簡介

######數據庫目錄/usr/local/mysql############ ######數據目錄/data/mysql############ ######慢日志目錄/data/slowlog############ ######端口號默認3306其余參數按需自行修改############

安裝腳本

#!/bin/bash cd /usr/local/src/ if [ ! -f mysql-5.7.21-linux-glibc2.12-x86_64.tar.gz ]; then wget https://cdn.mysql.com//Downloads/MySQL-5.7/mysql-5.7.21-linux-glibc2.12-x86_64.tar.gz fiyum install -y autoconf automake imake libxml2-devel expat-devel cmake gcc gcc-c++ libaio libaio-devel bzr bison libtool ncurses-devel gcc gcc-c++ # Check if user is root if [ $(id -u) != "0" ]; thenecho "Error: You must be root to run this script, please use root to install"exit 1 fi clearcd /usr/local/srcif [ ! -f jemalloc-5.0.1.tar.bz2 ]; thenyum install bzip2 -y wget https://github.com/jemalloc/jemalloc/releases/download/5.0.1/jemalloc-5.0.1.tar.bz2 tar -xjvf jemalloc-5.0.1.tar.bz2cd jemalloc-5.0.1/ ./configure -prefix=/usr/local/jemalloc --libdir=/usr/local/lib make && make installecho /usr/local/lib >> /etc/ld.so.conf ldconfig ficp /usr/local/lib/libjemalloc.so /usr/libecho "=========================================================================" echo "A tool to auto-compile & install MySQL 5.7.21 on Redhat/CentOS Linux " echo "=========================================================================" cur_dir=$(pwd) #set mysql root passwordecho "==========================="mysqlrootpwd="123456"echo -e "Please input the root password of mysql:"read -p "(Default password: 123456):" mysqlrootpwdif [ "$mysqlrootpwd" = "" ]; thenmysqlrootpwd="123456"fiecho "==========================="echo "MySQL root password:$mysqlrootpwd"echo "===========================" #which MySQL Version do you want to install? echo "==========================="isinstallmysql57="n"echo "Install MySQL 5.7.21,Please input y"read -p "(Please input y , n):" isinstallmysql57case "$isinstallmysql57" iny|Y|Yes|YES|yes|yES|yEs|YeS|yeS)echo "You will install MySQL 5.7.21"isinstallmysql57="y";;*)echo "INPUT error,You will exit install MySQL 5.7.21"isinstallmysql57="n"exitesacget_char(){SAVEDSTTY=`stty -g`stty -echostty cbreak#dd if=/dev/tty bs=1 count=1 2> /dev/nullstty -rawstty echostty $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/issueuname -aMemTotal=`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 programrpm -qa|grep mysqlrpm -e mysql#Disable SeLinuxif [ -s /etc/selinux/config ]; thensed -i 's/SELINUX=enforcing/SELINUX=disabled/g' /etc/selinux/configfisetenforce 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 net.ipv4.tcp_fin_timeout = 30 net.ipv4.tcp_tw_reuse = 1 net.ipv4.tcp_tw_recycle = 1 net.ipv4.tcp_max_tw_buckets = 4096 net.ipv4.tcp_max_syn_backlog = 4096 " >> /etc/sysctl.confsysctl -p } #Install MySQL function InstallMySQL57() { echo "============================Install MySQL 5.7.21==================================" cd $cur_dir #Backup old my.cnf #rm -f /etc/my.cnf if [ -s /etc/my.cnf ]; thenmv /etc/my.cnf /etc/my.cnf.