How to Install Memcached on Ubuntu 12.04 LTS
Memcached is a distributed, high-performance, in-memory caching system that is primarily used to speed up sites that make heavy use of databases. It can however be used to store objects of any kind. Nearly every popular CMS has a plugin or module to take advantage of memcached, and many programming languages have a memcached library, including PHP, Perl, Ruby, and Python. Memcached runs in memory and is thus quite speedy, since it does not need to write data to disk.
- These instructions are intended specifically for installing Memcached on a single Ubuntu 12.04 LTS node.
- I’ll be working from a Liquid Web Core Managed Ubuntu 12.04 LTS server, and I’ll be logged in as root.
As a matter of best practice we’ll update our packages:
apt-get update
Then installing Memcached and related packages is now as simple as running just one command::
apt-get install memcached
Use the following command to view information on the memcached command:
memcached -h
The default configuration file can be found at:
/etc/memcached.conf
When started, Memcached will start on port 11211 by default per the default configuration file:
# Default connection port is 11211
-p 11211
To change the port, simply change the number in the configuration file.
For a refresher on editing files with vim see: New User Tutorial: Overview of the Vim Text Editor
EXAMPLE: If I wanted to run Memcached on port 1337, with 4GB of memory, and allow a maximum of 2,000 connections, I would change the config file as follows.
Let’s edit the configuration file:
vim /etc/memcached.conf
To the following:
-p 1337
-m 4096
-c 2000
Exit and save the configuration file, and then restart Memcached
service memcached restart
Related Articles:
About the Author: J. Mays
Our Sales and Support teams are available 24 hours by phone or e-mail to assist.
Latest Articles
How to Edit Your DNS Hosts File
Read ArticleHow to Edit Your DNS Hosts File
Read ArticleMicrosoft Exchange Server Security Update
Read ArticleHow to Monitor Your Server in WHM
Read ArticleHow to Monitor Your Server in WHM
Read Article