1、配置安装源

# 安装
dnf install http://mirrors.ustc.edu.cn/mysql-repo/mysql80-community-release-el9.rpm -y
 
# 修改配置
sed -i 's@http://repo.mysql.com/@http://mirrors.ustc.edu.cn/mysql-repo/@g' /etc/yum.repos.d/mysql-community*.repo

2、安装MySQL

dnf install -y mysql-community-server

3、配置MySQL

if [ ! "$(cat /usr/bin/mysqld_pre_systemd | grep -v ^\# | grep initialize-insecure )" ]; then
    sed -i "s@--initialize @--initialize-insecure @g" /usr/bin/mysqld_pre_systemd
fi

4、修改配置文件

[client]
port = 3306
socket = /var/lib/mysql/mysql.sock
default-character-set = utf8mb4
 
[mysql]
prompt="MySQL [\d]> "
no-auto-rehash
 
[mysqld]
port = 3306
socket = /var/lib/mysql/mysql.sock
default_authentication_plugin = mysql_native_password
 
datadir = /var/lib/mysql
pid-file = /var/lib/mysql/mysql.pid
user = mysql
bind-address = 0.0.0.0
server-id = 1
 
init-connect = 'SET NAMES utf8mb4'
character-set-server = utf8mb4
collation-server = utf8mb4_0900_ai_ci
 
skip-name-resolve
#skip-networking
back_log = 300
 
max_connections = 5295
max_connect_errors = 6000
open_files_limit = 65535
table_open_cache = 1024
max_allowed_packet = 500M
binlog_cache_size = 1M
max_heap_table_size = 8M
tmp_table_size = 128M
 
read_buffer_size = 2M
read_rnd_buffer_size = 8M
sort_buffer_size = 8M
join_buffer_size = 8M
key_buffer_size = 256M
 
thread_cache_size = 64
 
ft_min_word_len = 4
 
log_bin = mysql-bin
binlog_format = row
binlog_expire_logs_seconds = 604800
 
log_error = /var/lib/mysql/mysql-error.log
slow_query_log = 1
long_query_time = 1
slow_query_log_file = /var/lib/mysql/mysql-slow.log
 
performance_schema = 0
explicit_defaults_for_timestamp
 
lower_case_table_names = 1
 
skip-external-locking
 
default_storage_engine = InnoDB
#default-storage-engine = MyISAM
innodb_file_per_table = 1
innodb_open_files = 500
innodb_buffer_pool_size = 1024M
innodb_write_io_threads = 4
innodb_read_io_threads = 4
innodb_thread_concurrency = 0
innodb_purge_threads = 1
innodb_flush_log_at_trx_commit = 2
innodb_log_buffer_size = 2M
innodb_log_file_size = 32M
innodb_log_files_in_group = 3
innodb_max_dirty_pages_pct = 90
innodb_lock_wait_timeout = 120
 
bulk_insert_buffer_size = 8M
myisam_sort_buffer_size = 64M
myisam_max_sort_file_size = 10G
 
interactive_timeout = 28800
wait_timeout = 28800
 
binlog_rows_query_log_events = 1
log_bin_trust_function_creators = 1
log_timestamps = SYSTEM
 
sql_mode = STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION
#sql_mode = NO_AUTO_VALUE_ON_ZERO
innodb_strict_mode = 0
plugin-load=mysql_clone.so
 
[mysqldump]
quick
max_allowed_packet = 500M
 
[myisamchk]
key_buffer_size = 256M
sort_buffer_size = 8M
read_buffer = 4M
write_buffer = 4M

5、启动MySQL

systemctl enable --now mysqld

6、安全配置

# mysql_secure_installation
mysql_secure_installation: [ERROR] unknown variable 'default-character-set=utf8mb4'.
Securing the MySQL server deployment.
Connecting to MySQL using a blank password.
The 'validate_password' component is installed on the server.
The subsequent steps will run with the existing configuration
of the component.
Please set the password for root here.
New password:     #输入密码
Re-enter new password:      #输入密码
Estimated strength of the password: 100
Do you wish to continue with the password provided?(Press y|Y for Yes, any other key for No) : y
By default, a MySQL installation has an anonymous user,
allowing anyone to log into MySQL without having to have
a user account created for them. This is intended only for
testing, and to make the installation go a bit smoother.
You should remove them before moving into a production
environment.
Remove anonymous users? (Press y|Y for Yes, any other key for No) : y
Success.
Normally, root should only be allowed to connect from
'localhost'. This ensures that someone cannot guess at
the root password from the network.
 
Disallow root login remotely? (Press y|Y for Yes, any other key for No) : y
Success.
By default, MySQL comes with a database named 'test' that
anyone can access. This is also intended only for testing,
and should be removed before moving into a production
environment.
Remove test database and access to it? (Press y|Y for Yes, any other key for No) : y
 - Dropping test database...
Success.
 - Removing privileges on test database...
Success.
Reloading the privilege tables will ensure that all changes
made so far will take effect immediately.
Reload privilege tables now? (Press y|Y for Yes, any other key for No) : y
Success.
All done!