MySQL GTID 主从同步
概念：
从MySQL5.6.5开始新增了一种基于GTID的复制方式。通过GTID保证了每个在主库上提交的事务在集群中有一个唯一的ID；
这种方式强化了数据库的主备一致性，故障恢复以及容错能力。
借助GTID，在发生主备切换的情况下，MySQL的其他从库可以自动在新主库上找到正确的复制位置，这大大简化了复杂复制拓扑下集群的维护，也减少了人为设置复制位置发生误操作的风险。
什么是GITD？
GTID（global transaction ID）是对于一个已提交事务的编号，并且是一个全局唯一的编号，GTID实际上是由UUID+TID组成的。其中UUID是一个MySQL实例的唯一标识，TID代表了该实例上已经提交的事务数量，并且随着事务提交单调递增。例子：03a1eb63-c21a-11ec-b07f-000c2987bea6:1-25，冒号分割前边为UUID，后边为TID。可以使用show master status实时查看当前事务执行数。
GTID的工作原理:
-
当一个事务在主库端执行并提交时，产生GTID，一同记录到binlog日志中。
-
binlog传输到slave，并存储到salve的relaylog后，读取这个GTID的这个值设置GTID——next变量，即告诉slave，下一个要执行的GTID值。
-
sql线程从relaylog中获取GTID，然后对比slave端的binlog是否有该GTID。
-
如果有记录说明该GTID的事务已经执行，slave会忽略。
-
如果没有记录，slave会执行该GTID事务，并记录到该GTID到自身的binlog，在读取该事务前会检查其他session持有该GTID，确保不被重复执行。
-
在解析过程中会判断是否有主键，如果没有就用二级索引，如果有就用全部扫描。
GTID比传统复制的优势：
更简单的实现failover，不需要找log_file和log_Pos；
更简单的搭建主从复制；
比传统复制更安全；
GTID是连续没有空洞的，因此主从库出现数据冲突时，可以用添加空事务的方式进行跳过。
配置一主一从GTID
数据库角色 ip MySQL版本 有无数据 主数据库(home1) 192.168.10.11 MySQL5.7 无 从数据库(home2) 192.168.10.12 MySQL5.7 无
在主数据库中创建一个同步账户授权给从数据库使用
[root@home1 ~]# mysql -uroot -p Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 7 Server version: 5.7.24 MySQL Community Server (GPL) Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. mysql> grant replication slave on *.* to 'weme'@'192.168.10.%' identified by '#自己设置密码'; Query OK, 0 rows affected, 1 warning (0.00 sec) mysql> flush privileges; Query OK, 0 rows affected (0.00 sec) mysql> exit Bye
配置主库文件
[root@home1 ~]# vim /etc/my.cnf [mysqld] port=3306 datadir=/var/lib/mysql socket=/var/lib/mysql/mysql.sock skip-name-resolve symbolic-links=0 log-error=/var/log/mysqld.log pid-file=/var/run/mysqld/mysqld.pid skip-name-resolve log-bin=mysql-bin #开启二进制日志 server-id=11 #服务器ID，必须唯一 gtid-mode=on #开启gtid模式 enforce-gtid-consistency=on #强制gtid一致性，开启后对特定的create table不支持 binlog-format=row #默认为mixed混合模式，更改成row复制，为了数据一致性 log-slave-updates=1 #从库binlog记录主库同步的操作日志 skip-slave-start=1 #跳过slave复制线程 [root@home1 ~]# systemctl restart mysqld [root@home1 ~]# systemctl status mysqld ● mysqld.service - MySQL Server Loaded: loaded (/usr/lib/systemd/system/mysqld.service; enabled; vendor preset: disabled) Active: active (running) since Thu 2022-11-24 21:16:03 EST; 8s ago Docs: man:mysqld(8) http://dev.mysql.com/doc/refman/en/using-systemd.html Process: 990 ExecStart=/usr/sbin/mysqld --daemonize --pid-file=/var/run/mysqld/mysqld.pid $MYSQLD_OPTS (code=exited, status=0/SUCCESS) Process: 973 ExecStartPre=/usr/bin/mysqld_pre_systemd (code=exited, status=0/SUCCESS) Main PID: 994 (mysqld) CGroup: /system.slice/mysqld.service └─994 /usr/sbin/mysqld --daemonize --pid-file=/var/run/mysqld/mysqld.pid Nov 24 21:16:03 home1 systemd[1]: Starting MySQL Server... Nov 24 21:16:03 home1 systemd[1]: Started MySQL Server.
