mysql8.0.30主从配置

标签：bin log 30 mysql8.0 mysql MASTER data 主从 logs

安装包下载地址：

https://downloads.mysql.com/archives/community/

1、 解压介质包：

# tar xf mysql-8.0.30-linux-glibc2.12-x86_64.tar.xz
# mv mysql-8.0.30-linux-glibc2.12-x86_64 mysql
# mkdir mysql/{data,logs}

2、 创建mysql用户，并对目录授权

# groupadd mysql
# useradd -M -s /sbin/nologin -g mysql mysql
# chown -R mysql.mysql mysql

3、编辑主从节点配置文件

以下为我的服务配置，可参考

master my.cnf

[mysqld]
bind-address=0.0.0.0
port=3306
user=mysql
basedir=/data/mysql
datadir=/data/mysql/data
log-error=/data/mysql/data/mysql.err
socket=/tmp/mysql.sock
pid-file=/data/mysql/data/mysql.pid

server-id=1

slow_query_log=ON
slow_query_log_file=/data/mysql/data/slow.log
long_query_time=1

gtid_mode=ON
enforce_gtid_consistency=ON

binlog_format=row
expire_logs_days=7
max_binlog_size=512M
log-bin=/data/mysql/logs/mysql-bin
log_bin_index=/data/mysql/logs/mysql-bin.index
log-slave-updates = ON

character-set-server = utf8
collation_server = utf8_general_ci
default_authentication_plugin=mysql_native_password

slave my.cnf

[mysqld]
bind-address=0.0.0.0
port=3306
user=mysql
basedir=/data/mysql
datadir=/data/mysql/data/
log-error=/data/mysql/data/mysql.err
socket=/tmp/mysql.sock
pid-file=/data/mysql/data/mysql.pid

server-id=151

slow_query_log=ON
slow_query_log_file=/data/mysql/data/slow.log
long_query_time=1

gtid_mode = ON
enforce_gtid_consistency = ON
skip-slave-start = true
expire_logs_days = 7
max_binlog_size  = 512M
read_only = ON

log-bin=/data/mysql/logs/mysql-bin
log_bin_index = /data/mysql/logs/mysql-bin.index
relay-log = /data/mysql/logs/relay-log
relay-log-index = /data/mysql/logs/relay-log-index
relay-log-info-file = /data/mysql/logs/relay-log.info
log-slave-updates=true
master-info-repository = table
relay-log-info-repository = table
symbolic-links=0

character-set-server = utf8
collation_server = utf8_general_ci
default_authentication_plugin=mysql_native_password

保存退出后记得修改权限

# chown mysql.mysql *

4、 初始化数据库

# cd /data/mysql
# ./bin/mysqld --defaults-file=/data/mysql/my.cnf --basedir=/data/mysql --datadir=/data/mysql/data --user=mysql –initialize

PS：mysql.err 日志中有初始化数据库密码

5、数据库启动

# ./bin/mysqld_safe --defaults-file=/data/mysql/my.cnf &

6、登录数据库修改初始密码，创建root@%账号并授权

mysql> alter user 'root'@'localhost' identified by 'Root~123';
mysql> create user 'root'@'%' identified WITH mysql_native_password by 'Root~123';
mysql> grant all privileges on *.* to 'root'@'%' with grant option;

7、 创建数据库同步账号并授权

mysql> create user 'repl'@'%' identified with mysql_native_password by 'repl';
mysql> grant replication slave on *.* to 'repl'@'%';
mysql> flush privileges;

8、配置主从同步，从库安装方法同上

登录主库查询Master状态，并记录 File 和 Position 的值：

mysql> show master;

登录从库操作：

mysql> CHANGE MASTER TO MASTER_HOST='73.134.64.72',MASTER_PORT=3306,MASTER_USER='repl',MASTER_PASSWORD='repl',MASTER_LOG_FILE='mysql-bin.000003',MASTER_LOG_POS=2229;
mysql> show slave status\G;

查询主从状态（参数 Slave_IO_Running 和 Slave_SQL_Running 是否都为yes，则证明配置成功。若为no，则需要查看对应的 Last_IO_Error 或 Last_SQL_Error 的异常值）

 

标签：bin,log,30,mysql8.0,mysql,MASTER,data,主从,logs
From： https://www.cnblogs.com/goujinyang/p/17055577.html