MySQL 5.7 延迟复制环境搭建和测试

Dear 丶 2021-09-20 02:18 209阅读 0赞

安装主从 MySQL 5.7

# 主 MySQL5.7
    cd /usr/local
    tar -xvf mysql-5.7.23-linux-glibc2.12-x86_64.tar.gz
    mv mysql-5.7.23-linux-glibc2.12-x86_64/ mysql
    cd mysql
    mkdir data conf
    vim conf/my.cnf
    -------------------------------------------
    [mysqld]
    basedir=/usr/local/mysql
    datadir=/usr/local/mysql/data
    socket=/usr/local/mysql/data/mysql.sock
    symbolic-links=0
    log-error=/tmp/mysqld.log
    pid-file=/usr/local/mysql/data/mysqld.pid
    server-id=10
    port=3366
    gtid_mode=on
    enforce_gtid_consistency=on
    log_bin
    binlog_format=row
    -------------------------------------------
    export PATH=$PATH:/usr/local/mysql/bin
    mysqld --defaults-file=/usr/local/mysql/conf/my.cnf --initialize --user=mysql
    mysqld_safe --defaults-file=/usr/local/mysql/conf/my.cnf --user=mysql &
    # 从 MySQL5.7
    cd /usr/local
    tar -xvf mysql-5.7.23-linux-glibc2.12-x86_64.tar.gz
    mv mysql-5.7.23-linux-glibc2.12-x86_64/ mysql
    cd mysql
    mkdir data conf
    vim conf/my.cnf
    -------------------------------------------
    [mysqld]
    basedir=/usr/local/mysql
    datadir=/usr/local/mysql/data
    socket=/usr/local/mysql/data/mysql.sock
    symbolic-links=0
    log-error=/tmp/mysqld.log
    pid-file=/usr/local/mysql/data/mysqld.pid
    server-id=20
    port=3366
    gtid_mode=on
    enforce_gtid_consistency=on
    log_bin
    binlog_format=row
    -------------------------------------------
    export PATH=$PATH:/usr/local/mysql/bin
    mysqld --defaults-file=/usr/local/mysql/conf/my.cnf --initialize --user=mysql
    mysqld_safe --defaults-file=/usr/local/mysql/conf/my.cnf --user=mysql &

主从节点更改 root@'localhost' 密码和创建复制账号

set sql_log_bin=0;
    alter user root@'localhost' identified by 'MySQL5.7';
    create user root@'%' identified by 'MySQL5.7';
    grant all on *.* to root@'%';
    flush privileges; 
    set sql_log_bin=1;

将主节点的数据传到从节点

mysqldump -S /usr/local/mysql/data/mysql.sock -u root -pMySQL5.7 \
    --all-databases --triggers --routines --events \
    --single-transaction --quick | mysql -h 192.168.1.226 -P 3366 -u root -pMySQL5.7

将从服务器指定到主服务器

change master to master_host='192.168.1.225',master_port=3366,master_user='root',master_password='MySQL5.7',master_auto_position=1,MASTER_DELAY=120;
    start slave;
    show slave status\G

在主服务器使用以下脚本插入数据

shell> cat mysql.sh 
    #!/bin/bash  
    while true
    do
        mysql -S /usr/local/mysql/data/mysql.sock -u root -pMySQL5.7 -e "insert into testdb.dt values(now())";
        sleep 1
    done

结果：从服务器的数据延时120秒生成，主服务器停机后2分钟，从服务器持续更新2分钟

转载于:https://blog.51cto.com/linux10000/2317781