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<<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$4}'`
cat >>/etc/my.cnf<<EOF
[client]
port=3306
default-character-set=utf8
[MysqL]
no-auto-rehash
default-character-set=utf8
[MysqLd]
port=3306
character-set-server=utf8
basedir=/usr/local/MysqL
datadir=/data/MysqL
explicit_defaults_for_timestamp=true
lower_case_table_names=1
back_log=103
max_connections=3000
max_connect_errors=100000
table_open_cache=512
external-locking=FALSE
max_allowed_packet=32M
sort_buffer_size=2M
join_buffer_size=2M
thread_cache_size=51
query_cache_size=32M
#query_cache_limit=4M
transaction_isolation=REPEATABLE-READ
tmp_table_size=96M
max_heap_table_size=96M
###***slowqueryparameters
long_query_time=1
slow_query_log = 1
slow_query_log_file=/data/slowlog/slow.log
log-bin=MysqL-bin
binlog_cache_size=4M
max_binlog_cache_size=4096M
max_binlog_size=1024M
binlog_format=MIXED
expire_logs_days=7
###***relay-logparameters
#relay-log=/data/3307/relay-bin
#relay-log-info-file=/data/3307/relay-log.info
#master-info-repository=table
#relay-log-info-repository=table
#relay-log-recovery=1
#***MyISAMparameters
key_buffer_size=16M
read_buffer_size=1M
read_rnd_buffer_size=16M
bulk_insert_buffer_size=1M
#skip-name-resolve
###***master-slavereplicationparameters
server-id=$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 --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:登录&享受吧
1.先source一下环境变量文件使生效
[root@HE2 ~] source /etc/profile
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。