#