linux操作系统:centos6.5 64bit(安装了系统默认开发包)
数据库一:
MYSQL版本:mysql-5.0.56
PORT:3306
系统目录:/usr/local/mysql3306
数据库二:
MYSQL版本:mysql-5.1.72
PORT:3307
系统目录:/usr/local/mysql3307
一.安装开发包(使用默认CENTOS更新源):
# yum -y install wget gcc-c++ ncurses ncurses-devel cmake make perl bison openssl openssl-devel gcc* libxml2 libxml2-devel curl-devel libjpeg* libpng* freetype*二.关闭iptables和SELINUX
# service iptables stop# setenforce 0# vi /etc/sysconfig/selinux---------------SELINUX=disabled三.安装mysql数据库实例
1.下载编译包
# su -# mkdir ~/src# cd src# wget http://www.php.cn/# wget http://www.php.cn/2.安装前的初始配置工作：
1).创建一个Mysql用户
# useradd mysql2).新建mysql下data和log子目录
# mkdir -p /usr/local/mysql{3306,3307}/data # mkdir -p /usr/local/mysql{3306,3307}/log3).修改目录的所属者以及所属组权限
# chown -R mysql:mysql /usr/local/mysql{3306,3307}/data/# chown -R mysql:mysql /usr/local/mysql{3306,3307}/log/# chmod 750 /usr/local/mysql{3306,3307}/data # chmod 750 /usr/local/mysql{3306,3307}/log4).创建mysql相关目录并配置权限
# mkdir -p /usr/local/mysql{3306,3307}/etc# chown -R mysql.mysql /usr/local/mysql{3306,3307}/etc# mkdir -p /var/run/mysqld{3306,3307}# chown -R mysql.mysql /var/run/mysqld{3306,3307}# mkdir -p /var/lib/mysqld{3306,3307}# chown -R mysql.mysql /var/lib/mysqld{3306,3307}# cp /etc/my.cnf /usr/local/mysql{3306,3307}/etc3.解包编译安装
编译数据库一:
# cd ~/src# tar -zxvf mysql-5.0.56.tar.gz # cd mysql-5.0.56 ./configure --prefix=/usr/local/mysql3306 --with-mysqld-user=mysql --sysconfdir=/usr/local/mysql3306/etc --localstatedir=/usr/local/mysql3306/data --with-tcp-port=3306 -enable-assembler --with-mysqld-ldflags=-all-static --with-charset=utf8 --with-extra-charsets=utf-8 -with-extra-charsets=all --with-plugins=csv,innobase,myisam,heap --with-unix-socket-path=/tmp/mysql3306.sock# make# make install编译数据库二:
# cd ~/src# tar -zxvf mysql-5.1.71.tar.gz # cd mysql-5.1.71./configure --prefix=/usr/local/mysql3307 --with-mysqld-user=mysql --sysconfdir=/usr/local/mysql3307/etc --localstatedir=/usr/local/mysql3307/data --with-tcp-port=3307 -enable-assembler --with-mysqld-ldflags=-all-static --with-charset=utf8 --with-extra-charsets=utf-8 -with-extra-charsets=all --with-plugins=csv,innobase,myisam,heap --with-unix-socket-path=/tmp/mysql3307.sock# make# make install4.编写mysql配置项：
数据库一配置:
# vi /usr/local/mysql3306/etc/my.cnf-------------------------------------------------------[mysqld]datadir=/usr/local/mysql3306/datasocket=/tmp/mysql3306.sockuser=mysqlport=3306pid-file=/var/lib/mysqld3306/mysql.pid# Disabling symbolic-links is recommended to prevent assorted security riskssymbolic-links=0max_connections= 16384skip-name-resolveskip-lockingkey_buffer = 256Mmax_allowed_packet = 32Mtable_cache = 3072thread_cache_size = 256sort_buffer_size = 16Mread_buffer_size = 4Mread_rnd_buffer_size = 16Mnet_buffer_length = 256Mthread_stack = 8Mquery_cache_size = 128Mquery_cache_limit = 2Mwait_timeout=7200interactive_timeout=7200#loglog-error=/usr/local/mysql3306/log/error.loglog=/usr/local/mysql3306/log/mysql.loglong_query_time=2log-slow-queries= /usr/local/mysql3306/log/slowquery.loglog-bin= /usr/local/mysql3306/log/bin.logexpire_logs_days = 15sync_binlog = 1max_binlog_cache_size = 4294967295local-infile=0default-storage-engine=INNODB [mysqld_safe]log-error=/var/log/mysqld3306.logpid-file=/var/run/mysqld3306/mysqld.pid数据库二配置:
# vi /usr/local/mysql3307/etc/my.cnf-------------------------------------------------------[mysqld]datadir=/usr/local/mysql3307/datasocket=/tmp/mysql3307.sockuser=mysqlport=3307pid-file=/var/lib/mysqld3307/mysql.pid# Disabling symbolic-links is recommended to prevent assorted security riskssymbolic-links=0max_connections= 16384skip-name-resolveskip-lockingkey_buffer = 256Mmax_allowed_packet = 32Mtable_cache = 3072thread_cache_size = 256sort_buffer_size = 16Mread_buffer_size = 4Mread_rnd_buffer_size = 16Mnet_buffer_length = 256Mthread_stack = 8Mquery_cache_size = 128Mquery_cache_limit = 2Mwait_timeout=7200interactive_timeout=7200#loglog-error=/usr/local/mysql3307/log/error.loglog=/usr/local/mysql3307/log/mysql.loglong_query_time=2log-slow-queries= /usr/local/mysql3307/log/slowquery.loglog-bin= /usr/local/mysql3307/log/bin.logexpire_logs_days = 15sync_binlog = 1max_binlog_cache_size = 4294967295local-infile=0default-storage-engine=INNODB[mysqld_safe]log-error=/var/log/mysqld3307.logpid-file=/var/run/mysqld3307/mysqld.pid-------------------------------------------------------5.