作者:IT邦德
中国DBA联盟(ACDU)成员,目前从事DBA及程序编程
(Web\java\Python)工作,主要服务于生产制造
现拥有 Oracle 11g OCP/OCM、
Mysql、Oceanbase(OBCA)认证
分布式TBase\TDSQL数据库、国产达梦数据库以及红帽子认证
从业8年DBA工作,在数据库领域有丰富的经验
B站主播Oracle、Mysql、PG实战课程,请搜索:jeames007
擅长Oracle数据库运维开发,备份恢复,安装迁移,性能优化、故障应急处理等。
建议操作系统内存给到8G
[root@rhel76 ~]# cat /etc/redhat-release
Red Hat Enterprise Linux Server release 7.6 (Maipo)
共享内存大小调整
[root@rhel76 ~]# free -m
[root@rhel76 ~]# df -h /dev/shm/
Filesystem Size Used Avail Use% Mounted on
tmpfs 3.9G 0 3.9G 0% /dev/shm
调整方法:修改/etc/fstab
[root@rhel76 ~]# vi /etc/fstab
tmpfs /dev/shm tmpfs defaults,size=6144M 0 0
[root@rhel76 ~]# cat /etc/fstab | grep shm
#重新挂载
[root@rhel76 ~]# mount -o remount /dev/shm
[root@rhel76 ~]# df -Th
Filesystem Type Size Used Avail Use% Mounted on
/dev/mapper/rhel-root xfs 30G 4.1G 26G 14% /
devtmpfs devtmpfs 2.0G 0 2.0G 0% /dev
tmpfs tmpfs 2.0G 0 2.0G 0% /dev/shm
tmpfs tmpfs 2.0G 13M 2.0G 1% /run
tmpfs tmpfs 2.0G 0 2.0G 0% /sys/fs/cgroup
/dev/mapper/rhel-u01 xfs 28G 33M 28G 1% /u01
/dev/sda1 xfs 950M 164M 786M 18% /boot
tmpfs tmpfs 394M 4.0K 394M 1% /run/user/42
tmpfs tmpfs 394M 56K 394M 1% /run/user/0
/dev/sr0 iso9660 4.2G 4.2G 0 100% /run/media/root/RHEL-7.6 Server.x86_64
[root@rhel76 ~]# systemctl status firewalld
● firewalld.service - firewalld - dynamic firewall daemon
Loaded: loaded (/usr/lib/systemd/system/firewalld.service; enabled; vendor preset: enabled)
Active: active (running) since Thu 2021-11-25 22:32:51 UTC; 7h left
Docs: man:firewalld(1)
Main PID: 9694 (firewalld)
Tasks: 2
CGroup: /system.slice/firewalld.service
└─9694 /usr/bin/python -Es /usr/sbin/firewalld --nofork --nopid
Nov 25 22:32:50 rhel76 systemd[1]: Starting firewalld - dynamic firewall daemon...
Nov 25 22:32:51 rhel76 systemd[1]: Started firewalld - dynamic firewall daemon.
[root@rhel76 ~]# systemctl stop firewalld
[root@rhel76 ~]# systemctl disable firewalld
Removed symlink /etc/systemd/system/multi-user.target.wants/firewalld.service.
Removed symlink /etc/systemd/system/dbus-org.fedoraproject.FirewallD1.service.
