本文共 4676 字，大约阅读时间需要 15 分钟。
1、解压MySQL安装包
[root@szl-46 ~]# tar xvJf mysql-8.0.15-linux-glibc2.12-x86_64.tar.xzmysql-8.0.15-linux-glibc2.12-x86_64/bin/myisam_ftdumpmysql-8.0.15-linux-glibc2.12-x86_64/bin/myisamchkmysql-8.0.15-linux-glibc2.12-x86_64/bin/myisamlogmysql-8.0.15-linux-glibc2.12-x86_64/bin/myisampack.........
2、重命名文件并移动到/usr/local/mysql/目录下
[root@szl-46 ~]# mv mysql-8.0.15-linux-glibc2.12-x86_64 /usr/local/mysql
3、为MySQL添加用户组和用户
3.1添加用户组
[root@szl-46 ~]# groupadd mysql
3.2添加用户
[root@szl-46 ~]# useradd -r -g mysql mysql
4、检查是否安装了libaio
[root@szl-46 ~]# rpm -qa | grep libaiolibaio-0.3.109-13.el7.x86_64libaio-devel-0.3.109-13.el7.x86_64
若没有则执行如下命令进行安装：
[root@szl-46 ~]# yum -y install libaio
5、在 /etc 目录下添加 my.cnf 文件
[root@szl-46 ~]# vi /etc/my.cnf
输入如下配置，保存退出。
[mysql]default-character-set=utf8mb4[mysqld]port = 3306server_id = 12131401basedir = /usr/local/mysqldatadir = /usr/local/mysql/datalog_bin = /usr/local/mysql/log/mysql-binrelay_log = /usr/local/mysql/log/mysql-relayinnodb_log_group_home_dir = /usr/local/mysql/logtmpdir = /tmplog-error=/usr/local/mysql/log/error.logreport_host = 10.186.61.40# BINLOGbinlog_error_action = ABORT_SERVERbinlog_format = rowbinlog_checksum = NONEbinlog_rows_query_log_events = 1log_slave_updates = 1master_info_repository = TABLEmax_binlog_size = 250Mrelay_log_info_repository = TABLErelay_log_recovery = 1sync_binlog = 1# GTID #gtid_mode = ONenforce_gtid_consistency = 1# ENGINEdefault_storage_engine = InnoDBinnodb_buffer_pool_size = 128Minnodb_data_file_path = ibdata1:1G:autoextendinnodb_file_per_table = 1innodb_flush_log_at_trx_commit=1innodb_flush_method = O_DIRECTinnodb_io_capacity = 200innodb_log_buffer_size = 64Minnodb_log_file_size = 256Minnodb_log_files_in_group = 2innodb_max_dirty_pages_pct = 60innodb_print_all_deadlocks=1innodb_stats_on_metadata = 0innodb_strict_mode = 1# CACHEtmp_table_size = 32Mtable_open_cache = 1024max_connections = 1000thread_cache_size = 1024open_files_limit = 65535# SLOW LOGslow_query_log = 1slow_query_log_file = /usr/local/mysql/log/mysql-slow.loglog_slow_admin_statements = 1log_slow_slave_statements = 1long_query_time = 1
6、创建data目录和log目录
[root@szl-46 ~]# cd /usr/local/mysql[root@szl-46 mysql]# mkdir data[root@szl-46 mysql]# mkdir log[root@szl-46 mysql]# lsbin docs lib LICENSE.router man README.router support-filesdata include LICENSE log README share
7、修改当前目录 /usr/local/mysql 用户为mysql
[root@szl-46 mysql]# chown -R mysql:mysql ./[root@szl-46 mysql]# lltotal 448drwxr-xr-x 2 mysql mysql 4096 Jan 7 16:15 bindrwxr-xr-x 2 mysql mysql 6 Jan 7 16:22 datadrwxr-xr-x 2 mysql mysql 86 Jan 7 16:15 docsdrwxr-xr-x 3 mysql mysql 266 Jan 7 16:15 includedrwxr-xr-x 6 mysql mysql 4096 Jan 7 16:15 lib-rw-r--r-- 1 mysql mysql 335812 Jan 26 2019 LICENSE-rw-r--r-- 1 mysql mysql 101810 Jan 26 2019 LICENSE.routerdrwxr-xr-x 2 mysql mysql 6 Jan 7 16:22 logdrwxr-xr-x 4 mysql mysql 30 Jan 7 16:15 man-rw-r--r-- 1 mysql mysql 687 Jan 26 2019 README-rw-r--r-- 1 mysql mysql 700 Jan 26 2019 README.routerdrwxr-xr-x 28 mysql mysql 4096 Jan 7 16:15 sharedrwxr-xr-x 2 mysql mysql 90 Jan 7 16:15 support-files
8、初始化MySQL
[root@szl-46 mysql]# ./bin/mysqld --initialize --user=mysql --basedir=/usr/local/mysql/ --datadir=/usr/local/mysql/data/
1、设置开机启动
复制启动脚本到资源目录
[root@szl-46 mysql]# cp ./support-files/mysql.server /etc/rc.d/init.d/mysqld
增加MySQL服务控制脚本权限
[root@szl-46 mysql]# chmod +x /etc/rc.d/init.d/mysqld
将 mysqld 服务加入到系统服务
[root@szl-46 mysql]# chkconfig --add mysqld
检查mysqld服务是否已经生效
[root@szl-46 mysql]# chkconfig --list mysqldNote: This output shows SysV services only and does not include nativesystemd services. SysV configuration data might be overridden by nativesystemd configuration.If you want to list systemd services use 'systemctl list-unit-files'.To see services enabled on particular target use'systemctl list-dependencies [target]'.mysqld 0:off 1:off 2:on 3:on 4:on 5:on 6:off
命令输出类似上面的结果。
2、启动Mysql
[root@szl-46 mysql]# service mysqld startStarting MySQL.. SUCCESS!
3、环境变量配置
将mysql的bin目录加入PATH环境变量，编辑 /etc/profile文件：
[root@szl-46 mysql]# vi /etc/profile
在最下边写入如下内容：
export MYSQL_HOME=/usr/local/mysqlexport PATH=$PATH:$MYSQL_HOME/bin
执行命令使其生效
[root@szl-46 mysql]# source /etc/profile
1、登录Mysql
# mysql -uroot -p（登录密码为初始化的时候显示的临时密码，可以在MySQL错误日志里查看到）
2、修改初始化密码，不然不能进行其他操作,修改语句如下：
mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY '123';
3、开启防火墙端口 3306 使其可远程访问
# firewall-cmd --zone=public --add-port=3306/tcp --permanent# firewall-cmd --reload
4、开启数据库远程连接
mysql> CREATE USER 'root'@'%' IDENTIFIED BY '123';mysql> GRANT ALL ON *.* TO 'root'@'%';mysql> ALTER USER 'root'@'%' IDENTIFIED WITH mysql_native_password BY '123';mysql> FLUSH PRIVILEGES;
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