mysql-5.7.21 二进制安装 | Jemalloc内存优化 | 备份恢复｜修改密码 - MySQL数据库

######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############

安装脚本

#!/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 fi yum 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 [ $(id -u) != "0" ]; then echo "Error: You must be root to run this script, please use root to install" exit 1 fi clear cd /usr/local/src if [ ! -f jemalloc-5.0.1.tar.bz2 ]; then yum install bzip2 -y wget https://github.com/jemalloc/jemalloc/releases/download/5.0.1/jemalloc-5.0.1.tar.bz2 tar -xjvf jemalloc-5.0.1.tar.bz2 cd jemalloc-5.0.1/ ./configure -prefix=/usr/local/jemalloc --libdir=/usr/local/lib make && make install echo /usr/local/lib >> /etc/ld.so.conf ldconfig fi cp /usr/local/lib/libjemalloc.so /usr/lib echo "=========================================================================" echo "A tool to auto-compile & install MySQL 5.7.21 on Redhat/CentOS Linux " echo "=========================================================================" cur_dir=$(pwd) #set mysql root password echo "===========================" mysqlrootpwd="123456" echo -e "Please input the root password of mysql:" read -p "(Default password: 123456):" mysqlrootpwd if [ "$mysqlrootpwd" = "" ]; then mysqlrootpwd="123456" fi echo "===========================" echo "MySQL root password:$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):" isinstallmysql57 case "$isinstallmysql57" in y|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" 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 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.conf sysctl -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 ]; then mv /etc/my.cnf /etc/my.cnf.`date +%Y%m%d%H%M%S`.bak fi echo "============================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 # 操作系统内存的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-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 5.7.21 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 ]; 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 5.7.21 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 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

备份

mysqldump -uroot -p123456 -B ultrax --single-transaction --master-data=2 > ultrax.sql -A 全备份 -B 备份库（表结构和数据） --single-transaction 预防锁数据一致性确保本次会话(dump)时，不会看到其他会话已经提交了的数据。 --master-data=2 注释记录复制信息 =1 记录change master to 语句

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

mysql-5.7.21 二进制安装 | Jemalloc内存优化 | 备份恢复｜修改密码

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安装脚本

备份

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恢复

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