Centos7下快速安装mysql5.7 _安装mysql

【Centos7下快速安装mysql5.7】盛年不重来，一日难再晨，及时当勉励，岁月不待人。这篇文章主要讲述Centos7下快速安装mysql5.7相关的知识，希望能为你提供帮助。
安装mysql5.71.提前准备

yum install gcc mysql-libs mysql-devel -y
useradd mysql -s /sbin/nologin -M
if [ -f /etc/my.cnf ]; then
/bin/mv /etc/my.cnf /etc/my.cnf.bak
fi
mkdir /data/soft/mysql -p##mysql程序目录
mkdir /data/db/mysql -p##mysql数据目录
mkdir /tmp/mysql##mysql socket文件目录
mkdir /data/db/mysql/binlog##mysql binlog目录
chown -R mysql.mysql /data/soft/mysql
chown -R mysql.mysql /data/db/mysql
chown -R mysql.mysql /tmp/mysql

2.下载二进制包

wget https://cdn.mysql.com//Downloads/MySQL-5.7/mysql-5.7.36-linux-glibc2.12-x86_64.tar.gz
## 或者网盘下载链接: https://caiyun.139.com/m/i?185CDQsUyy6B5提取码:uRG0
tar zxf mysql-5.7.36-linux-glibc2.12-x86_64.tar.gz
mv mysql-5.7.36-linux-glibc2.12-x86_64/*/data/soft/mysql/

3.配置my.cnf文件

cat > /data/soft/mysql/my.cnf< < EOF
[mysql]
default-character-set=utf8
host = localhost
socket=/tmp/mysql/mysql.sock
[mysqld]
user= mysql
bind-address = 0.0.0.0
socket=/tmp/mysql/mysql.sock
basedir=/data/soft/mysql
datadir=/data/db/mysql/data
log-bin=/data/db/mysql/binlog/binlog
expire_logs_days = 2
server-id=1
#skip-name-resolve
max_connections=4000
default_storage_engine= InnoDB
character_set_server= utf8
# INNODB OPTIONS #
innodb_buffer_pool_size= 2G
innodb_log_file_size= 256M
innodb_log_buffer_size= 32M
innodb_flush_log_at_trx_commit= 2
innodb_file_per_table= 1
innodb_open_files= 2048
# CACHES AND LIMITS #
tmp_table_size= 256M
max_heap_table_size= 256M
query_cache_type= 0
query_cache_size= 0
thread_cache_size= 32
open_files_limit= 65535
table_definition_cache= 4096
table_open_cache= 2048
interactive_timeout= 31536000
wait_timeout= 31536000
# MyISAM #
key_buffer_size= 32M
#myisam_recover= FORCE,BACKUP
# SAFETY #
max_allowed_packet= 1024M
max_connect_errors= 10000
sql_mode= NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
innodb= FORCE
[mysqldump]
quick
max_allowed_packet = 1024M
[mysql]
no-auto-rehash
# Remove the next comment character if you are not familiar with SQL
#safe-updates
[myisamchk]
key_buffer_size = 128M
sort_buffer_size = 128M
read_buffer = 4M
write_buffer = 4M
[mysqlhotcopy]
interactive-timeout
EOF

4.配置启动脚本

/bin/cp/data/soft/mysql/support-files/mysql.server /etc/rc.d/init.d/mysqld
sed -i "s#conf=/etc/my.cnf#conf=/data/soft/mysql/my.cnf#g" /etc/rc.d/init.d/mysqld
sed -i "s#conf=/etc/my.cnf#conf=/data/soft/mysql/my.cnf#g" /etc/rc.d/init.d/mysqld
sed -i "s#datadir=/usr/local/mysql/data#datadir=/data/db/mysql#g" /etc/rc.d/init.d/mysqld
sed -i "s#/usr/local/mysql#/data/soft/mysql#g" /etc/rc.d/init.d/mysqld

5.初始化mysql

/data/soft/mysql/bin/mysqld --defaults-file=/data/soft/mysql/my.cnf --user=mysql --basedir=/data/soft/mysql/--initialize-insecure##初始化mysql
chmod +x /etc/init.d/mysqld
chkconfig mysqld on
chkconfig --add mysqld
/etc/init.d/mysqld start##启动mysql
mkdir -p /var/lib/mysql
ln -sf /tmp/mysql/mysql.sock/tmp/mysql.sock
ln -s /tmp/mysql/mysql.sock /var/lib/mysql/mysql.sock
echo export PATH="$PATH:/data/soft/mysql/bin" > > /etc/profile
source /etc/profile

6.初始化root密码