[root@rhel76 ~]# getenforce
Enforcing
[root@rhel76 ~]# cp /etc/selinux/config /etc/selinux/config_`date +"%Y%m%d_%H%M%S"`
[root@rhel76 ~]# sed -i 's/SELINUX\=enforcing/SELINUX\=disabled/g' /etc/selinux/config
以上修改完后重启
[root@rhel76 ~]# reboot
[root@rhel76 ~]# getenforce
Disabled
[root@rhel76 ~]# sestatus
SELinux status: disabled
[root@rhel76 ~]# hostnamectl set-hostname jeames007
[root@rhel76 ~]# hostname
jeames007
[root@rhel76 ~]# cat /etc/hosts
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.6.81 jeames007
只有rpm安装方式是需要卸载旧版本的mysql,二进制安装和编译安装不需要,但是要注意端口冲突
rpm若不卸载旧版本,在安装时,它会提示你mysql已安装,此时是无法再次安装的,只有通过yum更新版本
为了保证后续操作不会产生其他冲突,我们卸载原有的mysql
注:在卸载旧的MySQL之前,注意备份数据
#查看是否已安装mysql数据库
[root@jeames007 ~]# rpm -qa|grep mysql
#卸载mysql
[root@jeames007 ~]# rpm -qa|grep mysql|xargs rpm -e --nodeps
#卸载mariadb
[root@jeames007 ~]# rpm -qa|grep mariadb
mariadb-libs-5.5.60-1.el7_5.x86_64
[root@jeames007 ~]# rpm -qa|grep mariadb-libs|xargs rpm -e --nodeps
https://dev.mysql.com/downloads/mysql/
mysql-boost-8.0.27.tar.gz
MD5: 80310c5a1b24145fa072927ab99a4c0d
[root@jeames007 ~]# mkdir -p /mnt/dvd/
[root@jeames007 ~]# df -Th
Filesystem Type Size Used Avail Use% Mounted on
/dev/mapper/rhel-root xfs 30G 4.1G 26G 14% /
devtmpfs devtmpfs 2.0G 0 2.0G 0% /dev
tmpfs tmpfs 2.0G 0 2.0G 0% /dev/shm
tmpfs tmpfs 2.0G 13M 2.0G 1% /run
tmpfs tmpfs 2.0G 0 2.0G 0% /sys/fs/cgroup
/dev/sda1 xfs 950M 164M 786M 18% /boot
/dev/mapper/rhel-u01 xfs 28G 33M 28G 1% /u01
tmpfs tmpfs 394M 8.0K 394M 1% /run/user/42
tmpfs tmpfs 394M 20K 394M 1% /run/user/0
/dev/sr0 iso9660 4.2G 4.2G 0 100% /run/media/root/RHEL-7.6 Server.x86_64
[root@jeames007 ~]# mount /dev/sr0 /mnt/dvd
mount: /dev/sr0 is write-protected, mounting read-only
[root@jeames007 ~]# cd /etc/yum.repos.d/
cat >> /etc/yum.repos.d/redhat.repo << "EOF"
[rhel7]
name=jeames repo
baseurl=file:///mnt/dvd/
gpgcheck=0
EOF
[root@jeames007 ~]# yum -y install lrzsz wget perl-Digest-MD5
[root@jeames007 ~]# yum -y install ncurses-devel libaio-devel
[root@jeames007 ~]# yum -y install cmake gcc gcc-c++
[root@jeames007 ~]# yum install –y openssl openssl-devel ncurses ncurses-devel
cmake升级,MySQL8版本需要cmake3来编译,此时需要安装cmake3.5.1及以上的版本
参考博客:cmake如何进行版本升级
GCC是Linux下的C语言编译工具,
mysql8.0版本源码编译完全由C和C++编写,
要求必须安装GCC5.3或以上版本。
GCC编译这个过程很慢,经历了1个小时40分钟,耐心等待
参考博客:Linux gcc升级全过程,过程超详细
下载网站:
https://pkgs.org/download/rpm-build
[root@jeames007 ~]# rpm -ivh devtoolset-10-runtime-10.0-0.el7.x86_64.rpm
Preparing... ################################# [100%]
Updating / installing...
1:devtoolset-10-runtime-10.0-0.el7 ################################# [100%]
[root@jeames007 ~]# rpm -ivh devtoolset-10-binutils-2.35-5.el7.2.x86_64.rpm
warning: devtoolset-10-binutils-2.35-5.el7.2.x86_64.rpm: Header V4 RSA/SHA256 Signature, key ID f2ee9d55: NOKEY
Preparing... ################################# [100%]
Updating / installing...
