怎么搭建Memcache服务

安装Memcache

Memcache的搭建需要借助于LAMP或LNMP，本篇博文采用LNMP结构

安装环境如下：

192.168.148.129   Memcache192.168.148.130   php192.168.148.131   nginx192.168.148.136   mysql

• 安装nginx

下载nginx软件包

[root@bogon ~]#  useradd -M -s /sbin/nologin nginx[root@bogon ~]#  yum -y install openssl-devel[root@bogon ~]# tar zxf pcre-8.39.tar.gz -C /usr/src[root@bogon ~]#  tar zxf zlib-1.2.8.tar.gz -C /usr/src[root@bogon ~]#  tar zxf nginx-1.14.0.tar.gz -C /usr/src[root@bogon ~]#  cd /usr/src/nginx-1.14.0/[root@bogon  nginx-1.14.0]# ./configure --prefix=/usr/local/nginx \--user=nginx --group=nginx --with-http_dav_module \--with-http_stub_status_module --with-http_addition_module \--with-http_sub_module --with-http_flv_module --with-http_mp4_module \--with-pcre=/usr/src/pcre-8.39 --with-zlib=/usr/src/zlib-1.2.8 \--with-http_ssl_module --with-http_gzip_static_module && make && make install[root@bogon ~]#  ln -s /usr/local/nginx/sbin/nginx /usr/local/sbin[root@bogon ~]#  nginx[root@bogon ~]#  netstat -anpt | grep 80tcp        0      0 0.0.0.0:80              0.0.0.0:*               LISTEN      8460/nginx: master  

• 安装PHP服务器

下载php软件包

[root@localhost ~]# yum -y install libxml2-devel lzip2-devel libcurl-devel  libmcrypt-devel openssl-devel bzip2-devel [root@localhost ~]# tar zxf libmcrypt-2.5.7.tar.gz [root@localhost ~]# cd libmcrypt-2.5.7/[root@localhost libmcrypt-2.5.7]# ./configure --prefix=/usr/local/libmcrypt && make && make install[root@localhost ~]# tar zxf php-5.6.27.tar.gz [root@localhost ~]# cd php-5.6.27/[root@localhost php-5.6.27]# ./configure --prefix=/usr/local/php5.6 --with-mysql=mysqlnd \--with-pdo-mysql=mysqlnd --with-mysqli=mysqlnd --with-openssl --enable-fpm --enable-sockets \--enable-sysvshm --enable-mbstring --with-freetype-dir --with-jpeg-dir --with-png-dir --with-zlib \--with-libxml-dir=/usr --enable-xml --with-mhash --with-mcrypt=/usr/local/libmcrypt  \--with-config-file-path=/etc --with-config-file-scan-dir=/etc/php.d \--with-bz2 --enable-maintainer-zts && make && make install[root@localhost php-5.6.27]# cp php.ini-production /etc/php.ini[root@localhost php-5.6.27]# cp sapi/fpm/init.d.php-fpm /etc/init.d/php-fpm[root@localhost php-5.6.27]# chmod +x /etc/init.d/php-fpm [root@localhost php-5.6.27]# chkconfig --add php-fpm[root@localhost php-5.6.27]# chkconfig php-fpm on[root@localhost php-5.6.27]# cp /usr/local/php5.6/etc/php-fpm.conf.default /usr/local/php5.6/etc/php-fpm.conf[root@localhost php-5.6.27]# vim /usr/local/php5.6/etc/php-fpm.conf修改内容如下： pid = run/php-fpm.pid listen = 192.168.31.141:9000    \\本地ip地址（千万不能用127.0.0.1）pm.max_children = 50 pm.start_servers = 5 pm.min_spare_servers = 5 pm.max_spare_servers = 35 [root@localhost php-5.6.27]# service php-fpm startStarting php-fpm  done[root@localhost php-5.6.27]# netstat -anpt | grep php-fpmtcp        0      0 192.168.148.130:9000    0.0.0.0:*               LISTEN      130988/php-fpm: mas 

• 安装MySQL数据库

下载mysql脚本一键安装

[root@bogon ~]# mysql -u root -p123mysql> create database testdb1;mysql> use testdb1;mysql> grant all on *.* to xws@'192.168.148.%' identified by '123456';mysql> create table test1(id int not null auto_increment,name varchar(20) default null,primary  key (id)) engine=innodb auto_increment=1 default charset=utf8;mysql> insert into test1(name) values ('tom1'),('tom2'),('tom3'),('tom4'),('tom5');mysql> select * from test1;+----+------+| id | name |+----+------+|  1 | tom1 ||  2 | tom2 ||  3 | tom3 ||  4 | tom4 ||  5 | tom5 |+----+------+5 rows in set (0.00 sec)