查看GTID模式状态
[root@home1 ~]# mysql -uroot -p#自己的密码 -e 'show variables like "%GTID%";' mysql: [Warning] Using a password on the command line interface can be insecure. +----------------------------------+-----------+ | Variable_name | Value | +----------------------------------+-----------+ | binlog_gtid_simple_recovery | ON | | enforce_gtid_consistency | ON | | gtid_executed_compression_period | 1000 | | gtid_mode | ON | | gtid_next | AUTOMATIC | | gtid_owned | | | gtid_purged | | | session_track_gtids | OFF | +----------------------------------+-----------+
配置从库文件
[root@home2 ~]# vim /etc/my.cnf [mysqld] port=3306 datadir=/var/lib/mysql socket=/var/lib/mysql/mysql.sock symbolic-links=0 log-error=/var/log/mysqld.log pid-file=/var/run/mysqld/mysqld.pid skip-name-resolve log-bin=mysql-bin server-id=12 gtid-mode=on enforce-gtid-consistency=on binlog-format=row log-slave-updates=1 skip-slave-start=1 [root@home2 ~]# systemctl restart mysqld [root@home2 ~]# systemctl status mysqld ● mysqld.service - MySQL Server Loaded: loaded (/usr/lib/systemd/system/mysqld.service; enabled; vendor preset: disabled) Active: active (running) since Thu 2022-11-24 21:23:34 EST; 8s ago Docs: man:mysqld(8) http://dev.mysql.com/doc/refman/en/using-systemd.html Process: 929 ExecStart=/usr/sbin/mysqld --daemonize --pid-file=/var/run/mysqld/mysqld.pid $MYSQLD_OPTS (code=exited, status=0/SUCCESS) Process: 912 ExecStartPre=/usr/bin/mysqld_pre_systemd (code=exited, status=0/SUCCESS) Main PID: 933 (mysqld) CGroup: /system.slice/mysqld.service └─933 /usr/sbin/mysqld --daemonize --pid-file=/var/run/mysqld/mysqld.pid Nov 24 21:23:33 home2 systemd[1]: Starting MySQL Server... Nov 24 21:23:34 home2 systemd[1]: Started MySQL Server.
查看GTID模式状态
[root@home2 ~]# mysql -uroot -p#自己的密码 -e 'show variables like "%GTID%";' mysql: [Warning] Using a password on the command line interface can be insecure. +----------------------------------+-----------+ | Variable_name | Value | +----------------------------------+-----------+ | binlog_gtid_simple_recovery | ON | | enforce_gtid_consistency | ON | | gtid_executed_compression_period | 1000 | | gtid_mode | ON | | gtid_next | AUTOMATIC | | gtid_owned | | | gtid_purged | | | session_track_gtids | OFF | +----------------------------------+-----------+
开启主从同步
[root@home2 ~]# mysql -uroot -p Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 4 Server version: 5.7.24-log MySQL Community Server (GPL) Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. mysql> change master to master_host='192.168.10.11',master_user='weme',master_password='#主数据库的密码',master_auto_position=1; Query OK, 0 rows affected, 2 warnings (0.40 sec) mysql> start slave; 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: 192.168.10.11 Master_User: weme Master_Port: 3306 Connect_Retry: 60 Master_Log_File: mysql-bin.000001 Read_Master_Log_Pos: 154 Relay_Log_File: home2-relay-bin.000002 Relay_Log_Pos: 367 Relay_Master_Log_File: mysql-bin.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: 574 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: 11 Master_UUID: 048d3f7f-6af4-11ed-b7b2-000c292094f4 Master_Info_File: /var/lib/mysql/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: Auto_Position: 1 Replicate_Rewrite_DB: Channel_Name: Master_TLS_Version: 1 row in set (0.00 sec)
查看主从库的信息是否同步
查看主库
[root@home1 ~]# mysql -uroot -p Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 4 Server version: 5.7.24-log MySQL Community Server (GPL) Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. mysql> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | mysql | | performance_schema | | sys | +--------------------+ 4 rows in set (0.31 sec)
查看从库
mysql> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | mysql | | performance_schema | | sys | +--------------------+ 4 rows in set (1.68 sec)
测试主从同步
在主库下执行一下SQL语句
mysql> CREATE DATABASE BOOK;
Query OK, 1 row affected (0.01 sec)
