Linux搭建单机MySQL8.0.26版本的操作方法

# 下载libtinfo5、libnuma1依赖
[root@lb ~]# apt update -y && apt install -y libtinfo5 libnuma1

wget https://downloads.mysql.com/archives/get/p/23/file/mysql-8.0.26-linux-glibc2.12-x86_64.tar.xz

# 服务解压至家目录
[root@lb ~]# tar -xvf mysql-8.0.26-linux-glibc2.12-x86_64.tar.xz
# 创建软链接
[root@lb ~]# ln -s mysql-8.0.26-linux-glibc2.12-x86_64 mysql
# 查看
[root@lb ~]# ll | grep mysql
lrwxrwxrwx  1 root root        35 may  1 15:43 mysql -> mysql-8.0.26-linux-glibc2.12-x86_64/
drwxr-xr-x  9 root root      4096 may  1 15:43 mysql-8.0.26-linux-glibc2.12-x86_64/
-rw-r--r--  1 root root 914806904 jul  2  2021 mysql-8.0.26-linux-glibc2.12-x86_64.tar.xz

# /root/mysql/bin根据你安装的实际地址来进行替换
[root@lb ~]# echo 'export path=/root/mysql/bin:$path' >> /etc/profile
[root@lb ~]# source /etc/profile

[root@lb ~]# mysql -v
mysql  ver 8.0.26 for linux on x86_64 (mysql community server - gpl)

[root@lb ~]# useradd -s /sbin/nologin -m mysql

[root@lb ~]# mkdir -p /data/mysql/data
[root@lb ~]# chown -r mysql.mysql /data/mysql/data

# 初始化数据库，没有报错即代表成功
[root@lb ~]# mysqld --initialize-insecure  --user=mysql  --datadir=/data/mysql/data  --basedir=/root/mysql
2025-05-01t07:59:04.638615z 0 [system] [my-013169] [server] /root/mysql-8.0.26-linux-glibc2.12-x86_64/bin/mysqld (mysqld 8.0.26) initializing of server in progress as process 132486
2025-05-01t07:59:04.656989z 1 [system] [my-013576] [innodb] innodb initialization has started.
2025-05-01t07:59:05.254538z 1 [system] [my-013577] [innodb] innodb initialization has ended.
2025-05-01t07:59:05.950015z 0 [warning] [my-013746] [server] a deprecated tls version tlsv1 is enabled for channel mysql_main
2025-05-01t07:59:05.950635z 0 [warning] [my-013746] [server] a deprecated tls version tlsv1.1 is enabled for channel mysql_main
2025-05-01t07:59:06.009584z 6 [warning] [my-010453] [server] root@localhost is created with an empty password ! please consider switching off the --initialize-insecure option.

[root@lb ~]# ll /data/mysql/data/
total 177608
-rw-r----- 1 mysql mysql   196608 may  1 15:59 '#ib_16384_0.dblwr'
-rw-r----- 1 mysql mysql  8585216 may  1 15:59 '#ib_16384_1.dblwr'
drwxr-x--- 2 mysql mysql     4096 may  1 15:59 '#innodb_temp'/
drwxr-xr-x 6 mysql mysql     4096 may  1 15:59  ./
drwxr-xr-x 3 root  root      4096 may  1 15:56  ../
-rw-r----- 1 mysql mysql       56 may  1 15:59  auto.cnf
-rw------- 1 mysql mysql     1676 may  1 15:59  ca-key.pem
-rw-r--r-- 1 mysql mysql     1112 may  1 15:59  ca.pem
-rw-r--r-- 1 mysql mysql     1112 may  1 15:59  client-cert.pem
-rw------- 1 mysql mysql     1680 may  1 15:59  client-key.pem
-rw-r----- 1 mysql mysql     5995 may  1 15:59  ib_buffer_pool
-rw-r----- 1 mysql mysql 50331648 may  1 15:59  ib_logfile0
-rw-r----- 1 mysql mysql 50331648 may  1 15:59  ib_logfile1
-rw-r----- 1 mysql mysql 12582912 may  1 15:59  ibdata1
drwxr-x--- 2 mysql mysql     4096 may  1 15:59  mysql/
-rw-r----- 1 mysql mysql 26214400 may  1 15:59  mysql.ibd
drwxr-x--- 2 mysql mysql     4096 may  1 15:59  performance_schema/
-rw------- 1 mysql mysql     1676 may  1 15:59  private_key.pem
-rw-r--r-- 1 mysql mysql      452 may  1 15:59  public_key.pem
-rw-r--r-- 1 mysql mysql     1112 may  1 15:59  server-cert.pem
-rw------- 1 mysql mysql     1680 may  1 15:59  server-key.pem
drwxr-x--- 2 mysql mysql     4096 may  1 15:59  sys/
-rw-r----- 1 mysql mysql 16777216 may  1 15:59  undo_001
-rw-r----- 1 mysql mysql 16777216 may  1 15:59  undo_002

[root@lb ~]# cat /etc/my.cnf
[mysqld]
# 数据库文件的存储路径
datadir=/data/mysql/data
# 服务器监听的端口号
port=3306
# 字符集设置
character-set-server=utf8mb4
# 排序规则
collation-server=utf8mb4_general_ci
# 允许的最大连接数
max_connections=1000
# mysql服务器的缓存大小，用于缓存数据和索引
innodb_buffer_pool_size=1g
# 日志文件的路径
log_error=/var/log/mysql/error.log
# 慢查询日志文件的路径
slow_query_log_file=/var/log/mysql/slow-query.log
# 开启慢查询日志，1表示开启，0表示关闭
slow_query_log=1
# 设定慢查询的时间阈值，单位为秒，超过此时间的查询将被记录到慢查询日志中
long_query_time=3
# 设置用户
user=mysql
# 设置socket连信息
socket=/tmp/mysql.sock
[client]
# 客户端默认字符集
default-character-set=utf8mb4
[mysql]
# mysql命令行工具的默认字符集
default-character-set=utf8mb4
 

[root@lb ~]# mkdir -p /var/log/mysql/
[root@lb ~]# chown -r mysql.mysql /var/log/mysql/

[root@lb ~]# cp /root/mysql/support-files/mysql.server /etc/init.d/mysqld
[root@lb ~]# chmod +x /etc/init.d/mysqld

# 没报错即代表启动成功
[root@lb ~]# /etc/init.d/mysqld start
starting mysqld (via systemctl): mysqld.service.
# 检查端口号
[root@lb ~]# ss -lntup | grep 3306
tcp   listen 0      70                 *:33060            *:*    users:(("mysqld",pid=144896,fd=21))
tcp   listen 0      1000               *:3306             *:*    users:(("mysqld",pid=144896,fd=24))

[root@lb ~]# mysqladmin -u root password "huangsir"
mysqladmin: [warning] using a password on the command line interface can be insecure.
warning: since password will be sent to server in plain text, use ssl connection to ensure password safety.

[root@lb ~]# mysql -uroot -phuangsir
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 10
server version: 8.0.26 mysql community server - gpl
copyright (c) 2000, 2021, oracle and/or its affiliates.
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>

# 创建用户，10.0.0.0/24代表网段，只有在这个网段之内的ip才能连接数据库，密码设置为huangsir
mysql> create user 'root'@'10.0.0.0/24' identified by 'huangsir';
query ok, 0 rows affected (0.01 sec)
# 授权，*.*代表所有的库和表
mysql> grant all privileges on *.* to 'root'@'10.0.0.0/24' with grant option;
query ok, 0 rows affected (0.00 sec)
# 刷新权限
mysql> flush privileges;
query ok, 0 rows affected (0.00 sec)