Install memcached in CentOS

Install memcached in CentOS

Installing memcached in centos is simple. You only need to use the dependency management tool that comes with centos. However, you can also use the compilation method to install memcached.

1. Server memcached

Next I will use yum to install memcached:

[root@localhost ~]# yum install memcached

Select y

Very easy! The installation is complete!

Let's start memcached!

[root@localhost ~]# /usr/bin/memcached -d -l 127.0.0.1 -p 11211 -m 150 -u root

-D: daemon. When exiting from the terminal window, memcached will continue to run-l: Specify the ip address. Here we specify the local ip address-p: Specify the port number, and the port number is 11211-m: allocate memory, here I allocated a M memory-u: which user is used to run memcached

So how can we check whether our memcached is started! The following is a command:

[root@localhost ~]# ps -ef | grep memcached

Ps command is the abbreviation of Precess Status, that is, to list the processes running in the current system ps-ef is to display all processes, together with the command line ps is usually used in combination with grep to find specific processes

2. Client memcache

2.1 install libmemcached 2.1.1 download libmemcached

[root@localhost ~]# wget https://launchpad.net/libmemcached/1.0/1.0.18/+download/libmemcached-1.0.18.tar.gz

2.1.2 download memcached

[root@localhost ~]# wget http://pecl.php.net/get/memcached-2.2.0.tgz

Note! The php extension is downloaded here. Do not download memcached. After decompression, check whether there are php _ files in the folder.

2.1.3 decompress libmemcached

[root@localhost ~]# tar -zxvf libmemcached-1.0.8.tar.gz

Here is the use of the compilation and Installation Method: Enter the libmemcached-1.0.8 directory, compile

[root@localhost ~]# ./configure --prefix=/usr/lib/libmemcached

Specify to compile to the/usr/lib/libmemcached directory

Install

[root@localhost libmemcached-1.0.8]# make && make install

Wait for a while and the installation is complete!

2.2 install memcached extension for PHP 2.2.1 decompress memcached

[root@localhost ~]# tar -zxvf memcached-2.2.0.tar.gz

Enter this folder and run

[root@localhost ~]# cd memcached-2.2.0[root@localhost memcached-2.2.0]# phpize

At this time, an extra configure file will be executed:

[root@localhost memcached-2.2.0]# ./configure

The following error occurs: configure: error: Cannot find php-config. please use-with-php-config = PATH indicates that the PATH "My php-config" is not found. Therefore, we need to specify our PATH. here we need to determine where your php is installed.

My php-config is re-executed in the memcached folder under/usr/local/php/bin:

[root@localhost memcached-2.2.0]# ./configure --with-php-config=/usr/local/php/bin/php-config

Fuck, and an error is reported again. Configure: error: memcached support requires libmemcached. use-with-libmemcached-dir = DIR to specify the prefix where libmemcached headers and library are located. We didn't find the libmemcached extension we just installed. Because we just had./configure-prefix =/usr/bin/lib/libmemcached, our libmemcached extension is here. Run the following command:

[root@localhost memcached-2.2.0]# ./configure --with-php-config=/usr/local/php/bin/php-config --with-libmemcached-dir=/usr/lib/libmemcached

Nima !! Another error is reported: error: no, sasl. h is not available. Run configure with-disable-memcached-sasl to disable this check. Follow the instructions and then execute:

[root@localhost memcached-2.2.0]# ./configure --with-php-config=/usr/local/php/bin/php-config --with-libmemcached-dir=/usr/lib/libmemcached --disable-memcached-sasl

Finally succeeded!2.2.2 installation Extension

[root@localhost memcached-2.2.0]# make && make install

The following describes how to configure php. ini and add the memcached extension.

[root@localhost ~]# vim /usr/local/php/etc/php.ini

Press shift + g to jump to the last line and insert: extension = memcached. so save and restart my lnmp:[root@localhost ~]# lnmp restartCheck out my php extensions:[root@localhost ~]# php -mCheck whether memcached extensions are available:[root@localhost ~]# php -m | grep memcached

Now php has successfully configured memcached!