MySQL 5.6生产库自动化安装部署

自动化运维是一个DBA应该掌握的技术。其中，自动化安装数据库是一项基本的技能，本文中的安装脚本已通过测试，作为生产库来说没有问题，鉴于每个公司存储规划要求不同，可以按需自行修改脚本。

脚本中已经注释说明一些基本的安装信息
本脚本默认启用5.6部分新特性
innodb_buffer_pool_dump_at_shutdown=1 它dump的不是数据，是Id号
innodb_buffer_pool_load_at_startup=1
开启这个两个参数当数据库重启后把这些热数据重新加载回去
只有正常关库才会dump热数据块，宕机和kill -9不会
部分参数按需整改，例如innodb_buffer_pool_size,本文给的512M，一般为内存的50%-80%

来看下脚本的具体情况，本文的安装包为mysql-5.6.25-linux-glibc2.5-x86_64.tar.gz,如版本不同，替换第132行的tar命令后的mysql版本即可
[root@HE3 ~]# cat mysql_auto_install.sh
###### 二进制自动安装数据库脚本root密码MANAGER将脚本和安装包放在/root目录即可###############
######数据库目录/usr/local/mysql############
######数据目录/data/mysql############
######日志目录/log/mysql############
######端口号默认3306其余参数按需自行修改############
##################
#author：[email]rrhelei@126.com[/email]#
##################
#!/bin/bash
export PATH=/bin:/sbin:/usr/bin:/usr/sbin:/opt/bin:/opt/sbin:~/bin
# Check if user is root
if [ $(id -u) != "0" ]; then
echo "Error: You must be root to run this script, please use root to install"
exit 1
fi
clear
echo "========================================================================="
echo "A tool to auto-compile & install MySQL 5.6.25 on RedHat/CentOS Linux "
echo "========================================================================="
cur_dir=$(pwd)
#set mysql root password
echo "==========================="
mysqlrootpwd="MANAGER"
echo -e "Please input the root password of mysql:"
read -p "(Default password: MANAGER):" mysqlrootpwd
if [ "$mysqlrootpwd" = "" ]; then
mysqlrootpwd="MANAGER"
fi
echo "==========================="
echo "MySQL root password:$mysqlrootpwd"
echo "==========================="
#which MySQL Version do you want to install?
echo "==========================="
isinstallmysql56="n"
echo "Install MySQL 5.6.25,Please input y"
read -p "(Please input y , n):" isinstallmysql56
case "$isinstallmysql56" in
y|Y|Yes|YES|yes|yES|yEs|YeS|yeS)
echo "You will install MySQL 5.6.25"
isinstallmysql56="y"
;;
*)
echo "INPUT error,You will exit install MySQL 5.6.25"
isinstallmysql56="n"
exit
esac
get_char()
{
SAVEDSTTY=`stty -g`
stty -echo
stty cbreak
#dd if=/dev/tty bs=1 count=1 2> /dev/null
stty -raw
stty echo
stty $SAVEDSTTY
}
echo ""
echo "Press any key to start...or Press Ctrl+c to cancel"
char=`get_char`
# Initialize the installation related content.
function InitInstall()
{
cat /etc/issue
uname -a
MemTotal=`free -m | grep Mem | awk '{print $2}'`
echo -e "\n Memory is: ${MemTotal} MB "
#Set timezone
#rm -rf /etc/localtime
#ln -s /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
#Delete Old Mysql program
rpm -qa|grep mysql
rpm -e mysql
#yum -y remove mysql-server mysql mysql-libs
#yum -y remove php-mysql
#yum -y install yum-fastestmirror
#yum -y update
#Disable SeLinux
if [ -s /etc/selinux/config ]; then
sed -i 's/SELINUX=enforcing/SELINUX=disabled/g' /etc/selinux/config
fi
setenforce 0
}
#Installation of depend on and optimization options.
function InstallDependsAndOpt()
{
cd $cur_dir
cat >>/etc/security/limits.conf<> /etc/sysctl.conf
}
#Install MySQL
function InstallMySQL56()
{
echo "============================Install MySQL 5.6.22=================================="
cd $cur_dir
#Backup old my.cnf
#rm -f /etc/my.cnf
if [ -s /etc/my.cnf ]; then
mv /etc/my.cnf /etc/my.cnf.`date +%Y%m%d%H%M%S`.bak
fi
#mysql directory configuration
groupadd mysql -g 512
useradd -u 512 -g mysql -s /sbin/nologin -d /home/mysql mysql
tar xvf /root/mysql-5.6.25-linux-glibc2.5-x86_64.tar.gz
mv /root/mysql-5.6.25-linux-glibc2.5-x86_64 /usr/local/mysql
mkdir -p /data/mysql
mkdir -p /log/mysql
chown -R mysql:mysql /data/mysql
chown -R mysql:mysql /usr/local/mysql
chown -R mysql:mysql /log
#edit /etc/my.cnf
SERVERID=`ifconfig eth0 | grep "inet addr" | awk '{ print $2}'| awk -F. '{ print $3$4}'`
cat >>/etc/my.cnf<> /etc/ld.so.conf.d/mysql-x86_64.conf<> /etc/profile < /tmp/mysql_sec_script<&1 | tee /root/mysql-install.log
CheckAndDownloadFiles 2>&1 | tee -a /root/mysql-install.log
InstallDependsAndOpt 2>&1 | tee -a /root/mysql-install.log
InstallMySQL56 2>&1 | tee -a /root/mysql-install.log
CheckInstall 2>&1 | tee -a /root/mysql-install.log

执行脚本后，输入用户名密码（默认MANAGER)后登录数据库成功。

至此，MySQL5.6安装完成。