mysql> USE BOOK;
Database changed
mysql> CREATE TABLE book(name char(66),price int,pages int);
Query OK, 0 rows affected (0.01 sec)
mysql> INSERT INTO book(name,price,pages) VALUES('Linux','30','666');
Query OK, 1 row affected (0.37 sec)
mysql> INSERT INTO book(name,price,pages) VALUES('Cloud Computing','60','666');
Query OK, 1 row affected (0.01 sec)
mysql> INSERT INTO book(name,price,pages) VALUES('Operation System','80','666');
Query OK, 1 row affected (0.00 sec)
mysql> INSERT INTO book(name,price,pages) VALUES('Artificial Intelligence','166','666');
Query OK, 1 row affected (0.00 sec)
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| BOOK |
| mysql |
| performance_schema |
| sys |
+--------------------+
5 rows in set (0.00 sec)
mysql> select * from BOOK.book;
+-------------------------+-------+-------+
| name | price | pages |
+-------------------------+-------+-------+
| Linux | 30 | 666 |
| Cloud Computing | 60 | 666 |
| Operation System | 80 | 666 |
| Artificial Intelligence | 166 | 666 |
+-------------------------+-------+-------+
4 rows in set (0.00 sec)
在从库上查看数据是否同步过来
mysql> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | BOOK | | mysql | | performance_schema | | sys | +--------------------+ 5 rows in set (0.00 sec) mysql> select * from BOOK.book; +-------------------------+-------+-------+ | name | price | pages | +-------------------------+-------+-------+ | Linux | 30 | 666 | | Cloud Computing | 60 | 666 | | Operation System | 80 | 666 | | Artificial Intelligence | 166 | 666 | +-------------------------+-------+-------+ 4 rows in set (0.00 sec)
查看主库状态
mysql> show master status; +------------------+----------+--------------+------------------+------------------------------------------+ | File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set | +------------------+----------+--------------+------------------+------------------------------------------+ | mysql-bin.000001 | 1619 | | | 048d3f7f-6af4-11ed-b7b2-000c292094f4:1-6 | +------------------+----------+--------------+------------------+------------------------------------------+ 1 row in set (0.00 sec)
查看从库状态
mysql> show master status; +------------------+----------+--------------+------------------+------------------------------------------+ | File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set | +------------------+----------+--------------+------------------+------------------------------------------+ | mysql-bin.000001 | 1583 | | | 048d3f7f-6af4-11ed-b7b2-000c292094f4:1-6 | +------------------+----------+--------------+------------------+------------------------------------------+ 1 row in set (0.00 sec)
从库停掉主从同步
mysql> stop slave; Query OK, 0 rows affected (0.00 sec) mysql> show slave status\G *************************** 1. row *************************** Slave_IO_State: Master_Host: 192.168.10.11 Master_User: weme Master_Port: 3306 Connect_Retry: 60 Master_Log_File: mysql-bin.000001 Read_Master_Log_Pos: 1619 Relay_Log_File: home2-relay-bin.000002 Relay_Log_Pos: 1832 Relay_Master_Log_File: mysql-bin.000001 Slave_IO_Running: No Slave_SQL_Running: No 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: 1619 Relay_Log_Space: 2039 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: 11 Master_UUID: 048d3f7f-6af4-11ed-b7b2-000c292094f4 Master_Info_File: /var/lib/mysql/master.info SQL_Delay: 0 SQL_Remaining_Delay: NULL Slave_SQL_Running_State: Master_Retry_Count: 86400 Master_Bind: Last_IO_Error_Timestamp: Last_SQL_Error_Timestamp: Master_SSL_Crl: Master_SSL_Crlpath: Retrieved_Gtid_Set: 048d3f7f-6af4-11ed-b7b2-000c292094f4:1-6 Executed_Gtid_Set: 048d3f7f-6af4-11ed-b7b2-000c292094f4:1-6 Auto_Position: 1 Replicate_Rewrite_DB: Channel_Name: Master_TLS_Version: 1 row in set (0.00 sec)
在主库创建数据后，从库开启主从同步查看是否同步
mysql> CREATE DATABASE `testbookdb` DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci;
Query OK, 1 row affected (0.00 sec)