将mysql的库文件路径加入系统的库文件搜索路径中
方法一：直接做软链接
# ln -s /usr/local/mysql3306/lib/mysql /usr/lib/mysql方法二：利用ldconfig导入系统库
# echo "/usr/local/mysql3306/lib" >> /etc/ld.so.conf.d/mysql.conf# ldconfig6.输出mysql的头文件到系统头文件
# ln -s /usr/local/mysql3306/include/mysql /usr/include/mysql注: 此处只需将一个mysql实例的库文件添加到系统库,无需多次添加
7.进入相应实例的安装路径,初始化各自配置脚本
数据库一配置:
# cd /usr/local/mysql3306# scripts/mysql_install_db --user=mysql --datadir=/usr/local/mysql3306/data数据库二配置:
# cd /usr/local/mysql3307# scripts/mysql_install_db --user=mysql --datadir=/usr/local/mysql3307/data8.复制mysql启动脚本到系统服务目录,并更改脚本配置
# cp /usr/local/mysql3306/support-files/mysql.server /etc/init.d/mysqld3306# cp /usr/local/mysql3307/support-files/mysql.server /etc/init.d/mysqld3307数据库一配置:
# vi /etc/init.d/mysqld3006basedir=/usr/local/mysql3306datadir=/usr/local/mysql3306/dataconf=/usr/local/mysql3306/etc/my.cnf$bindir/mysqld_safe --defaults-file=$conf --datadir=$datadir --pid-file=$server_pid_file $other_args >/dev/null 2>&1 &--------------------------------------------如下图红色标注的为添加的参数:
数据库二配置:
# vi /etc/init.d/mysqld3007basedir=/usr/local/mysql3307datadir=/usr/local/mysql3307/dataconf=/usr/local/mysql3307/etc/my.cnf$bindir/mysqld_safe --defaults-file=$conf --datadir=$datadir --pid-file=$server_pid_file $other_args >/dev/null 2>&1 &--------------------------------------------如下图红色标注的为添加的参数:
9.系统启动项相关配置
数据库一配置:
# chkconfig --add mysqld3306 #添加开机启动服务# chkconfig --level 35 mysqld3306 on #设置mysql启动数据库二配置:
# chkconfig --add mysqld3307 # chkconfig --level 35 mysqld3307 on10.启动mysql
数据库一启动:
# service mysqld3306 start数据库二启动:
# service mysqld3307 start11 添加mysql命令集到系统全局变量
注:如果系统之前未安装mysql客户端,可以将编译好的mysql命令集导入系统全局变量
以后就可以直接使用mysql命令集,而不需要使用绝对路径访问.# echo "PATH=$PATH:/usr/local/mysql3306/bin;export PATH" >> /etc/profile# source /etc/profile12. 设置初始账户,并登陆后台:
数据库一:
# /usr/local/mysql3306/bin/mysqladmin -u root password 123456 #设置超级管理员密码# /usr/local/mysql3306/bin/mysql -P3306 -S/tmp/mysql3306.sock -uroot -p123456 #连接数据库数据库二:
# /usr/local/mysql3307/bin/mysqladmin -u root password 123456 #设置超级管理员密码# /usr/local/mysql3307/bin/mysql -P3307 -S/tmp/mysql3307.sock -uroot -p123456 #连接数据库注: 因为加了mysql环境变量,以后系统后台可以直接使用mysql命令登录,这里使用绝对路径是为了规范操作
# mysql -P3307 -S/tmp/mysql3307.sock -uroot -p12345613.端口测试:
#lsof -i:3306#lsof -i:3307OK,大功告成!
四、问题
1、-bash: ./scripts/mysql_install_db: No such file or directory
安装过程中执行
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scripts/mysql_install_db --user=mysql --datadir=/usr/local/mysql3306/data报错信息为:
-bash: ./scripts/mysql_install_db: No such file or directory说明在mysql的安装目录下没有scripts目录，此时，可以将解压的源码中的script目录拷贝到安装目录下，重新执行命令。
2、cp: cannot stat `/usr/local/mysql3307/support-files/mysql.server': No such file or directory
安装过程中执行命令
cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysqld3307报错信息为:
cp: cannot stat `/usr/local/mysql3307/support-files/mysql.server': No such file or directory将解压的源码中的support-files目录拷贝到安装目录下，重新执行命令
3、env: /etc/init.d/mysqld3307: Permission denied
启动数据库的时候执行命令
service mysqld3307 start报错信息为：
env: /etc/init.d/mysqld3307: Permission denied此时要为相应的文件授权，执行命令
chmod a+wrx /etc/init.d/mysqld3307重新执行启动MySQL数据库服务的命令service mysqld3307 start
以上就是详细介绍MySQL之-Centos安装多个mysql数据库的配置实例的详细内容，更多请关注创想鸟其它相关文章！
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