nginx+keepalived+php+memcached+repcached

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部署准备：                                            

VIP1      192.168.1.9

VIP2      192.168.1.10

nginx1     192.168.1.11     nginx php keepalived memcached repcached

Nginx2     192.168.1.12     nginx php keepalived memcached repcached

 

一、部署nginx1

1.安装nginx

yum -y installpcre-devel zlib-devel openssl-devel

useradd -M -s/sbin/nologin nginx

tar xfnginx-1.6.2.tar.gz

cd nginx-1.6.2

./configure--prefix=/usr/local/nginx --user=nginx --group=nginx --with-file-aio--with-http_stub_status_module --with-http_ssl_module --with-http_flv_module--with-http_gzip_static_module && make && make install

 

启动nginx

ln -s/usr/local/nginx/sbin/nginx /usr/local/sbin/

nginx

 

2.安装php

tar xfphp-5.3.28.tar.gz

cd php-5.3.28

./configure--prefix=/usr/local/php --with-openssl --enable-fpm --enable-sockets --enable-sysvshm  --enable-xml --with-config-file-path=/etc && make && make install

 

cp/usr/local/php/etc/php-fpm.conf.default /usr/local/php/etc/php-fpm.conf

 

启动php-fpm

cd /usr/local/php/

sbin/php-fpm

如果启动报错：

[[email protected]]# sbin/php-fpm

[01-Dec-201600:41:54] ALERT: [pool www] pm.min_spare_servers(0) must be a positive value

[01-Dec-201600:41:54] ERROR: failed to post process the configuration

排错方法：

vim /usr/local/php/etc/php-fpm.conf

把以下几项的注释去掉

pm.start_servers=20

pm.min_spare_servers=5

pm.max_spare_servers=35

 

如下为启动成功

[[email protected]~]# netstat -antp |grep php-fpm

tcp        0     0 127.0.0.1:9000             0.0.0.0:*                   LISTEN      6337/php-fpm

3.整合nginx、php

修改nginx.conf以支持php

vim /usr/local/nginx/conf/nginx.conf

添加以下红色部分：

server {

        listen 80;

        server_name localhost;

        location / {

             root   html;

             index index.html index.html;

       location ~ \.php$ {

           fastcgi_pass   127.0.0.1:9000;

           fastcgi_index  index.php;

           fastcgi_param SCRIPT_FILENAME  /$document_root$fastcgi_script_name;

           include        fastcgi_params;

         }      

 }

 

创建php测试页

cd /usr/local/nginx/html/

vim index.php

<?php

phpinfo();

?>

 

重启nginx

killall -9 nginx

nginx

验证：

访问http://192.168.1.11/index.php，出现以下页面


技术分享

Nginx与php整合成功

 

4.安装memcached

yum -y install gccopenssl-devel pcre-devel zlib-devel

 

tar xflibevent-2.0.15-stable.tar.gz

cd libevent-2.0.15-stable

./configure--prefix=/usr/local/libevent && make && make install

 

tar xfmemcached-1.4.5.tar.gz

cd memcached-1.4.5

./configure--prefix=/usr/local/memcached --with-libevent=/usr/local/libevent/ &&make && make install

 

vim /etc/ld.so.conf

加入红色内容：

include ld.so.conf.d/*.conf

/usr/local/libevent/lib/

 

ldconfig

/usr/local/memcached/bin/memcached -u root -m 512M -n 10 -f 2 -d -vvv -c 512

选项：

       -h       #查看帮助信息

       -p       #指定memcached监听的端口号默认11211

       -l       #memcached服务器的ip地址

       -u       #memcached程序运行时使用的用户身份必须是root用户

       -m     #指定使用本机的多少物理内存存数据默认64M

       -c      #memcached服务的最大链接数

       -vvv  #显示详细信息

       -n       #chunk size 的最小空间是多少单位字节

       -f      #chunk size大小增长的倍数默认 1.25倍

       -d       #在后台启动

 

检测memcached是否启动：

netstat  -antp| grep :11211

tcp        0     0 0.0.0.0:11211              0.0.0.0:*                   LISTEN      97860/memcached

测试memcached 能否存取数据

yum -y installtelnet

telnet 192.168.1.11 11211

set username 0 08    

zhangsan

STORED

get username

VALUE username 0 8

zhangsan

END

quit

Connection closedby foreign host.

