Linux 之 LNMP服务器搭建-MySQL

LNMP服务器搭建-MySQL

---

 参考教程：【千峰教育】

---

 系统版本：

　　CentOS 6.8

---

关闭防火墙和Selinux

service iptables stop
setenforce 0

---

 安装mysql

（1）创建目录、设置权限

mkdir -p /data/www #创建数据库文件保存目录
chown -R www:www /data/www #设置目录所有者
chmod -R 700 /data/www #设置目录权限

（2）创建mysql管理用户

useradd mysql -s /sbin/nologin #创建用户mysql，不允许直接登录系统
mkdir -p /var/mysql/data #创建mysql数据库存放目录
chown -R mysql:mysql /var/mysql/data #设置mysql数据库目录权限

（3）解压源码包
cd /lnmp/src
tar -zxvf mysql-5.5.62.tar.gz
cd mysql-5.5.62

（4）配置

cmake . -DCMAKE_INSTALL_PREFIX=/usr/local/mysql 
-DMYSQL_UNIX_ADDR=/usr/local/mysql/mysql.sock 
-DDEFAULT_CHARSET=utf8 
-DDEFAULT_COLLATION=utf8_general_ci 
-DWITH_MYISAM_STORAGE_ENGINE=1 
-DWITH_INNOBASE_STORAGE_ENGINE=1 
-DWITH_MEMORY_STORAGE_ENGINE=1 
-DWITH_READLINE=1 
-DENABLED_LOCAL_INFILE=1 
-DMYSQL_DATADIR=/usr/mysql/data 
-DMYSQL_USER=mysql 
-DMYSQL_TCP_PORT=3306

（5）安装

make && make install

（6）配置

cd /usr/local/mysql
cp ./support-files/my-huge.cnf /etc/my.cnf #拷贝配置文件

vim /etc/my.cnf #编辑配置文件，在【mysqld】部分增加
datadir=/var/mysql/data #添加mysql数据库路径

./scripts/mysql_install_db --user=mysql #生成mysql系统数据库
cp ./support-files/mysql.server /etc/rc.d/init.d/mysqld #mysql加入系统启动
vim /etc/rc.d/init.d/mysqld #编辑
basedir=/usr/local/mysql #mysql程序安装路径
datadir=/var/mysql/data #mysql数据库存放目录

chmod 755 /etc/init.d/mysqld #增加执行权限
chkconfig mysqld on #加入开机启动项sock

chown -R mysql /usr/local/mysql #修改msyql所属用户为mysql
service mysqld start #启动mysql

vim /etc/profile #把mysql服务加入系统环境变量
export PATH=$PATH:/usr/local/mysql/bin
source /etc/profile #使配置立即生效

mkdir /var/lib/mysql #创建目录
ln -s /tmp/mysql.sock /var/lib/mysql/mysql.sock #添加软连接
mysql_secure_installation #设置mysql密码，根据提示按Y，回车输入2次密码
或者这样设置密码：
mysqladmin -u root -p password "123456" #直接修改密码

（7）查看mysql状态：
service mysqld status
启动mysql：
service mysqld start|stop|restart

---

 常见错误：

问题一：
安装mysql时，错误提示：
CMake Error at CMakeLists.txt:111 (PROJECT):
No CMAKE_C_COMPILER could be found.

Tell CMake where to find the compiler by setting either the environment
variable "CC" or the CMake cache entry CMAKE_C_COMPILER to the full path to
the compiler, or to the compiler name if it is in the PATH.

CMake Error at CMakeLists.txt:111 (PROJECT):
No CMAKE_CXX_COMPILER could be found.

Tell CMake where to find the compiler by setting either the environment
variable "CXX" or the CMake cache entry CMAKE_CXX_COMPILER to the full path
to the compiler, or to the compiler name if it is in the PATH.

-- Configuring incomplete, errors occurred!
报错意思：
找不到cmake_c_编译器。
解决方法：
安装gcc 和 gcc-c++。
gcc gcc-c++

问题二：安装mysql时，cmake报错：
-- Could NOT find Curses (missing: CURSES_LIBRARY CURSES_INCLUDE_PATH)
CMake Error at cmake/readline.cmake:83 (MESSAGE):
Curses library not found. Please install appropriate package,

remove CMakeCache.txt and rerun cmake.On Debian/Ubuntu, package name is libncurses5-dev, on Redhat and derivates it
is ncurses-devel.
Call Stack (most recent call first):
cmake/readline.cmake:118 (FIND_CURSES)
cmake/readline.cmake:214 (MYSQL_USE_BUNDLED_READLINE)
CMakeLists.txt:394 (MYSQL_CHECK_READLINE)

-- Configuring incomplete, errors occurred!
需要安装Curses library。
yum install -y ncurses*

---