nginx操作如下：

[root@bogon nginx-1.14.0]# vim /usr/local/nginx/conf/nginx.conf  //修改如下（大约在43行）        location / {            root   html;            index  index.php index.html index.htm;        }          location ~ \.php$ {            root           /var/www/html;            fastcgi_pass   192.168.148.130:9000;            fastcgi_index  index.php;            fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;            include        fastcgi.conf;        }[root@bogon nginx-1.14.0]# nginx -tnginx: the configuration file /usr/local/nginx/conf/nginx.conf syntax is oknginx: configuration file /usr/local/nginx/conf/nginx.conf test is successful[root@bogon nginx-1.14.0]# nginx -s reload

php操作如下：

[root@bogon ~]# mkdir -p /var/www/html[root@bogon ~]# vim /var/www/html/test.php[root@bogon ~]# vim /var/www/html/test1.php

客户端访问如下：

• 安装Memecache

下载memcache

[root@bogon ~]# tar zxf libevent-2.0.22-stable.tar.gz -C /usr/src/[root@bogon ~]# cd /usr/src/libevent-2.0.22-stable/[root@bogon libevent-2.0.22-stable]# ./configure && make && make install [root@bogon ~]# tar zxf memcached-1.4.33.tar.gz -C /usr/src/[root@bogon ~]# cd /usr/src/memcached-1.4.33/[root@bogon memcached-1.4.33]# ./configure --prefix=/usr/local/memcached \> --with-libevent=/usr/local/ && make && make install[root@bogon ~]# memcached -d -m 2048 -l 192.168.1.7 -p 11211 -c 10240 -P /usr/local/memcached/memcached.pid -u root[root@bogon ~]# netstat -anpt | grep 11211

• php操作如下（安装Memecache客户端）

[root@bogon ~]# tar zxf memcache-3.0.8.tgz -C /usr/src/[root@bogon ~]# cd /usr/src/memcache-3.0.8/[root@bogon memcache-3.0.8]# /usr/local/php5.6/bin/phpize[root@PHP memcache-3.0.8]# ./configure --enable-memcache \--with-php-config=/usr/local/php/bin/php-config && make && make install//执行后会显示memcache.so存放的路径[root@PHP ~]# echo "extension = /usr/local/php/lib/php/extensions/no-debug-zts-20131226/memcache.so" >> /etc/php.ini//在PHP主配置文件中填写memcache.so模块存放的路径[root@PHP ~]# systemctl restart php-fpm[root@PHP ~]# vim /var/www/html/test2.phpconnect('192.168.1.129', 11211) or die ("Could not connect");$version = $memcache->getVersion();echo "Server's version: ".$version."
";$tmp_object = new stdClass;$tmp_object->str_attr = 'test';$tmp_object->int_attr = 123;$memcache->set('key', $tmp_object, false, 600) or die ("Failed to save data at the server");echo "Store data in the cache (data will expire in 600 seconds)
";$get_result = $memcache->get('key');echo "Data from the cache:
";var_dump($get_result);?>//此测试脚本是显示memcached的版本//并且向里面插入了一个缓存时间为600秒的键值对"test=123"，其ID为"key"

客户端访问如下：

在PHP服务器上安装telnet工具测试

[root@PHP ~]# yum -y install telnet[root@PHP ~]# telnet 192.168.148.129 11211           //登陆到memcached的11211端口Trying 192.168.148.129...Connected to 192.168.148.129.Escape character is '^]'.get key              //查询ID为"key"的键值对，可以看到我们测试脚本写入的"test=123"VALUE key 1 66O:8:"stdClass":2:{s:8:"str_attr";s:4:"test";s:8:"int_attr";i:123;}END//在进行上面的get验证时，需要将test2.php文件中插入的键值对的保存时间值改大一些//或者重新访问一下，以免缓存失效，查询不到quit                     //退出当前环境Connection closed by foreign host.[root@PHP ~]# 

测试Memcache缓存数据库

[root@PHP ~]# vim /var/www/html/test4.php connect($memcachehost,$memcacheport) or die ("Could not connect");$query="select * from test1 limit 10";$key=md5($query);if(!$memcache->get($key)){$conn=mysql_connect("192.168.1.8","lzj","123456");                        //指定数据库服务器的IP地址、用户及密码mysql_select_db(testdb1);$result=mysql_query($query);while ($row=mysql_fetch_assoc($result)){$arr[]=$row;}$f = 'mysql';$memcache->add($key,serialize($arr),0,30);$data = $arr ;}else{$f = 'memcache';$data_mem=$memcache->get($key);$data = unserialize($data_mem);}echo $f;echo "
";echo "$key";echo "
";//print_r($data); foreach($data as $a){echo "number is $a[id]";echo "
";echo "name is $a[name]";                    //突出显示信息的字体颜色echo "
";}?>//经常需要修改的地方已经标注了！而且这个测试脚本在Memcache软件中也有

第一次进行访问

第二次进行访问（刷新之后）