1:devtoolset-10-binutils-2.35-5.el7################################# [100%]
[root@jeames007 ~]# rpm -ivh devtoolset-10-gcc-10.2.1-11.1.el7.x86_64.rpm
Preparing... ################################# [100%]
Updating / installing...
1:devtoolset-10-gcc-10.2.1-11.1.el7################################# [100%]
[root@jeames007 ~]# rpm -ivh devtoolset-10-libstdc++-devel-10.2.1-11.1.el7.x86_64.rpm
warning: devtoolset-10-libstdc++-devel-10.2.1-11.1.el7.x86_64.rpm: Header V4 RSA/SHA256 Signature, key ID f2ee9d55: NOKEY
Preparing... ################################# [100%]
Updating / installing...
1:devtoolset-10-libstdc++-devel-10.################################# [100%]
[root@jeames007 ~]# rpm -ivh devtoolset-10-gcc-c++-10.2.1-11.1.el7.x86_64.rpm
warning: devtoolset-10-gcc-c++-10.2.1-11.1.el7.x86_64.rpm: Header V4 RSA/SHA256 Signature, key ID f2ee9d55: NOKEY
Preparing... ################################# [100%]
Updating / installing...
1:devtoolset-10-gcc-c++-10.2.1-11.1################################# [100%]
[root@jeames007 ~]# rpm -qa | grep devtoolset
[root@jeames007 ~]# mkdir /soft
[root@jeames007 ~]# mv mysql-boost-8.0.27.tar.gz /soft/
[root@jeames007 ~]# cd /soft
[root@jeames007 soft]# tar -zxf mysql-boost-8.0.27.tar.gz
[root@jeames007 soft]# ll
total 285340
drwxr-xr-x 31 7161 31415 4096 Sep 28 13:22 mysql-8.0.27
-rw-r--r-- 1 root root 292184025 Nov 25 15:08 mysql-boost-8.0.27.tar.gz
[root@jeames007 soft]# cd mysql-8.0.27
cmake -DCMAKE_INSTALL_PREFIX=/usr/local/mysql \
-DMYSQL_DATADIR=/usr/local/mysql/data \
-DSYSCONFDIR=/etc \
-DWITH_INNOBASE_STORAGE_ENGINE=1 \
-DWITH_PARTITION_STORAGE_ENGINE=1 \
-DWITH_FEDERATED_STORAGE_ENGINE=1 \
-DWITH_BLACKHOLE_STORAGE_ENGINE=1 \
-DWITH_MYISAM_STORAGE_ENGINE=1 \
-DENABLED_LOCAL_INFILE=1 \
-DENABLE_DTRACE=0 \
-DDEFAULT_CHARSET=utf8mb4 \
-DDEFAULT_COLLATION=utf8mb4_general_ci \
-DWITH_EMBEDDED_SERVER=1 \
-DDOWNLOAD_BOOST=1 \
-DWITH_BOOST=/soft/mysql-8.0.27/boost/boost_1_73_0 \
-DFORCE_INSOURCE_BUILD=1
[root@jeames007 ~]# make -j4 --此处编译需要1个小时,一定要耐心等待
[root@jeames007 ~]# make install
groupadd mysql
useradd -g mysql mysql
chown -R mysql:mysql /usr/local/mysql
cat > /etc/my.cnf <<"EOF"
[mysqld]
basedir=/usr/local/mysql
datadir=/usr/local/mysql/data
port=3306
server_id=80273306
log-bin
skip-name-resolve
character_set_server=utf8mb4
default-time-zone = '+8:00'
log_timestamps = SYSTEM
EOF
/usr/local/mysql/bin/mysqld --initialize-insecure --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data --user=mysql
echo "export PATH=$PATH:/usr/local/mysql/bin" >> /root/.bashrc
source /root/.bashrc
#启动 MySQL
mysqld_safe &
#登录 mysql,默认密码为空
mysql -uroot -p
#关闭 MySQL
mysqladmin -uroot -p shutdown
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