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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 = 512M,本文给的512M,一般给内存的50%-80%。
来看一下脚本的具体情况
[root@HE3 ~]# cat mysql_auto_install.sh
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###### 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:rrhelei@126.com# ################## #!/bin/bash PATH= /bin : /sbin : /usr/bin : /usr/sbin : /opt/bin : /opt/sbin :~ /bin
export PATH # 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<<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 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 $4"3306"}' `
cat >> /etc/my .cnf<<EOF
[client] port = 3306 socket = /tmp/mysql .sock
default-character- set =utf8
[mysql] default-character- set =utf8
[mysqld] port = 3306 socket = /tmp/mysql .sock
basedir = /usr/local/mysql
datadir = /data/mysql
open_files_limit = 3072 back_log = 103 max_connections = 800 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 tmp_table_size = 96M max_heap_table_size = 96M slow_query_log = 1 slow_query_log_file = /log/mysql/slow .log
log-error = /log/mysql/error .log
long_query_time = 1 server- id = $SERVERID
log-bin = mysql-bin sync_binlog = 1 binlog_cache_size = 4M max_binlog_cache_size = 8M max_binlog_size = 1024M expire_logs_days = 60 key_buffer_size = 32M read_buffer_size = 1M read_rnd_buffer_size = 16M bulk_insert_buffer_size = 64M character- set -server=utf8
default-storage-engine = InnoDB binlog_format = row innodb_buffer_pool_dump_at_shutdown = 1 innodb_buffer_pool_load_at_startup = 1 binlog_rows_query_log_events = 1 explicit_defaults_for_timestamp = 1 #log_slave_updates=1 #gtid_mode=on #enforce_gtid_consistency=1 #innodb_write_io_threads = 8 #innodb_read_io_threads = 8 #innodb_thread_concurrency = 0 transaction_isolation = REPEATABLE-READ innodb_additional_mem_pool_size = 16M innodb_buffer_pool_size = 512M innodb_data_file_path = ibdata1:1024M:autoextend innodb_flush_log_at_trx_commit = 1 innodb_log_buffer_size = 16M innodb_log_file_size = 512M innodb_log_files_in_group = 2 innodb_max_dirty_pages_pct = 50 innodb_file_per_table = 1 innodb_locks_unsafe_for_binlog = 0 wait_timeout = 14400 interactive_timeout = 14400 skip-name-resolve [mysqldump] quick max_allowed_packet = 32M EOF /usr/local/mysql/scripts/mysql_install_db --basedir= /usr/local/mysql --datadir= /data/mysql --defaults- file = /etc/my .cnf --user=mysql
cp /usr/local/mysql/support-files/mysql .server /etc/init .d /mysqld
chmod 700 /etc/init .d /mysqld
chkconfig --add mysqld chkconfig --level 2345 mysqld on cat >> /etc/ld .so.conf.d /mysql-x86_64 .conf<<EOF
/usr/local/mysql/lib EOF ldconfig if [ -d "/proc/vz" ]; then
ulimit -s unlimited
fi /etc/init .d /mysqld start
cat >> /etc/profile <<EOF
export PATH=$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 5.6.25 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 5.6.25 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
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。
本文出自 “岁伏” 博客,请务必保留此出处http://suifu.blog.51cto.com/9167728/1846671