MySQL5.7安裝部署

1分鐘完成MySQL5.7安裝部署

 

1分鐘完成MySQL5.7安裝部署

簡介

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的多項功能優化能夠用激動人心來形容，嫌安裝麻煩？不要緊，跟着本文，帶你1分鐘搞定MySQL5.7.15數據庫安裝部署。

 

Part2:僅僅安裝就夠了？

不，固然不夠，MySQL5.7的多項功能特性更新，沒法一一贅述，所以，咱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。

在以前我寫過一篇MySQL5.6的新特性參數，諸如：

innodb_buffer_pool_dump_at_shutdown=1

innodb_buffer_pool_load_at_startup=1

開啓這個兩個參數當數據庫重啓後把這些熱數據從新加載回去

只有正常關庫纔會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裏，一個新的系統參數：innodb_buffer_pool_dump_pct,其默認值爲25

容許DBA控制每一個緩衝池最近使用頁的百分比來導出，以減緩導出innodb buffer pool全部頁佔用過大的磁盤。若是innodb buffer pool裏緩存了100個頁，那麼會將最近使用的25個頁導出去，最大值是100，意思爲所有導出，以下圖所示：

注：在MariaDB10.1裏，一樣提供了該參數，不過其默認值是100

 

 

在線調整innodb_buffer_pool_size,不用重啓mysql進程

在MySQL5.6/MariaDB 10.1版本，調整該參數必須重啓MySQL進程才能夠生效，而mysql5.7版本里，能夠直接動態設置，很是方便。

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.工做交接，新來的DBA發現前任DBA對該參數設置不合理。

下面在我機器裏進行測試，把512M內存變動爲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，因此請勿在高峯期調整。

 

 

實戰

Part1: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陸數據庫

 

 

Part2: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目錄便可###############
######數據庫目錄/usr/local/mysql############
######數據目錄/data/mysql############
######慢日誌目錄/data/slowlog############
######端口號默認3306其他參數按需自行修改############
##################

#!/bin/bash

ls  mysql*tar.gz |grep -o "mysql.*x86_64" || exit 1
MYSQL_TAR=`ls   mysql*tar.gz |grep -o "mysql.*x86_64"`

# 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_TAR 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_TAR,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_TAR"

       isinstallmysql57="y"

       ;;

       *)

       echo "INPUT error,You will exit install $MYSQL_TAR"

 

       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_TAR=================================="

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_TAR installing…………========================="

#mysql directory configuration

tar -zxvf  ${MYSQL_TAR}.tar.gz

mv $MYSQL_TAR /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 eno16777736 | 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
pid-file =/data/mysql/mysql.pid
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=1

###***master-slavereplicationparameters

server-id=1
#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<<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

source  /etc/profile
/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_TAR 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_TAR 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:登陸&享受吧

1.先source一下環境變量文件使生效

[root@HE2 ~] source /etc/profile

 

2.輸入用戶名密碼（默認爲MANAGER)登陸數據庫

 

至此，MySQL5.7.15安裝完成