简介
Part1:写在最前
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。
由于源码安装费时费力,rpm包可定制性差,生产库一般采用二进制安装包,本文的安装包为二进制安装文件,本文使用的是mysql-5.6.25-linux-glibc2.5-x86_64.tar.gz,如版本不同,替换第109、110行的tar命令后的mysql安装包名即可
Part2:新特性简介
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,本文给的512M,一般为内存的50%-80%
来看一下脚本的具体情况
实战
Part1:自动化脚本
[root@HE3 ~]# cat mysql_auto_install.sh
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 | ###### 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 $3$4}' ` 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 = $SERVERID log-bin = mysql-bin sync_binlog = 1 binlog_cache_size = 4M max_binlog_cache_size = 4096M max_binlog_size = 1024M expire_logs_days = 60 key_buffer_size = 32M read_buffer_size = 1M read_rnd_buffer_size = 16M bulk_insert_buffer_size = 64M character- set -server=utf8 default-storage-engine = InnoDB binlog_format = row innodb_buffer_pool_dump_at_shutdown = 1 innodb_buffer_pool_load_at_startup = 1 binlog_rows_query_log_events = 1 explicit_defaults_for_timestamp = 1 #log_slave_updates=1 #gtid_mode=on #enforce_gtid_consistency=1 #innodb_write_io_threads = 8 #innodb_read_io_threads = 8 #innodb_thread_concurrency = 0 transaction_isolation = REPEATABLE-READ innodb_additional_mem_pool_size = 16M innodb_buffer_pool_size = 512M #innodb_data_home_dir = innodb_data_file_path = ibdata1:1024M:autoextend innodb_flush_log_at_trx_commit = 1 innodb_log_buffer_size = 16M innodb_log_file_size = 512M innodb_log_files_in_group = 2 innodb_max_dirty_pages_pct = 50 innodb_file_per_table = 1 innodb_locks_unsafe_for_binlog = 0 wait_timeout = 14400 interactive_timeout = 14400 skip-name-resolve [mysqldump] quick max_allowed_packet = 32M EOF /usr/local/mysql/scripts/mysql_install_db --basedir= /usr/local/mysql --datadir= /data/mysql --defaults- file = /etc/my .cnf --user=mysql cp /usr/local/mysql/support-files/mysql .server /etc/init .d /mysqld chmod 700 /etc/init .d /mysqld chkconfig --add mysqld chkconfig --level 2345 mysqld on cat >> /etc/ld .so.conf.d /mysql-x86_64 .conf<<EOF /usr/local/mysql/lib EOF ldconfig if [ -d "/proc/vz" ]; then ulimit -s unlimited fi /etc/init .d /mysqld start cat >> /etc/profile <<EOF export PATH=$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 |
Part2:安装
下载完毕安装包,将脚本和安装文件放在/root目录下,执行上述脚本即可(如不是5.6.25版本,需修改脚本132、133行为对应版本号)
[root@HE3 ~]# sh -x mysql_auto_install.sh
如首次安装,请再次执行source /etc/profile
[root@HE3 ~]# source /etc/profile
验证
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 “贺磊的技术博客” 博客,请务必保留此出处http://suifu.blog.51cto.com/9167728/1846671