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  • mysql8.0.17gtid方式实现主从同步

    数据库的安装:

    [root@node1 8.0.17]# rpm -ivh mysql-community-common-8.0.17-1.el7.x86_64.rpm
    警告:mysql-community-common-8.0.17-1.el7.x86_64.rpm: 头V3 DSA/SHA1 Signature, 密钥 ID 5072e1f5: NOKEY
    准备中...                          ################################# [100%]
    正在升级/安装...
       1:mysql-community-common-8.0.17-1.e################################# [100%]
    [root@node1 8.0.17]# rpm -ivh mysql-community-libs-8.0.17-1.el7.x86_64.rpm
    警告:mysql-community-libs-8.0.17-1.el7.x86_64.rpm: 头V3 DSA/SHA1 Signature, 密钥 ID 5072e1f5: NOKEY
    准备中...                          ################################# [100%]
    正在升级/安装...
       1:mysql-community-libs-8.0.17-1.el7################################# [100%]
    [root@node1 8.0.17]# rpm -ivh mysql-community-client-8.0.17-1.el7.x86_64.rpm
    警告:mysql-community-client-8.0.17-1.el7.x86_64.rpm: 头V3 DSA/SHA1 Signature, 密钥 ID 5072e1f5: NOKEY
    准备中...                          ################################# [100%]
    正在升级/安装...
       1:mysql-community-client-8.0.17-1.e################################# [100%]
    [root@node1 8.0.17]# rpm -ivh mysql-community-server-8.0.17-1.el7.x86_64.rpm
    警告:mysql-community-server-8.0.17-1.el7.x86_64.rpm: 头V3 DSA/SHA1 Signature, 密钥 ID 5072e1f5: NOKEY
    准备中...                          ################################# [100%]
    正在升级/安装...
       1:mysql-community-server-8.0.17-1.e################################# [100%]
    [root@node1 8.0.17]# rpm -ivh mysql-community-devel-8.0.17-1.el7.x86_64.rpm --force --nodeps
    警告:mysql-community-devel-8.0.17-1.el7.x86_64.rpm: 头V3 DSA/SHA1 Signature, 密钥 ID 5072e1f5: NOKEY
    准备中...                          ################################# [100%]
    正在升级/安装...
       1:mysql-community-devel-8.0.17-1.el################################# [100%]
    [root@node1 8.0.17]# systemctl start mysqld
    [root@node1 8.0.17]# more /var/log/mysqld.log |grep password
    2019-07-28T07:48:29.031474Z 5 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: Z3(E!khsm_EE
    [root@node1 8.0.17]# mysql -uroot -p
    Enter password:
    Welcome to the MySQL monitor.  Commands end with ; or g.
    Your MySQL connection id is 8
    Server version: 8.0.17

    Copyright (c) 2000, 2019, 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> alter user 'root'@'localhost' identified by 'kavl7kAkkle!';    登录成功之后必须先修改密码,才能使用。
    Query OK, 0 rows affected (0.02 sec)
    mysql> show databases;
    +--------------------+
    | Database           |
    +--------------------+
    | information_schema |
    | mysql              |
    | performance_schema |
    | sys                |
    +--------------------+
    4 rows in set (0.01 sec)
    环境:

    master:

    master配置文件:

    [root@master 8.0.17]# grep -v '^#' /etc/my.cnf
    [mysqld]
    datadir=/var/lib/mysql
    socket=/var/lib/mysql/mysql.sock
    log-error=/var/log/mysqld.log
    pid-file=/var/run/mysqld/mysqld.pid
    server-id=1
    gtid-mode=on
    enforce-gtid-consistency=on
    log-slave-updates=on

    log_bin = binlog
    [root@master 8.0.17]# systemctl restart mysql

    [root@master 8.0.17]# mysql -uroot -pkavl7kAkkle!
    mysql> create user 'repl'@'192.168.199.%' identified by 'kavl7kAkkle!';  建立同步的账号

    mysql>grant replication slave on *.* to 'repl'@'192.168.199.%';
    mysql> flush privileges;
    Query OK, 0 rows affected (0.01 sec)
    测试一下建立的账号是否可以在slave上登录(可以登录)
    [root@node1 8.0.17]# mysql -urepl -h 192.168.199.6 -pkavl7kAkkle!
    mysql: [Warning] Using a password on the command line interface can be insecure.
    Welcome to the MySQL monitor.  Commands end with ; or g.
    Your MySQL connection id is 24
    Server version: 8.0.17 MySQL Community Server - GPL