`date +%Y%m%d%H%M%S`.bak fiecho "============================MySQL 5.7.21 installing…………========================="#mysql directory configuration cd /usr/local/src tar xvf mysql-5.7.21-linux-glibc2.12-x86_64.tar.gz mv mysql-5.7.21-linux-glibc2.12-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" | awk '{ print $2}'| awk -F. '{ print $3$4}'`cat >>/etc/my.cnf<<EOF [client] port=3306 socket=/tmp/mysql.sock default-character-set=utf8 [mysql] no-auto-rehash default-character-set=utf8 [mysqld] port=3306 bind-address = 0.0.0.0 character-set-server=utf8 socket=/tmp/mysql.sock pid-file=/data/mysql/mysqld.pid basedir=/usr/local/mysql datadir=/data/mysql explicit_defaults_for_timestamp=true lower_case_table_names=1 back_log=103 max_connections=3000 max_connect_errors=100000 table_open_cache=512 external-locking=FALSE max_allowed_packet=32M sort_buffer_size=16M join_buffer_size=2M thread_cache_size=51 query_cache_size=32M #query_cache_limit=4M transaction_isolation=REPEATABLE-READ tmp_table_size=96M max_heap_table_size=96M ###***slowqueryparameters long_query_time=1 slow_query_log = 1 slow_query_log_file=/data/slowlog/slow.log ###***binlogparameters log-bin=mysql-bin binlog_cache_size=4M max_binlog_cache_size=4096M max_binlog_size=1024M binlog_format=MIXED expire_logs_days=7 ###***relay-logparameters #relay-log=/data/3307/relay-bin #relay-log-info-file=/data/3307/relay-log.info #master-info-repository=table #relay-log-info-repository=table #relay-log-recovery=1 #***MyISAMparameters key_buffer_size=16M read_buffer_size=1M read_rnd_buffer_size=16M bulk_insert_buffer_size=1M #skip-name-resolve ###***master-slavereplicationparameters server-id=$SERVERID #slave-skip-errors=all#***Innodbstorageengineparameters innodb_buffer_pool_size=2G # 操作系統內存的70%-80%最佳。 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=OFF[mysqldump] quick max_allowed_packet=32M[myisamchk] key_buffer=16M sort_buffer_size=16M read_buffer=8M write_buffer=8M [mysqld_safe] malloc-lib=/usr/lib/libjemalloc.so 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-insecurecp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysqld chmod 700 /etc/init.d/mysqld chkconfig --add mysqld chkconfig --level 2345 mysqld oncat >> /etc/ld.so.conf.d/mysql-x86_64.conf<<EOF /usr/local/mysql/lib EOF ldconfigif [ -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 $mysqlrootpwdcat > /tmp/mysql_sec_script<<EOF use mysql; #delete from mysql.user where user!='root' or host!='localhost'; #grant all privileges on *.* to 'sys_admin'@'%' identified by 'MANAGER'; flush privileges; EOF/usr/local/mysql/bin/mysql -u root -p$mysqlrootpwd -h localhost < /tmp/mysql_sec_script rm -f /tmp/mysql_sec_script #/etc/init.d/mysqld restart echo "============================MySQL 5.7.21 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 ]; thenecho "MySQL: OK"ismysql="ok"elseecho "Error: /usr/local/mysql not found!!!MySQL install failed." fi if [ "$ismysql" = "ok" ]; thenecho "Install MySQL 5.7.21 completed! enjoy it." echo "========================================================================="netstat -lntup else echo "Sorry,Failed to install MySQL!" echo "You can tail /root/mysql-install.log from your server." fi } #The installation logInitInstall 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

備份

mysqldump -uroot -p123456 -B ultrax --single-transaction --master-data=2 > ultrax.sql-A 全備份 -B 備份庫（表結構和數據） --single-transaction 預防鎖 數據一致性 確保本次會話(dump)時，不會看到其他會話已經提交了的數據。 --master-data=2 注釋記錄復制信息=1 記錄change master to 語句

查看ＳＱＬ

egrep -v "#|\*|--|^$" ultrax.sql

恢復

mysql -uroot -p123456 < /root/ultrax.sql

修改密碼

[mysqld] skip-grant-tables./mysqladmin -uroot -p passwordupdate user set password=password('root') where user='root';update user set authentication_string=PASSWORD('123456') where user='root';








本文轉自 295631788 51CTO博客，原文鏈接：http://blog.51cto.com/hequan/2067341，如需轉載請自行聯系原作者

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