一分鍾完成MySQL5.7安裝部署

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Part1:寫在最前

MYSQL5.7.15是截止至本文撰寫當日，mysql官網的最新社區版，mysql5.7的多項功能優化可以用激動人心來形容，嫌安裝麻煩？沒關系，跟着本文，帶你1分鍾搞定MySQL5.7.15數據庫安裝部署。

 

Part2:僅僅安裝就夠了？

不，當然不夠，MySQL5.7的多項功能特性更新，無法一一贅述，因此，我們先從和本文最相關的my.cnf，來解讀一些MySQL5.7的部分新特性。

在之前我寫過一篇MySQL5.6的新特性參數，諸如：

innodb_buffer_pool_dump_at_shutdown=1  它dump的不是數據，是Id號

innodb_buffer_pool_load_at_startup=1

開啟這個兩個參數當數據庫重啟后把這些熱數據重新加載回去

只有正常關庫才會dump熱數據塊，宕機和kill -9不會

更多5.6安裝內容可移步：

http://suifu.blog.51cto.com/9167728/1846671

 

在5.7里，一個新的系統參數：innodb_buffer_pool_dump_pct,其默認值為25

允許DBA控制每個緩沖池最近使用頁的百分比來導出，以減緩導出innodb buffer pool所有頁占用過大的磁盤。如果innodb buffer pool里緩存了100個頁，那么會將最近使用的25個頁導出去，最大值是100，意思為全部導出，如下圖所示：

注：在MariaDB10.1里，同樣提供了該參數，不過其默認值是100

 

 

在線調整innodb_buffer_pool_size,不用重啟mysql進程

在MySQL5.6/MariaDB 10.1版本，調整該參數必須重啟MySQL進程才可以生效，而mysql5.7版本里，可以直接動態設置，非常方便。

這個功能應用場景如：

1.機器新增內存，DBA忘記調大該參數；

2.工作交接，新來的DBA發現前任DBA對該參數設置不合理。

下面在我機器里進行測試，把512M內存變更為256M，見下圖：

需注意的是，在調整buffer_pool期間，用戶的請求會被阻塞，直到調整完畢，所以請勿在高峰期調整。

 

 

 

Part3:整個流程分3步

1.mysql官網下載二進制版本的mysql5.7.15安裝包(mysql-5.7.15-linux-glibc2.5-x86_64.tar.gz)至/root目錄

2.執行下文所述的mysql_auto_install.sh腳本

3.輸入您設置的密碼登錄數據庫

 

 

Part4:自動化腳本

[root@HE2 ~]# cat mysql_auto_install.sh
###### 二進制自動安裝數據庫腳本root密碼MANAGER將腳本和安裝包放在/root目錄即可###############
######數據庫目錄/usr/local/mysql############
######數據目錄/data/mysql############
######慢日志目錄/data/slowlog############
######端口號默認3306其余參數按需自行修改############
 
##################
#author：[e-mail]#
##################
#!/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<<EOF
* 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<<EOF
[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=8M
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=75
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<<EOF
/usr/local/mysql/lib
EOF
ldconfig
 
if [ -d "/proc/vz" ];then
ulimit -s unlimited
fi
 
/etc/init.d/mysqld start
 
 
cat >> /etc/profile <<EOF
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<<EOF
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:登錄&享受吧

輸入用戶名密碼（默認為MANAGER)登錄數據庫

 

至此，MySQL5.7.15安裝完成

 

——總結——

MySQL5.7擁有諸多讓我們激動和期待的新功能，限於文章篇幅原因，這里僅僅介紹冰山一角。由於筆者的水平有限，編寫時間也很倉促，文中難免會出現一些錯誤或者不准確的地方，不妥之處懇請讀者批評指正。

 

本文出自 “歲伏” 博客，請務必保留此出處http://suifu.blog.51cto.com/9167728/1855415