 

Memcached安装成功

 

5.整合php、memcached

安装php支持memcached模块

需要安装libmemcached客户端库，php的扩展memcached模块，因为该扩展是依赖libmemcached的API

 

安装libmemcached客户端库

tar xflibmemcached-1.0.18.tar.gz

cd libmemcached-1.0.18

./configure-prefix=/usr/local/libmemcached -with-memcached && make && makeinstall

 

安装php的扩展memcached模块

tar xfmemcached-2.2.0.tgz

cd memcached-2.2.0

/usr/local/php/bin/phpize   //先使用phpize命令生成一个configure文件

./configure-enable-memcached -with-php-config=/usr/local/php/bin/php-config -with-zlib-dir-with-libmemcached-dir=/usr/local/libmemcached -prefix=/usr/local/phpmemcached--disable-memcached-sasl

make &&make install

 

记录下安装成功后的提示，类似于：

Installing sharedextensions:    /usr/local/php/lib/php/extensions/no-debug-non-zts-20090626/

 

cp /root/php-5.3.28/php.ini-development/etc/php.ini  //在编译安装php时指定配置文件的路径是/etc下

 

增加扩展extension配置文件

vim /etc/php.ini

添加以下内容：

822 extension_dir ="/usr/local/php/lib/php/extensions/no-debug-non-zts-20090626/"

823 extension = "memcached.so"

 

重启php-fpm：

killall -9 php-fpm

/usr/local/php/sbin/php-fpm

执行php –m命令查看是否加载了memcached模块

/usr/local/php/bin/php–m

 

访问http://192.168.1.11/index.php出现以下页面

技术分享

 

 

建立测试页面：

vim /usr/local/nginx/html/memcached.php

<?php

session_start();

if(!isset($_SESSION[‘test‘])){

$_SESSION[‘test‘]= time();

}

print$_SESSION[‘test‘];

print"<br><br>";

print"SessionID: " . session_id();

?>

访问http://192.168.1.11/memcached.php出现以下页面

技术分享

单台nginx+php+memcached存储session信息完成

 

二、部署nginx2

Nginx2与Nginx1做相同操作

最后访问http://192.168.1.12/memcached.php出现以下页面

技术分享

三、分别在nginx1和nginx2上安装keepalived实现高可用

在两台nginx上做以下相同操作：

yum -y installkernel-devel openssl-devel

tar xfkeepalived-1.2.13.tar.gz

cd keepalived-1.2.13

./configure--prefix=/ --with-kernel-dir=/usr/src/kernels/2.6.32-504.el6.x86_64/ &&make && make install

chkconfig --addkeepalived

chkconfig keepalived on

chkconfig --list keepalived

 

修改nginx1上的keepalived配置文件

vim /etc/keepalived/keepalived.conf

 

!Configuration File for keepalived

 

global_defs{

   notification_email {

        [email protected].com

}

   smtp_server 127.0.0.1

   smtp_connect_timeout 30

   router_id LVS_DEVEL

}

 

 

vrrp_instanceVI_1 {

    state BACKUP

    interface eth0

    virtual_router_id 51

    priority 50

    advert_int 1

    authentication {

        auth_type PASS

        auth_pass 123

    }

    virtual_ipaddress {

        192.168.1.9

    }

}

 

vrrp_instanceVI_2 {

    state MASTER

    interface eth0

    virtual_router_id 52

    priority 100

    advert_int 1

    authentication {

        auth_type PASS

        auth_pass 123

}

    virtual_ipaddress {

        192.168.1.10

    }

}

 

修改nginx2上的keepalived配置文件

vim /etc/keepalived/keepalived.conf

 

!Configuration File for keepalived

 

global_defs{

   notification_email {

        [email protected]

}

   smtp_server 127.0.0.1

   smtp_connect_timeout 30

   router_id LVS_DEVEL

}

 

 

vrrp_instanceVI_1 {

    state MASTER

    interface eth0

    virtual_router_id 51

    priority 100

    advert_int 1

    authentication {

        auth_type PASS

        auth_pass 123

    }

    virtual_ipaddress {

        192.168.1.9

    }

}

 

vrrp_instanceVI_2 {

    state BACKUP

    interface eth0

    virtual_router_id 52

    priority 50

    advert_int 1

    authentication {

        auth_type PASS

        auth_pass 123

    }

    virtual_ipaddress {

        192.168.1.10

    }

}

 

分别启动nginx1和nginx2的keepalived服务

service keepalived start

 

nginx1的VIP地址为192.168.1.10

nginx2的VIP地址为192.168.1.9

 

 


本文出自 “lyndon” 博客，请务必保留此出处http://lyndon.blog.51cto.com/11474010/1950470

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