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| BOOK |
| mysql |
| performance_schema |
| sys |
| testbookdb |
+--------------------+
6 rows in set (0.00 sec)
mysql> use testbookdb;
Database changed
mysql> CREATE TABLE book1 (bTypeId int,bName char(16),price int,publishing char(16));
Query OK, 0 rows affected (0.04 sec)
mysql> INSERT INTO book1(bTypeId,bName,price,publishing) VALUES('1','《Linux从入门到精通》','66',' 电子工业出版社');
Query OK, 1 row affected (0.00 sec)
mysql> INSERT INTO book1(bTypeId,bName,price,publishing) VALUES('2','《云计算趋势》','68','人民邮电出版社');
Query OK, 1 row affected (0.00 sec)
mysql> INSERT INTO book1(bTypeId,bName,price,publishing) VALUES('3','《操作系统设计与实现》','90','机械工业出版社');
Query OK, 1 row affected (0.00 sec)
mysql> INSERT INTO book1(bTypeId,bName,price,publishing) VALUES('4','《高性能MySQL》','71','清华大 学出版社');
Query OK, 1 row affected (0.00 sec)
mysql> INSERT INTO book1(bTypeId,bName,price,publishing) VALUES('5','《高性能MySQL2》','72','清华大学出版社');
Query OK, 1 row affected (0.00 sec)
mysql> INSERT INTO book1(bTypeId,bName,price,publishing) VALUES('6','《高性能MySQL3》','73','清华大学出版社');
Query OK, 1 row affected (0.00 sec)
mysql> INSERT INTO book1(bTypeId,bName,price,publishing) VALUES('7','《高性能MySQL4》','74','清华大学出版社');
Query OK, 1 row affected (0.00 sec)
mysql> INSERT INTO book1(bTypeId,bName,price,publishing) VALUES('8','《高性能MySQL5》','75','清华大学出版社');
Query OK, 1 row affected (0.00 sec)
mysql> INSERT INTO book1(bTypeId,bName,price,publishing) VALUES('9','《高性能MySQL6》','76','清华大学出版社');
Query OK, 1 row affected (0.00 sec)
mysql> INSERT INTO book1(bTypeId,bName,price,publishing) VALUES('10','《高性能MySQL7》','77','清华 大学出版社');
Query OK, 1 row affected (0.00 sec)
mysql> INSERT INTO book1(bTypeId,bName,price,publishing) VALUES('11','《高性能MySQL8》','78','清华 大学出版社');
Query OK, 1 row affected (0.00 sec)
mysql> INSERT INTO book1(bTypeId,bName,price,publishing) VALUES('12','《高性能MySQL9》','79','清华 大学出版社');
Query OK, 1 row affected (0.00 sec)
mysql> CREATE TABLE book2 (name char(16),price int,pages int);
Query OK, 0 rows affected (0.01 sec)
mysql> INSERT INTO book2(name,price,pages) VALUES('《Linux从入门到精通》','30','666');
Query OK, 1 row affected (0.00 sec)
mysql> INSERT INTO book2(name,price,pages) VALUES('《云计算趋势》','60','666');
Query OK, 1 row affected (0.00 sec)
mysql> INSERT INTO book2(name,price,pages) VALUES('《操作系统设计与实现》','80','666');
Query OK, 1 row affected (0.01 sec)
mysql> INSERT INTO book2(name,price,pages) VALUES('《高性能MySQL》','166','666');
Query OK, 1 row affected (0.01 sec)
mysql> show tables;
+----------------------+
| Tables_in_testbookdb |
+----------------------+
| book1 |
| book2 |
+----------------------+
2 rows in set (0.00 sec)
mysql> select * from book1;
+---------+-----------------------------------+-------+-----------------------+
| bTypeId | bName | price | publishing |
+---------+-----------------------------------+-------+-----------------------+
| 1 | 《Linux从入门到精通》 | 66 | 电子工业出版社 |
| 2 | 《云计算趋势》 | 68 | 人民邮电出版社 |
| 3 | 《操作系统设计与实现》 | 90 | 机械工业出版社 |
| 4 | 《高性能MySQL》 | 71 | 清华大学出版社 |
| 5 | 《高性能MySQL2》 | 72 | 清华大学出版社 |
| 6 | 《高性能MySQL3》 | 73 | 清华大学出版社 |
| 7 | 《高性能MySQL4》 | 74 | 清华大学出版社 |
| 8 | 《高性能MySQL5》 | 75 | 清华大学出版社 |
| 9 | 《高性能MySQL6》 | 76 | 清华大学出版社 |
| 10 | 《高性能MySQL7》 | 77 | 清华大学出版社 |
| 11 | 《高性能MySQL8》 | 78 | 清华大学出版社 |
| 12 | 《高性能MySQL9》 | 79 | 清华大学出版社 |
+---------+-----------------------------------+-------+-----------------------+
12 rows in set (0.00 sec)
mysql> select * from book2;
+-----------------------------------+-------+-------+
| name | price | pages |
+-----------------------------------+-------+-------+
| 《Linux从入门到精通》 | 30 | 666 |
| 《云计算趋势》 | 60 | 666 |
| 《操作系统设计与实现》 | 80 | 666 |
| 《高性能MySQL》 | 166 | 666 |
+-----------------------------------+-------+-------+
4 rows in set (0.00 sec)
查看主库状态
