如何安装部署MySQL5.7
下面一起来了解下如何安装部署MySQL5.7，相信大家看完肯定会受益匪浅，文字在精不在多，希望如何安装部署MySQL5.7这篇短内容是你想要的。
Part1:写在最前
MYSQL5.7.15是截止至本文撰写当日，mysql官网的最新社区版，mysql5.7的多项功能优化可以用激动人心来形容，嫌安装麻烦？
Part2:仅仅安装就够了？
不，当然不够，MySQL5.7的多项功能特性更新，无法一一赘述，因此，我们先从和本文最相关的my.cnf，来解读一些MySQL5.7的部分新特性。
在之前我写过一篇MySQL5.6的新特性参数，诸如：
innodb_buffer_pool_dump_at_shutdown=1
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
更多5.6安装内容可移步：
https://cache.yisu.com/upload/information/20200310/34/96296.com
注：在MariaDB10.1里，同样提供了该参数，不过其默认值是100
在线调整innodb_buffer_pool_size,不用重启mysql进程
在MySQL5.6/MariaDB 10.1版本，调整该参数必须重启MySQL进程才可以生效，而mysql5.7版本里，可以直接动态设置，非常方便。
这个功能应用场景如：
1.机器新增内存，DBA忘记调大该参数；
2.工作交接，新来的DBA发现前任DBA对该参数设置不合理。
下面在我机器里进行测试，把512M内存变更为256M，见下图：
wKioL1fjdMSSu3ApAAES8CSuJE4611.jpg
需注意的是，在调整buffer_pool期间，用户的请求会被阻塞，直到调整完毕，所以请勿在高峰期调整。
ql############
######慢日志目录/data/slowlog############
######端口号默认3306其余参数按需自行修改############
##################
#author：rrhelei@126.com#
##################
#!/bin/bash
# Check if user is root
if [ $(id -u) != "0" ]; then
echo "Error: You must be root to run this script, please use root to install"
exit 1
fi
clear
echo "========================================================================="
echo "A tool to auto-compile & install MySQL 5.7.15 on Redhat/CentOS Linux "
echo "========================================================================="
cur_dir=$(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 "==========================="
isinstallmysql57="n"
echo "Install MySQL 5.7.15,Please input y"
read -p "(Please input y , n):" isinstallmysql57
case "$isinstallmysql57" in
y|Y|Yes|YES|yes|yES|yEs|YeS|yeS)
echo "You will install MySQL 5.7.15"
isinstallmysql57="y"
;;
*)
echo "INPUT error,You will exit install MySQL 5.7.15"
isinstallmysql57="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
#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< * soft nproc 65535 * hard nproc 65535 * soft nofile 65535 * hard nofile 65535 EOF echo "fs.file-max=65535" >> /etc/sysctl.conf } #Install MySQL function InstallMySQL57() { echo "============================Install MySQL 5.7.15==================================" 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 echo "============================MySQL 5.7.15 installing…………=========================" #mysql directory configuration tar xvf /root/mysql-5.7.15-linux-glibc2.5-x86_64.tar.gz mv /root/mysql-5.7.15-linux-glibc2.5-x86_64 /usr/local/mysql groupadd mysql -g 512 useradd -u 512 -g mysql -s /sbin/nologin -d /home/mysql mysql mkdir -p /data/mysql mkdir -p /data/slowlog chown -R mysql:mysql /data/mysql chown -R mysql:mysql /usr/local/mysql chown -R mysql:mysql /data/slowlog #edit /etc/my.cnf SERVERID=`ifconfig eth0 | grep "inet addr" | awk '{ print $2}'| awk -F. '{ print $3$4}'` cat >>/etc/my.cnf< [client] port=3306 socket=/tmp/mysql.sock default-character-set=utf8 [mysql] no-auto-rehash default-character-set=utf8 [mysqld] port=3306 character-set-server=utf8 socket=/tmp/mysql.sock basedir=/usr/local/mysql datadir=/data/mysql explicit_defaults_for_timestamp=true lower_case_table_names=1 back_log=103 max_connections=3000 max_connect_errors=100000 table_open_cache=512 external-locking=FALSE max_allowed_packet=32M sort_buffer_size=2M join_buffer_size=2M thread_cache_size=51 query_cache_size=32M #query_cache_limit=4M transaction_isolation=REPEATABLE-READ tmp_table_size=96M max_heap_table_size=96M ###***slowqueryparameters