Installing Memcache under CentOS

1. Install via Yum
Yum-y Install memcached

#安装完成后执行:

Memcached–h

2. Memcached operation

View Test Number Modification configuration
Vim/etc/sysconfig/memcached

The contents are as follows:
port= "11211″ #端口
User= "memcached" #用户
maxconn= "1024″ #最大内存
Cachesize= "64″ #缓存大小
Options= "" #其它选项

Can modify port, user and maximum memory, cache size

Systemctl Restart memcached #重启
Systemctl start memcached #启动
Systemctl Enable memcached #开机自启动
Systemctl status memcached #状态
Systemctl Stop memcached #关闭

3. Installing the Php-memcache Extension

Yum-y Install Php-pecl-memcache

#打开配置文件php. ini

Vim/etc/php.ini

#在里面添加扩展:

Extension=memcache.so

#重启下Apache

Systemctl Restart Httpd.service

#测试下扩展安装成功与否

Create a index.php file, and then

<?php phpinfo ();? >

Open the browser, enter the URL, if it appears as follows, the installation is successful:

# If it does not appear as shown, please continue to install Libevent-devel

Yum-y Install Libevent-devel

After this installation, no surprises, should be successful!

4. Firewall Release 11211 Port

Firewall-cmd--permanent--zone=public--add-port=11211/tcp

Proceed to here, everything is ready OK. Now, test it.

5. Testing under PHP

#建立test the. php file, write the following code:

<?php

$mem = new Memcache;

$mem->connect (' 127.0.0.1 ', 11211);

$mem->set (' Test ', "Hello world!", 0, 60);

$val = $mem->get (' Test ');

Echo $val;

?>

Then enter the appropriate URL in the browser, if everything is OK, it will appear as follows:

~

But in the process of running this program, the browser prompts: "SELinux alert Browser". Find a reason, with selinux (in this case, the SELinux will not do a deep dive). Landlord to take the measure is simple, is to close this selinux can:

Vim/etc/sysconfig/selinux

Modify the following:

Change the selinux= enforcing to selinux=disabled.

After restarting, enter the appropriate URL in the browser to see the effect as shown!

Copyright notice: Hello, everyone!

Install memcache under CentOS