1、编译安装MySQL8.0

版本信息

#cat/etc/redhat-release
CentOSLinuxrelease7.5.1804(Core)

安装依赖包

yum-yinstallwgetcmakegccgcc-c++ncursesncurses-devellibaio-developensslopenssl-devel
rpm-qa|greplibaio
yuminstalllibaiolibaio-devel

下载源码包

wgethttps://dev.mysql.com/get/Downloads/MySQL-8.0/mysql-boost-8.0.12.tar.gz

创建用户和建立数据目录并赋予用户目录权限

groupaddmysql
useradd-r-gmysql-s/sbin/nologinmysql
mkdir-p/usr/local/mysql
mkdir-p/data/mysql
chown-Rmysql.mysql/usr/local/mysql
chown-Rmysql.mysql/data/mysql
chmod-R755/usr/local/mysql/
chmod-R755/data/mysql/

解压并开始安装

tar-zxfmysql-boost-8.0.12.tar.gz

配置

cdmysql-8.0.12
cmake.-DCMAKE_INSTALL_PREFIX=/usr/local/mysql\
-DMYSQL_DATADIR=/data/mysql\
-DSYSCONFDIR=/etc\
-DMYSQL_TCP_PORT=3306\
-DWITH_BOOST=~/mysql-8.0.12/boost\
-DDEFAULT_CHARSET=utf8\
-DDEFAULT_COLLATION=utf8_general_ci\
-DENABLED_LOCAL_INFILE=ON\
-DWITH_INNODB_MEMCACHED=ON\
-DWITH_INNOBASE_STORAGE_ENGINE=1\
-DWITH_FEDERATED_STORAGE_ENGINE=1\
-DWITH_BLACKHOLE_STORAGE_ENGINE=1\
-DWITH_ARCHIVE_STORAGE_ENGINE=1\
-DWITHOUT_EXAMPLE_STORAGE_ENGINE=1\
-DWITH_PERFSCHEMA_STORAGE_ENGINE=1

配置参数说明：

CMAKE_INSTALL_PREFIX ：指定基础安装目录

MYSQL_DATADIR ：指定数据目录

SYSCONFDIR=/etc ：指定配置文件扫描目录

MYSQL_TCP_PORT ：指定端口号

WITH_BOOST ：指定boost所在目录

DEFAULT_CHARSET ：指定默认字符集

DEFAULT_COLLATION ：指定默认排序规则

ENABLED_LOCAL_INFILE=ON ：是否为load data infile启用local

WITH_INNODB_MEMCACHED=ON :是否生成memcached共享库

编译&安装

make&&makeinstall

初始化数据库

mysqld--initialize-insecure--user=mysql--basedir=/usr/local/mysql--datadir=/data/mysql

建立配置文件

cat>/etc/my.cnf<<EOF
[client]
port=3306
socket=/tmp/mysql.sock
default-character-set=utf8
#user=root
#password=123
[mysqld]
server-id=1
#skip-grant-tables
port=3306
user=mysql
max_connections=200
socket=/tmp/mysql.sock
basedir=/usr/local/mysql
datadir=/data/mysql
pid-file=/data/mysql/mysql.pid
init-connect='SETNAMESutf8'
character-set-server=utf8
default-storage-engine=INNODB
log_error=/data/mysql/mysql-error.log
slow_query_log_file=/data/mysql/mysql-slow.log
[mysqldump]
quick
max_allowed_packet=16M
EOF

配置环境变量

echo"PATH=/usr/local/mysql/bin:$PATH">>/etc/profile
source/etc/profile

配置启动脚本

cp../mysql-8.0.12/support-files/mysql.server/etc/init.d/mysqld
vim/etc/init.d/mysqld
chmod+x/etc/init.d/mysqld
/etc/init.d/mysqldstart

centos7系统自启动脚本

cat/usr/lib/systemd/system/mysqld.service
[Unit]
Description=mysqlserverdaemon
Documentation=man:mysql(8)
Documentation=http://dev.mysql.com/doc/refman/en/using-systemd.html
After=network.target
After=syslog.target
[Install]
WantedBy=multi-user.target
[Service]
User=mysql
Group=mysql
Type=notify
TimeoutSec=0
PermissionsStartOnly=true
ExecStart=/usr/local/mysql/bin/mysqld$MYSQLD_OPTS
LimitNOFILE=10000
Restart=always
RestartPreventExitStatus=1
Environment=MYSQLD_PARENT_PID=1
PrivateTmp=false

启动MySQL

systemctlstartmysqld.service

修改root密码：使用WITH指定认证方式

mysql-uroot
ALTERUSER'root'@'localhost'IDENTIFIEDWITHmysql_native_passwordBY'你的密码';
ALTERUSER'root'@'localhost'IDENTIFIEDWITHcaching_sha2_passwordBY'你的密码';

查看密码字段和加密方式

selecthost,user,authentication_string,pluginfromuser;

2、yum存储库安装MySQL

wgethttps://dev.mysql.com/get/mysql80-community-release-el7-1.noarch.rpm
yumlocalinstallmysql80-community-release-el7-1.noarch.rpm
yumrepolistenabled|grep"mysql.*-community.*"
yumrepolistall|grepmysql
yuminstallmysql-community-server
systemctlenablemysqld
systemctlstartmysqld
netstat-lntup|grep3306

查看随机生成的密码

grep'temporarypassword'/var/log/mysqld.log
mysql-uroot-p

修改密码,密码必须要由大小写字母、数字和特性字符组成

alteruser'root'@'localhost'identifiedby'PJY@123.com';
selectversion();