mysql> show master status; +------------------+----------+--------------+------------------+-------------------------------------------+ | File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set | +------------------+----------+--------------+------------------+-------------------------------------------+ | mysql-bin.000001 | 7388 | | | 048d3f7f-6af4-11ed-b7b2-000c292094f4:1-25 | +------------------+----------+--------------+------------------+-------------------------------------------+ 1 row in set (0.00 sec)
查看从库状态
mysql> show master status; +------------------+----------+--------------+------------------+------------------------------------------+ | File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set | +------------------+----------+--------------+------------------+------------------------------------------+ | mysql-bin.000001 | 1583 | | | 048d3f7f-6af4-11ed-b7b2-000c292094f4:1-6 | +------------------+----------+--------------+------------------+------------------------------------------+ 1 row in set (0.00 sec)
从库开启主从同步查看是否同步
mysql> start slave; Query OK, 0 rows affected (0.01 sec) mysql> show slave status\G *************************** 1. row *************************** Slave_IO_State: Waiting for master to send event Master_Host: 192.168.10.11 Master_User: weme Master_Port: 3306 Connect_Retry: 60 Master_Log_File: mysql-bin.000001 Read_Master_Log_Pos: 7388 Relay_Log_File: home2-relay-bin.000003 Relay_Log_Pos: 6223 Relay_Master_Log_File: mysql-bin.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: 7388 Relay_Log_Space: 8108 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: 11 Master_UUID: 048d3f7f-6af4-11ed-b7b2-000c292094f4 Master_Info_File: /var/lib/mysql/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: 048d3f7f-6af4-11ed-b7b2-000c292094f4:1-25 Executed_Gtid_Set: 048d3f7f-6af4-11ed-b7b2-000c292094f4:1-25 Auto_Position: 1 Replicate_Rewrite_DB: Channel_Name: Master_TLS_Version: 1 row in set (0.00 sec) mysql> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | BOOK | | mysql | | performance_schema | | sys | | testbookdb | +--------------------+ 6 rows in set (0.01 sec) mysql> use testbookdb; 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> show tables; +----------------------+ | Tables_in_testbookdb | +----------------------+ | book1 | | book2 | +----------------------+ 2 rows in set (0.00 sec) mysql> select * from book1; +---------+-----------------------------------+-------+-----------------------+ | bTypeId | bName | price | publishing | +---------+-----------------------------------+-------+-----------------------+ | 1 | 《Linux从入门到精通》 | 66 | 电子工业出版社 | | 2 | 《云计算趋势》 | 68 | 人民邮电出版社 | | 3 | 《操作系统设计与实现》 | 90 | 机械工业出版社 | | 4 | 《高性能MySQL》 | 71 | 清华大学出版社 | | 5 | 《高性能MySQL2》 | 72 | 清华大学出版社 | | 6 | 《高性能MySQL3》 | 73 | 清华大学出版社 | | 7 | 《高性能MySQL4》 | 74 | 清华大学出版社 | | 8 | 《高性能MySQL5》 | 75 | 清华大学出版社 | | 9 | 《高性能MySQL6》 | 76 | 清华大学出版社 | | 10 | 《高性能MySQL7》 | 77 | 清华大学出版社 | | 11 | 《高性能MySQL8》 | 78 | 清华大学出版社 | | 12 | 《高性能MySQL9》 | 79 | 清华大学出版社 | +---------+-----------------------------------+-------+-----------------------+ 12 rows in set (0.00 sec) mysql> select * from book2; +-----------------------------------+-------+-------+ | name | price | pages | +-----------------------------------+-------+-------+ | 《Linux从入门到精通》 | 30 | 666 | | 《云计算趋势》 | 60 | 666 | | 《操作系统设计与实现》 | 80 | 666 | | 《高性能MySQL》 | 166 | 666 | +-----------------------------------+-------+-------+ 4 rows in set (0.00 sec) mysql> show master status; +------------------+----------+--------------+------------------+-------------------------------------------+ | File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set | +------------------+----------+--------------+------------------+-------------------------------------------+ | mysql-bin.000001 | 7112 | | | 048d3f7f-6af4-11ed-b7b2-000c292094f4:1-25 | +------------------+----------+--------------+------------------+-------------------------------------------+ 1 row in set (0.00 sec)
由此，MySQL GTID主从同步搭建完成。