简介
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?没关系,跟着本文,带你1分钟搞定MySQL5.7.15数据库安装部署。
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:
http://suifu.blog.51cto.com/9167728/1846671
在5.7里,一个新的系统参数:innodb_buffer_pool_dump_pct,其默认值为25
允许DBA控制每个缓冲池最近使用页的百分比来导出,以减缓导出innodb buffer pool所有页占用过大的磁盘。如果innodb buffer pool里缓存了100个页,那么会将最近使用的25个页导出去,最大值是100,意思为全部导出,如下图所示:
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:
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。
实战
Part1:整个流程分3步
1.mysql官网下载二进制版本的mysql5.7.15安装包(mysql-5.7.15-linux-glibc2.5-x86_64.tar.gz)至/root目录
2.执行下文所述的mysql_auto_install.sh脚本
3.输入您设置的密码登录数据库
Part2:自动化脚本
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 | [root@HE2 ~] # cat mysql_auto_install.sh ###### 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############ ######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$4}' ` cat >> /etc/my .cnf<<EOF [client] port=3306 socket= /tmp/mysql .sock default-character- set =utf8 [mysql] no-auto-rehash default-character- set =utf8 [mysqld] port=3306 character- set -server=utf8 socket= /tmp/mysql .sock basedir= /usr/local/mysql datadir= /data/mysql explicit_defaults_for_timestamp= true lower_case_table_names=1 back_log=103 max_connections=3000 max_connect_errors=100000 table_open_cache=512 external-locking=FALSE max_allowed_packet=32M sort_buffer_size=2M join_buffer_size=2M thread_cache_size=51 query_cache_size=32M #query_cache_limit=4M transaction_isolation=REPEATABLE-READ tmp_table_size=96M max_heap_table_size=96M ###***slowqueryparameters long_query_time=1 slow_query_log = 1 slow_query_log_file= /data/slowlog/slow .log ###***binlogparameters log-bin=mysql-bin binlog_cache_size=4M max_binlog_cache_size=4096M max_binlog_size=1024M binlog_format=MIXED expire_logs_days=7 ###***relay-logparameters #relay-log=/data/3307/relay-bin #relay-log-info-file=/data/3307/relay-log.info #master-info-repository=table #relay-log-info-repository=table #relay-log-recovery=1 #***MyISAMparameters key_buffer_size=16M read_buffer_size=1M read_rnd_buffer_size=16M bulk_insert_buffer_size=1M #skip-name-resolve ###***master-slavereplicationparameters server- id =$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 --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:登录&享受吧
1.先source一下环境变量文件使生效
[root@HE2 ~] source /etc/profile
2.输入用户名密码(默认为MANAGER)登录数据库
至此,MySQL5.7.15安装完成
转自:http://suifu.blog.51cto.com/9167728/1855415