    Copyright (c) 2000, 2019, 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>

    查看gtid是否开启:

    mysql> show variables like "%gtid%";
    +----------------------------------+------------------------------------------+
    | Variable_name                    | Value                                    |
    +----------------------------------+------------------------------------------+
    | binlog_gtid_simple_recovery      | ON                                       |
    | enforce_gtid_consistency         | ON                                       |
    | gtid_executed                    | c3a99d8b-b10e-11e9-9e44-000c297d60e3:1-7 |
    | gtid_executed_compression_period | 1000                                     |
    | gtid_mode                        | ON                                       |
    | gtid_next                        | AUTOMATIC                                |
    | gtid_owned                       |                                          |
    | gtid_purged                      |                                          |
    | session_track_gtids              | OFF                                      |
    +----------------------------------+------------------------------------------+
    9 rows in set (0.02 sec)
    查看服务器的UUID:

    mysql> show global variables like '%uuid%';
    +---------------+--------------------------------------+
    | Variable_name | Value                                |
    +---------------+--------------------------------------+
    | server_uuid   | c3a99d8b-b10e-11e9-9e44-000c297d60e3 |
    +---------------+--------------------------------------+
    1 row in set (0.01 sec)
    查看主服务器的状态:

    mysql> show master status;
    +---------------+----------+--------------+------------------+------------------------------------------+
    | File          | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set                        |
    +---------------+----------+--------------+------------------+------------------------------------------+
    | binlog.000003 |      878 |              |                  | c3a99d8b-b10e-11e9-9e44-000c297d60e3:1-7 |
    +---------------+----------+--------------+------------------+------------------------------------------+

    node1:

    [root@node1 8.0.17]# grep -v '^#' /etc/my.cnf
    [mysqld]
    datadir=/var/lib/mysql
    socket=/var/lib/mysql/mysql.sock
    log-error=/var/log/mysqld.log
    pid-file=/var/run/mysqld/mysqld.pid
    server-id=2
    gtid-mode=on
    enforce-gtid-consistency=on
    log-slave-updates=on
    [root@node1 8.0.17]# systemctl restart mysqld

    [root@node1 8.0.17]# mysql -uroot -pkavl7kAkkle!
    mysql> change master to master_host='192.168.199.6',master_user='repl',master_password='kavl7kAkkle!';     指定主库IP,使用的用户,密码
    mysql> start slave;
    Query OK, 0 rows affected, 1 warning (0.00 sec)
    查看slave状态:
    mysql> show slave status G;
    *************************** 1. row ***************************
                   Slave_IO_State: Waiting for master to send event
                      Master_Host: 192.168.199.6
                      Master_User: repl
                      Master_Port: 3306
                    Connect_Retry: 60
                  Master_Log_File: binlog.000003
              Read_Master_Log_Pos: 878
                   Relay_Log_File: node1-relay-bin.000003
                    Relay_Log_Pos: 1086
            Relay_Master_Log_File: binlog.000003
                 Slave_IO_Running: Yes
                Slave_SQL_Running: Yes

    测试gtid主从复制

    在master上建立数据库slave上自动创建了。

    在master上查看,可以看到slave的状态(主库的sever_id、从库的server_id、slave_UUID)

    mysql> show slave hosts;
    +-----------+------+------+-----------+--------------------------------------+
    | Server_id | Host | Port | Master_id | Slave_UUID                           |
    +-----------+------+------+-----------+--------------------------------------+
    |         2 |      | 3306 |         1 | 167eed9d-b10c-11e9-af77-000c2973f66b |
    +-----------+------+------+-----------+--------------------------------------+

    至此gtid主从复制搭建成功!!!!有什么问题欢迎留言指教。

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  • 原文地址:https://www.cnblogs.com/winter1519/p/11260401.html
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