Memcached is very fast caching system for MySQL. It is a distributed, high-performance, in-memory caching system that is primarily used to speed up sites that make heavy use of databases.
Steps -
1. Firstly clean-up yum -
yum clean all
2. Update the packages -
yum -y update
3. Install memcached and it's related packages -
yum -y install memcached
yum clean all
2. Update the packages -
yum -y update
3. Install memcached and it's related packages -
yum -y install memcached
Once done with installation we can proceed with the configuration -
1. You can fire below command to check the information of memcached command -
memcached -h
memcached -h
2. Configuration file path is as follow -
/etc/sysconfig/memcached
/etc/sysconfig/memcached
Memcached will start on port 11211 by default as per the default configuration file as follow -
PORT=”11211″
USER=”memcached”
MAXCONN=”1024″
CACHESIZE=”64″
PORT=”11211″
USER=”memcached”
MAXCONN=”1024″
CACHESIZE=”64″
If you want to edit the any value in file memcached file then follow below steps -
vi /etc/sysconfig/memcached
Update the value which you'd like to update and save the configuration file.
vi /etc/sysconfig/memcached
Update the value which you'd like to update and save the configuration file.
3. Restart the memcached service -
service memcached restart
service memcached restart
4. Start the web server. For Apache web server fire below command -
service httpd restart
service httpd restart
5. Check the status of memcached -
service memcached status
service memcached status
6. Stop memcached service -
service memcached stop
service memcached stop
All done. 