long_query_time=1 slow_query_log = 1 slow_query_log_file=/data/slowlog/slow.log ###***binlogparameters log-bin=mysql-bin binlog_cache_size=4M max_binlog_cache_size=4096M max_binlog_size=1024M binlog_format=MIXED expire_logs_days=7 ###***relay-logparameters #relay-log=/data/3307/relay-bin #relay-log-info-file=/data/3307/relay-log.info #master-info-repository=table #relay-log-info-repository=table #relay-log-recovery=1 #***MyISAMparameters key_buffer_size=16M read_buffer_size=1M read_rnd_buffer_size=16M bulk_insert_buffer_size=1M #skip-name-resolve ###***master-slavereplicationparameters server-id=$SERVERID #slave-skip-errors=all #***Innodbstorageengineparameters innodb_buffer_pool_size=512M innodb_data_file_path=ibdata1:10M:autoextend #innodb_file_io_threads=8 innodb_thread_concurrency=16 innodb_flush_log_at_trx_commit=1 innodb_log_buffer_size=16M innodb_log_file_size=512M innodb_log_files_in_group=2 innodb_max_dirty_pages_pct=75 innodb_buffer_pool_dump_pct=50 innodb_lock_wait_timeout=50 innodb_file_per_table=on [mysqldump] quick max_allowed_packet=32M [myisamchk] key_buffer=16M sort_buffer_size=16M read_buffer=8M write_buffer=8M [mysqld_safe] open-files-limit=8192 log-error=/data/mysql/error.log pid-file=/data/mysql/mysqld.pid EOF /usr/local/mysql/bin/mysqld --defaults-file=/etc/my.cnf --user=mysql --datadir=/data/mysql --basedir=/usr/local/mysql --initialize-insecure cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysqld chmod 700 /etc/init.d/mysqld chkconfig --add mysqld chkconfig --level 2345 mysqld on cat >> /etc/ld.so.conf.d/mysql-x86_64.conf< /usr/local/mysql/lib EOF ldconfig if [ -d "/proc/vz" ];then ulimit -s unlimited fi /etc/init.d/mysqld start cat >> /etc/profile < export PATH=$PATH:/usr/local/mysql/bin export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/mysql/lib EOF /usr/local/mysql/bin/mysqladmin -u root password $mysqlrootpwd cat > /tmp/mysql_sec_script< use mysql; delete from mysql.user where user!='root' or host!='localhost'; grant all privileges on *.* to 'sys_admin'@'%' identified by 'MANAGER'; flush privileges; EOF /usr/local/mysql/bin/mysql -u root -p$mysqlrootpwd -h localhost < /tmp/mysql_sec_script #rm -f /tmp/mysql_sec_script #/etc/init.d/mysqld restart echo "============================MySQL 5.7.15 install completed=========================" } function CheckInstall() { echo "===================================== Check install ===================================" clear ismysql="" echo "Checking..." if [ -s /usr/local/mysql/bin/mysql ] && [ -s /usr/local/mysql/bin/mysqld_safe ] && [ -s /etc/my.cnf ]; then echo "MySQL: OK" ismysql="ok" else echo "Error: /usr/local/mysql not found!!!MySQL install failed." fi if [ "$ismysql" = "ok" ]; then echo "Install MySQL 5.7.15 completed! enjoy it." echo "=========================================================================" netstat -ntl else echo "Sorry,Failed to install MySQL!" echo "You can tail /root/mysql-install.log from your server." fi } #The installation log InitInstall 2>&1 | tee /root/mysql-install.log InstallDependsAndOpt 2>&1 | tee -a /root/mysql-install.log InstallMySQL57 > /dev/null CheckInstall 2>&1 | tee -a /root/mysql-install.log Part5:登录&享受吧 1.先source一下环境变量文件使生效 [root@HE2 ~] source /etc/profile 2.输入用户名密码（默认为MANAGER)登录数据库 wKioL1fg55bRtezyAAEwCj3jwm4534.jpg 至此，MySQL5.7.15安装完成 看完如何安装部署MySQL5.7这篇文章后，很多读者朋友肯定会想要了解更多的相关内容，如需获取更多的行业信息，可以关注我们的行业资讯栏目。
