Mysql数据库多实例配置的示例分析

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二进制安装：[root@lufengcentos ~]# mkdir /home/lufeng/tools -p[root@lufengcentos ~]# cd /home/lufeng/tools   [root@lufengcentos tools]# rz[root@lufengcentos tools]# tar xf mysql-5.5.49-linux2.6-x86_64.tar.gz[root@lufengcentos tools]# mkdir -p /application/mysql-5.5.49[root@lufengcentos tools]# mv mysql-5.5.49-linux2.6-x86_64 /application/mysql-5.5.49创建mysql用户|组[root@lufengcentos tools]# groupadd mysql[root@lufengcentos tools]# useradd mysql -g mysql -s /sbin/nologin -M[root@lufengcentos tools]# ln -s /application/mysql-5.5.49/ /application/mysqlroot@lufengcentos mysql]# sed -i 's#/usr/local/mysql#/application/mysql#g' /application/mysql/bin/mysqld_safe创建多实例数据文件目录[root@Mysql-server_2 ~]# mkdir -p /data/{3306,3307}/data配置相应的配置文件：[root@Mysql-server_2 ~]# cat /data/3306/my.cnf ####################################################[client]#password       = your_passwordport            = 3306socket          = /data/3306/mysql.sock[mysqld]user            = mysqlport            = 3306socket          = /data/3306/mysql.sockbasedir         = /application/mysqldatadir         = /data/3306/datapid-file        = /data/3306/mysql.pidrelay-log       = /data/3306/relay-binrelay-log-info-file = /data/3306/relay-log.infoskip-external-lockingkey_buffer_size = 16Kmax_allowed_packet = 1Mtable_open_cache = 4sort_buffer_size = 64Kread_buffer_size = 256Kread_rnd_buffer_size = 256Knet_buffer_length = 2Kthread_stack = 128Kserver-id       = 1[mysqldump]quickmax_allowed_packet = 2M[mysql]no-auto-rehash[mysql_safe]log-error=/data/3306/mysql_lufeng3306.errpid-file=/data/3306/mysqlf.pid##############################################[root@Mysql-server_2 ~]# cat /data/3307/my.cnf     #############################################[client]#password       = your_passwordport            = 3307socket          = /data/3307/mysql.sock[mysqld]user            = mysqlport            = 3307socket          = /data/3307/mysql.sockbasedir         = /application/mysqldatadir         = /data/3307/datapid-file        = /data/3307/mysql.pidrelay-log       = /data/3307/relay-binrelay-log-info-file = /data/3307/relay-log.infoskip-external-lockingkey_buffer_size = 16Kmax_allowed_packet = 1Mtable_open_cache = 4sort_buffer_size = 64Kread_buffer_size = 256Kread_rnd_buffer_size = 256Knet_buffer_length = 2Kthread_stack = 128Kserver-id       = 2[mysqldump]quickmax_allowed_packet = 2M[mysql]no-auto-rehash[mysql_safe]log-error=/data/3307/mysql_lufeng3307.errpid-file=/data/3307/mysqlf.pid##############################################创建启动文件[root@Mysql-server_2 ~]# cat /data/3306/mysql#!/bin/sh#################################mysql 3306 by lufeng @2017.4.3#################################intport=3306mysql_user="root"mysql_pwd="199429"CmdPath="/application/mysql/bin"mysql_sock="/data/${port}/mysql.sock"#startup function function_start_mysql(){        if [ ! -e "$mysql_sock" ];then                printf "Starting MySQL...\n"                /bin/sh ${CmdPath}/mysqld_safe --defaults-file=/data/${port}/my.cnf 2>&1 >/dev/null  &        else                printf "MySQL is running...\n"                exit        fi}#stop functionfunction_stop_mysql(){        if [ ! -e "$mysql_sock" ];then                printf "MySQL is stopped...\n"                exit        else                printf "Stoping MySQL...\n"                ${CmdPath}/mysqladmin -u ${mysql_user} -p${mysql_pwd} -S /data/${port}/mysql.sock shutdown        fi}#restart functionfunction_restart_mysql(){        printf "Restarting MySQL...\n"        function_stop_mysql        sleep 2        function_start_mysql}case $1 instart)        function_start_mysql;;stop)        function_stop_mysql;;restart)        function_restart_mysql;;*)        printf  "Usage: /data/${port}/mysql {start|stop|restart}\n"esac##########################################################[root@Mysql-server_2 ~]# cat /data/3307/mysql#!