MySQL9.1.0实现GTID模式的项目实践

[root@master mysql_rpm]#  yum localinstall mysql-community-server-9.1.0-1.el7.x86_64.rpm \
 mysql-community-common-9.1.0-1.el7.x86_64.rpm \
 mysql-community-client-9.1.0-1.el7.x86_64.rpm \
 mysql-community-icu-data-files-9.1.0-1.el7.x86_64.rpm \
 mysql-community-libs-9.1.0-1.el7.x86_64.rpm \
 mysql-community-client-plugins-9.1.0-1.el7.x86_64.rpm

 [root@master ~]# cat >> /etc/hosts <<EOF
 > 192.168.239.100 master
 > 192.168.239.110 slave1
 > 192.168.239.120 slave2
 > EOF
 ​
 [root@slave1 ~]# cat >> /etc/hosts <<EOF
 > 192.168.239.100 master
 > 192.168.239.110 slave1
 > 192.168.239.120 slave2
 > EOF
 ​
 [root@slave2 ~]# cat >> /etc/hosts <<EOF
 > 192.168.239.100 master
 > 192.168.239.110 slave1
 > 192.168.239.120 slave2
 > EOF

 # 改变密码策略
 [root@master ~]# cat >> /etc/my.cnf <<EOF
 validate_password.policy=LOW
 validate_password.length=0
 EOF
 ​
 # 启动MySQL服务
 [root@master ~]# systemctl start mysqld
 [root@master ~]# grep password /var/log/mysqld.log 
 2024-12-14T14:29:20.406601Z 6 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: (:lt/hLIW4da
 [root@master ~]# mysql -uroot -p'(:lt/hLIW4da'
 ​
 # 修改数据库密码
 mysql> alter user 'root'@'localhost' identified by '123456';
 mysql> flush privileges;

 [root@master ~]# cat >> /etc/my.cnf <<EOF
 log_bin=mysql-bin
 symbolic-links=0    # 禁用符号链接
 server_id=10 # 设置serverID 为机器的标识符
 ​
 log_bin=mysql-bin # 开启 log_bin 日志
 # 开启GTID的前提
 gtid_mode=ON
 enforce-gtid-consistency=ON
 EOF
 ​
 ​
 [root@slave1 ~]# cat >> /etc/my.cnf <<EOF
 log_bin=mysql-bin
 symbolic-links=0    # 禁用符号链接
 server_id=20 # 设置serverID 为机器的标识符
 ​
 # 开启GTID的前提
 gtid_mode=ON
 enforce-gtid-consistency=ON
 EOF
 ​
 ​
 [root@slave2 ~]# cat >> /etc/my.cnf <<EOF
 log_bin=mysql-bin
 symbolic-links=0    # 禁用符号链接
 server_id=30 # 设置serverID 为机器的标识符
 ​
 # 开启GTID的前提
 gtid_mode=ON
 enforce-gtid-consistency=ON
 EOF
 ​
 # 重启 MySQL 服务重新加载
 [root@master ~]# systemctl restart mysqld
 [root@slave1 ~]# systemctl restart mysqld
 [root@slave2 ~]# systemctl restart mysqld

 mysql> set sql_log_bin=0;    # 关闭二进制SQL日志写入
 Query OK, 0 rows affected (0.00 sec)
 ​
 mysql> show variables like 'sql_log_bin';
 +---------------+-------+
 | Variable_name | Value |
 +---------------+-------+
 | sql_log_bin   | OFF   |
 +---------------+-------+
 ​
 mysql> CREATE USER 'repl'@'%' IDENTIFIED BY '123456';
 ​
 # 赋予所有库所有表 repl 用户 REPLICATION SLAVE 的权限
 mysql> GRANT REPLICATION SLAVE ON *.* TO 'repl'@'%';
 mysql> FLUSH PRIVILEGES;
 mysql> set sql_log_bin=1;

 mysql> set sql_log_bin=0;
 Query OK, 0 rows affected (0.00 sec)
 ​
 mysql> show variables like 'sql_log_bin';
 +---------------+-------+
 | Variable_name | Value |
 +---------------+-------+
 | sql_log_bin   | OFF   |
 +---------------+-------+
 ​
 mysql> CREATE USER 'repl'@'%' IDENTIFIED BY '123456';
 mysql> FLUSH PRIVILEGES;
 mysql> set sql_log_bin=1;

 mysql> set sql_log_bin=0;
 Query OK, 0 rows affected (0.00 sec)
 ​
 mysql> show variables like 'sql_log_bin';
 +---------------+-------+
 | Variable_name | Value |
 +---------------+-------+
 | sql_log_bin   | OFF   |
 +---------------+-------+
 ​
 mysql> CREATE USER 'repl'@'%' IDENTIFIED BY '123456';
 mysql> FLUSH PRIVILEGES;
 mysql> set sql_log_bin=1;

 mysql> SET SQL_LOG_BIN=0;   # 关闭语句记录
 ​
 # 指定主服务器的IP端口以及授权过的用户repl，并开启自动定位
 mysql> CHANGE REPLICATION SOURCE TO 
 SOURCE_HOST='192.168.239.100',
 SOURCE_PORT=3306,
 SOURCE_USER='repl',
 SOURCE_PASSWORD='123456',
 GET_SOURCE_PUBLIC_KEY=1,    # 信任证书
 SOURCE_AUTO_POSITION=1;     # 开启自动定位功能
 ​
 mysql> START REPLICA;
 ​
 # 假如说失败需要执行     STOP REPLICA;   停止复制
 # 之后再执行     RESET REPLICA;  删除配置的语句
 ​
 # 查看连接 master 是否正常
 mysql> SHOW REPLICA STATUS\G
 *************************** 1. row ***************************
              Replica_IO_State: Waiting for source to send event
                   Source_Host: 192.168.239.100
                   Source_User: repl
                   Source_Port: 3306
                 Connect_Retry: 60
               Source_Log_File: mysql-bin.000001
           Read_Source_Log_Pos: 158
                Relay_Log_File: slave2-relay-bin.000002
                 Relay_Log_Pos: 375
         Relay_Source_Log_File: mysql-bin.000001
            Replica_IO_Running: Yes      # IO表示链接网络没有问题
           Replica_SQL_Running: Yes      # SQL表示本地同步没有问题，如有问题基本上就是配置文件的问题
 ​
 ​
 mysql> SET SQL_LOG_BIN=0; # 开启语句记录

 [root@master ~]# mysql -uroot -p123456 
 mysql> create database gtid;
 Query OK, 1 row affected (0.00 sec)
 ​
 mysql> use gtid
 Database changed
 mysql> source gtid.sql;
 Query OK, 0 rows affected (0.00 sec)
 ​
 Query OK, 0 rows affected (0.00 sec)
 ​
 ​
 mysql> show tables;
 +----------------------------------------+
 | Tables_in_gtid                         |
 +----------------------------------------+
 | aaa                                    |
 | abi_http_log                           |
 | act_app_appdef                         |
 | act_app_databasechangelog              |
 | act_app_databasechangeloglock          |
 +----------------------------------------+

[root@ slave1 && slave2]# mysql -uroot -p123456
mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| gtid               |
| information_schema |
| mysql              |
| performance_schema |
| sys                |
+--------------------+
5 rows in set (0.01 sec)

mysql> use gtid 
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_gtid                         |
+----------------------------------------+
| aaa                                    |
| abi_http_log                           |
| act_app_appdef                         |
| act_app_databasechangelog              |
| act_app_databasechangeloglock          |
+----------------------------------------+