How to Install Memcached on CentOS 7

How to Install Memcached on CentOS 7?

Installing the Memcached database in the Linux system is a very important skill to master. In general, it is the Linux Redhat red hat or the Memcached on Centos.

Introduction

Memcached is a distributed high performance memory cache system, which belongs to the Nosql database, which is mainly used to solve the pressure caused by frequent access to the database, but it can be used to store any type of object. Almost all popular CMS has a plug-in or module to use memcached, and many programming languages have a memcached Library, including PHP, Perl, Ruby and Python, Memcached runs in memory. It does not need to write data to disk, so it is very fast.

Step #1 Install Memcached, Use the yum command

First, clean-up yum:

1. yum clean all

update our packages:

1. yum -y update

yum install Memcached :

1. yum -y install memcached

Step #2: Configuration of the Memcached Installation

Use the following command to view information on the memcached command:

1. memcached -h

Edit the memcached configuration information with the VIM command:

1. vim /etc/sysconfig/memcached 

The VIM command enters the edit state and displays the following information. We can change the default configuration:
PORT=”11211″    #default port
USER=”memcached”    #default user
MAXCONN=”1024″    #default Maxconn
CACHESIZE=”64″    #default CacheSize(MB)
OPTIONS=””

save change and exit:

1. :wq!

Step #3: start/stop/restart Memcached command:

1. systemctl start memcached
2. systemctl stop memcached
3. systemctl restart memcached

Check the memcached status:

1. systemctl status memcached

Set the Memcached starts at boot:

1. systemctl enable memcached

complete!