/bin/sh#################################mysql 3307 by lufeng @2017.4.3#################################intport=3307mysql_user="root"mysql_pwd="199429"CmdPath="/application/mysql/bin"mysql_sock="/data/${port}/mysql.sock"#startup function function_start_mysql(){        if [ ! -e "$mysql_sock" ];then                printf "Starting MySQL...\n"                /bin/sh ${CmdPath}/mysqld_safe --defaults-file=/data/${port}/my.cnf 2>&1 >/dev/null  &        else                printf "MySQL is running...\n"                exit        fi}#stop functionfunction_stop_mysql(){        if [ ! -e "$mysql_sock" ];then                printf "MySQL is stopped...\n"                exit        else                printf "Stoping MySQL...\n"                ${CmdPath}/mysqladmin -u ${mysql_user} -p${mysql_pwd} -S /data/${port}/mysql.sock shutdown        fi}#restart functionfunction_restart_mysql(){        printf "Restarting MySQL...\n"        function_stop_mysql        sleep 2        function_start_mysql}case $1 instart)        function_start_mysql;;stop)        function_stop_mysql;;restart)        function_restart_mysql;;*)        printf "Usage: /data/${port}/mysql {start|stop|restart}\n"esac#######################################################配置多实例文件权限[root@Mysql-server_2 ~]# chown -R mysql.mysql /data[root@Mysql-server_2 ~]# find /data -name mysql|xargs chmod 700[root@Mysql-server_2 ~]# find /data -name mysql -exec ls -l {} \; -rwx------ 1 mysql mysql 999 4月   3 13:33 /data/3306/mysql-rwx------ 1 mysql mysql 1210 4月   3 13:35 /data/3307/mysql全局变量：[root@Mysql-server_2 ~]# ls /application/mysql/bin/mysql/application/mysql/bin/mysql[root@Mysql-server_2 ~]# echo 'export PATH=/application/mysql/bin:$PATH' >>/etc/profile[root@Mysql-server_2 ~]# tail -1 /etc/profileexport PATH=/application/mysql/bin:$PATH[root@Mysql-server_2 ~]# source /etc/profile[root@Mysql-server_2 ~]# echo $PATH/application/mysql/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin初始化数据库文件[root@Mysql-server_2 scripts]# cd /application/mysql/scripts/[root@Mysql-server_2 scripts]# ./mysql_install_db --basedir=/application/mysql --datadir=/data/3306/data --user=mysql[root@Mysql-server_2 scripts]# ./mysql_install_db --basedir=/application/mysql --datadir=/data/3307/data --user=mysqlInstalling MySQL system tables...170403 13:47:58 [Note] /application/mysql/bin/mysqld (mysqld 5.5.49) starting as process 2971 ...OKFilling help tables...170403 13:47:59 [Note] /application/mysql/bin/mysqld (mysqld 5.5.49) starting as process 2980 ...OK============成功标志启动命令：[root@Mysql-server_2 ~]# /data/3306/mysql startStarting MySQL... [root@Mysql-server_2 ~]# /data/3307/mysql startStarting MySQL...[root@Mysql-server_2 ~]# netstat -lntup|grep mysqltcp        0      0 0.0.0.0:3306                0.0.0.0:*                   LISTEN      3638/mysqld         tcp        0      0 0.0.0.0:3307                0.0.0.0:*                   LISTEN      3962/mysqld   配置开机自启动：[root@Mysql-server_2 ~]# echo "mysql multi instances" >>/etc/rc.local[root@Mysql-server_2 ~]# echo "/data/3306/mysql start" >>/etc/rc.local                      [root@Mysql-server_2 ~]# echo "/data/3307/mysql start" >>/etc/rc.local [root@Mysql-server_2 ~]# tail -3 /etc/rc.local mysql multi instances/data/3306/mysql start/data/3307/mysql start登录：[root@lufengcentos ~]# mysql -S /data/3306/mysql.sock 安全配置：[root@lufengcentos ~]# mysqladmin -u root -S /data/3307/mysql.sock password '199429'[root@lufengcentos ~]# mysql -S /data/3306/mysql.sock -uroot -pEnter password:

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