银河麒麟V10（Lance） 在线安装 MySQL 5.7

1、配置epkl镜像源（镜像源地址：https://update.cs2c.com.cn/NS/V10/V10SP3/）

# vim /etc/yum.repos.d/kylin_epkl_aarch64.repo 
###Kylin Linux Advanced Server 10 - epkl repo###

[ks10-adv-epkl]
name = Kylin Linux Advanced Server 10 - EPKL
baseurl = https://update.cs2c.com.cn/NS/V10/V10SP3/EPKL/$basearch/
enabled = 1
gpgcheck = 0

2、在线安装MySQL（默认安装MySQL 8.0）

# 查看可用版本
dnf --enablerepo=ks10-adv-epkl list mysql-server --showduplicates | sort -r

# 安装
dnf --enablerepo=ks10-adv-epkl install mysql-community-server-5.7.29-1.p01.ky10.ky10 -y

3、修改配置文件

# vim /etc/my.cnf
[client]
port = 3306
socket = /var/lib/mysql/mysql.sock
 
[mysql]
prompt="MySQL [\d]> "
no-auto-rehash
 
[mysqld]
port = 3306
socket = /var/lib/mysql/mysql.sock
 
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
 
skip-name-resolve
#skip-networking
back_log = 300
 
max_connections = 5348
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
 
query_cache_type = 1
query_cache_size = 64M
query_cache_limit = 2M
 
ft_min_word_len = 4
 
log_bin = mysql-bin
binlog_format = row
expire_logs_days = 7
 
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 = NO_AUTO_VALUE_ON_ZERO
 
[mysqldump]
quick
max_allowed_packet = 500M
 
[myisamchk]
key_buffer_size = 256M
sort_buffer_size = 8M
read_buffer = 4M
write_buffer = 4M

4、启动MySQL

# 配置软链接
ln -sv /var/lib/mysql/mysql.pid /run/mysqld/mysqld.pid
chown -R mysql. /run/mysqld/

# 启动MySQL
/etc/init.d/mysqld start

5、登录并修改root密码

# 查看日志中的临时密码
grep -i password /var/lib/mysql/mysql-error.log

# 修改root密码
> ALTER USER 'root'@'localhost' IDENTIFIED BY 'Admin-123';
> flush privileges;

# 修改密码配置级别
> set validate_password_policy=low;
> show global variables like '%password%';

其他配置参考：

https://www.cnblogs.com/a120608yby/p/9888437.html