共计 4363 个字符,预计需要花费 11 分钟才能阅读完成。
CentOS Linux 7.5 编译安装 MySQL 8.0
1、编译安装 MySQL8.0
# 版本信息
#cat /etc/RedHat-release
CentOS Linux release 7.5.1804 (Core)
# 安装依赖包
yum -y install wget cmake gcc gcc-c++ ncurses ncurses-devel libaio-devel openssl openssl-devel
rpm -qa |grep libaio
yum install libaio libaio-devel
# 下载源码包
wget https://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
groupadd mysql
useradd -r -g mysql -s /sbin/nologin mysql
mkdir -p /usr/local/mysql
mkdir -p /data/mysql
chown -R mysql.mysql /usr/local/mysql
chown -R mysql.mysql /data/mysql
chmod -R 755 /usr/local/mysql/
chmod -R 755 /data/mysql/
# 解压并开始安装
tar -zxf mysql-boost-8.0.12.tar.gz
# 配置
cd mysql-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 && make install
# 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=’SET NAMES utf8′
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/mysqld start
#centos7 系统自启动脚本
cat /usr/lib/systemd/system/mysqld.service
[Unit]
Description=mysql server daemon
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
systemctl start mysqld.service
# 修改 root 密码:使用 WITH 指定认证方式
mysql -uroot
ALTER USER ‘root’@’localhost’ IDENTIFIED WITH mysql_native_password BY ‘ 你的密码 ’;
ALTER USER ‘root’@’localhost’ IDENTIFIED WITH caching_sha2_password BY ‘ 你的密码 ’;
# 查看密码字段和加密方式
select host, user, authentication_string, plugin from user;
2、yum 存储库安装 MySQL
wget https://dev.mysql.com/get/mysql80-community-release-el7-1.noarch.rpm
yum localinstall mysql80-community-release-el7-1.noarch.rpm
yum repolist enabled|grep “mysql.*-community.*”
yum repolist all|grep mysql
yum install mysql-community-server
systemctl enable mysqld
systemctl start mysqld
netstat -lntup|grep 3306
# 查看随机生成的密码
grep ‘temporary password’ /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
alter user ‘root’@’localhost’ identified by ‘PJY@123.com’;
select version();
MySQL 8.0 修改密码问题
MySQL5.7 和之前的用户修改密码方式:
mysql -uroot -e “Set password=password(‘123’);”
mysql -uroot -p123.com -e “use mysql;update user set authentication_string=password(‘456′) where user=’root’;”
update mysql.user set authentication_string=password(“123”) where user=’root’;
以上三种方法在 MySQL8.0 以后版本中将不能使用,如果使用了将会导致在正确修改密码是报如下错误:
mysql> ALTER USER ‘root’@’localhost’ IDENTIFIED WITH mysql_native_password BY ‘123’;
ERROR 1396 (HY000): Operation ALTER USER failed for ‘root’@’localhost’
如遇上以上问题请使用 update 语句先清空 authentication_string 字段,然后再修改密码即可
update user set authentication_string=” where user=’root’;
ALTER USER ‘root’@’localhost’ IDENTIFIED WITH mysql_native_password BY ‘ 你的密码 ’;
所以特别提醒童鞋们:
MySQL8.0 后请使用 alter 修改用户密码,因为在 MySQL8.0 以后的加密方式为 caching_sha2_password,如果使用 update 修改密码会给 user 表中 root 用户的 authentication_string 字段下设置 newpassowrd 值,当再使用 alter user ‘root’@’localhost’ identified by ‘newpassword’ 修改密码时会一直报错,必须清空后再修改,因为 authentication_string 字段下只能是 MySQL 加密后的 43 位字符串密码,其他的会报格式错误,所以在 MySQL8.0 以后能修改密码的方法只能是:ALTER USER ‘root’@’localhost’ IDENTIFIED WITH mysql_native_password BY ‘ 你的密码 ’;
: