mysql5.5.14安装
1.创建用户和用户组与赋予数据存放目录权限
groupadd -g 502 mysql
useradd -u 502 -g mysql mysql
2.wget http://www.cmake.org/files/v2.8/cmake-2.8.5.tar.gz
tar zxf cmake-2.8.5.tar.gz -C /usr/local/src
cd /usr/local/src/cmake-2.8.5
./configure
有时需要用到代理
export http_proxy=http://ip:port/
export ftp_proxy=http://ip:port/
3.安装mysql 5.5.14
wget http://mirrors.sohu.com/mysql/MySQL-5.5/mysql-5.5.14.tar.gz
tar zxf mysql-5.5.14.tar.gz
4.创建mysql安装目录和数据存放目录
mkdir -p /usr/local/mysql/
mkdir -p /opt/data/mysql/
chown mysql.mysql -R /opt/data/mysql/
5.编译mysql-5.5.14
CFLAGS=”-O3″ CXX=gcc
CXXFLAGS=”-O3 -felide-constructors -fno-exceptions -fno-rtti”
/usr/local/bin/cmake -DCMAKE_INSTALL_PREFIX=/usr/local/mysql \
-DMYSQL_UNIX_ADDR=/tmp/mysql.sock \
-DDEFAULT_CHARSET=utf8 \
-DDEFAULT_COLLATION=utf8_general_ci \
-DWITH_EXTRA_CHARSETS:STRING=utf8,gbk \
-DWITH_MYISAM_STORAGE_ENGINE=1 \
-DWITH_INNOBASE_STORAGE_ENGINE=1 \
-DWITH_READLINE=1 \
-DENABLED_LOCAL_INFILE=1 \
-DMYSQL_DATADIR=/opt/data/mysql \
-DMYSQL_TCP_PORT=3306
-DWITH_MEMORY_STORAGE_ENGINE=1 \
-DMYSQL_USER=mysql \
-DCMAKE_INSTALL_PREFIX=/home/mysql/mysql -DEXTRA_CHARSETS=all
nohup make -j6 && make install
6.配置文件
cp /etc/my.cnf /etc/my.cnf-`date +%F`
mkdir -p /usr/local/mysql/etc
cp support-files/my-medium.cnf /usr/local/mysql/etc/my.cnf
chgrp -R mysql *
cd /opt/data/mysql/
chown mysql.mysql /opt/data/mysql/
vim /etc/my.cnf加入
innodb_log_files_in_group=2
innodb_data_home_dir = /opt/data/mysql/
innodb_data_file_path = ibdata1:2000M;ibdata2:2000M;ibdata3:20M:autoextend
innodb_log_group_home_dir = /opt/data/mysql/
# 4G RAM
innodb_buffer_pool_size = 1G
innodb_log_file_size = 256M
innodb_log_buffer_size = 8M
innodb_flush_log_at_trx_commit=0
innodb_thread_concurrency=8
innodb_flush_method=O_DIRECT
# perform
tmp_table_size = 512M
max_heap_table_size=128M
6. 设置mysqld的开机启动:
cp support-files/mysql.server /etc/init.d/mysqld
chmod 755 /etc/init.d/mysqld
chkconfig mysqld on
chkconfig –list mysqld
配置环境
#加入mysql到路径
echo pathmunge /usr/local/mysql/bin after > /etc/profile.d/mysql.sh
#执行一下，保证mysql在路径环境变量中
. /etc/profile
或者
vim /etc/profile
PATH=$PATH:/usr/local/mysql/bin
PATH=/usr/local/mysql/bin:$PATH
启动mysql服务
/etc/init.d/mysqld start //服务器端开关
启动完成之后用ps -ef |grep mysql 命令查看是否启动
7 mysql安全设置
设置root帐户的密码
mysqladmin -u root password ‘360buy.com’
删除本机匿名连接的空密码帐号
本机登录mysql
mysql -uroot -p
然后输入上面设置的密码，登录后在mysql的命令行中执行：
use mysql;
delete from user where user=””;
delete from user where password=””;
flush privileges;
quit
