How to install memcached in WHM/Cpanel version 2

This tutorial is originally comes from : http://wiki.beyondhosting.net/Memcached_and_PHP_with_cPanel
I make it as some notes for me, just in case I forgot it, I can reopen this tutorial.
 
Installing required packages
Installing memcached and required library using YUM :

# yum install libevent libevent-devel gcc make -y

 
Download and install memcached from source
Open the memcache official website, and download the latest version.

# wget http://memcached.googlecode.com/files/memcached-1.4.5.tar.gz
# tar xvf memcached-1.4.5.tar.gz
# cd memcached-1.4.5
# ./configure && make && make install

 
Install memcached configuration
Use your favourite editor, and open the /etc/memcache.conf, type the following :

# Memory a usar
-m 16
# Default port
-p 11211
# User to run Daemon nobody/www-data/apache
-u nobody
# Only listen locally
-l 127.0.0.1

Or you can download it here.
( At some case, we have to type it using shell, and when we type it in Microsoft Windows, and upload it to the server, it will be error/unreadable. So instead of typing, I’m uploading this file so you can download and upload it to your server.)
 
Install initiation script:

# touch /etc/init.d/memcached
# chmod +x /etc/init.d/memcached

Open the /etc/init.d/memcached using your favourite editor, and type in :

#!/bin/bash
#
# memcached This shell script takes care of starting and stopping
# standalone memcached.
#
# chkconfig: – 80 12
# description: memcached is a high-performance, distributed memory
# object caching system, generic in nature, but
# intended for use in speeding up dynamic web
# applications by alleviating database load.
# Kita memerlukan comment ini untuk menjalankan chkconfig
# processname: memcached
# config: /etc/memcached.conf
# Source function library.
. /etc/rc.d/init.d/functions
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
DAEMON=/usr/local/bin/memcached
DAEMONBOOTSTRAP=/usr/local/bin/start-memcached
DAEMONCONF=/etc/memcached.conf
NAME=memcached
DESC=memcached
PIDFILE=/var/run/$NAME.pid
[ -x $DAEMON ] || exit 0
[ -x $DAEMONBOOTSTRAP ] || exit 0
RETVAL=0
start() {
echo -n $”Starting $DESC: ”
daemon $DAEMONBOOTSTRAP $DAEMONCONF
RETVAL=$?
[ $RETVAL -eq 0 ] && touch $PIDFILE
echo
return $RETVAL
}
stop() {
echo -n $”Shutting down $DESC: ”
killproc $NAME
RETVAL=$?
echo
[ $RETVAL -eq 0 ] && rm -f $PIDFILE
return $RETVAL
}
# See how we were called.
case “$1″ in
start)
start
;;
stop)
stop
;;
restart|reload)
stop
start
RETVAL=$?
;;
status)
status $prog
RETVAL=$?
;;
*)
echo $”Usage: $0 {start|stop|restart|status}”
exit 1
esac
exit $RETVAL

Or you can download it here
 
Install memcache monitoring script
Create the start-memcache script

# touch /usr/local/bin/start-memcached
# chmod +x /usr/local/bin/start-memcached

Open the /usr/local/bin/start-memcached with your favourite editor and type in :

#!/usr/bin/perl -w
# start-memcached
# 2003/2004 – Jay Bonci <jaybonci@debian.org>
# This script handles the parsing of the /etc/memcached.conf file
# and was originally created for the Debian distribution.
# Anyone may use this little script under the same terms as
# memcached itself.
use strict;
if ($> != 0 and $< != 0) {
print STDERR “Only root wants to run start-memcached.n”;
exit;
}
my $etcfile = shift || “/etc/memcached.conf”;
my $params = [];
my $etchandle;
# This script assumes that memcached is located at /usr/bin/memcached, and
# that the pidfile is writable at /var/run/memcached.pid
my $memcached = “/usr/local/bin/memcached”;
my $pidfile = “/var/run/memcached.pid”;
# If we don’t get a valid logfile parameter in the /etc/memcached.conf file,
# we’ll just throw away all of our in-daemon output. We need to re-tie it so
# that non-bash shells will not hang on logout. Thanks to Michael Renner for
# the tip
my $fd_reopened = “/dev/null”;
sub handle_logfile {
my ($logfile) = @_;
$fd_reopened = $logfile;
}
sub reopen_logfile {
my ($logfile) = @_;
open *STDERR, “>>$logfile”;
open *STDOUT, “>>$logfile”;
open *STDIN, “>>/dev/null”;
$fd_reopened = $logfile;
}
# This is set up in place here to support other non -[a-z] directives
my $conf_directives = {
“logfile” => &handle_logfile
};
if (open $etchandle, $etcfile) {
foreach my $line (<$etchandle>) {
$line =~ s/#.*//go;
$line = join ‘ ‘, split ‘ ‘, $line;
next unless $line;
next if $line =~ /^-[dh]/o;
if ($line =~ /^[^-]/o) {
my ($directive, $arg) = $line =~ /^(.*?)s+(.*)/;
$conf_directives->{$directive}->($arg);
next;
}
push @$params, $line;
}
}
unshift @$params, “-u root” unless (grep $_ eq ‘-u’, @$params);
$params = join ” “, @$params;
if (-e $pidfile) {
open PIDHANDLE, “$pidfile”;
my $localpid = <PIDHANDLE>;
close PIDHANDLE;
chomp $localpid;
if (-d “/proc/$localpid”) {
print STDERR “memcached is already running.n”;
exit;
} else {
rm -f $localpid;
}
}
my $pid = fork();
if ($pid == 0) {
reopen_logfile($fd_reopened);
exec “$memcached $params”;
exit(0);
} elsif (open PIDHANDLE,”>$pidfile”) {
print PIDHANDLE $pid;
close PIDHANDLE;
} else {
print STDERR “Can’t write pidfile to $pidfile.n”;
}
 

Or you can download it here.
Lets start the memcached Daemon
Now we will start the memcache Daemon, sometimes it’s okay if it says FAILED

# /etc/init.d/memcached restart
# Shutting down memcached:  [ OK ]
# Starting memcached: [ OK]

 
Make sure it’s running :

# ps aux | grep memcache
#nobody 5966 0.5 0.3 18248 16444 pts/0 S 13:55 0:00 /usr/local/bin/memcached -u root -m 16 -p 11211 -u nobody -l 127.0.0.1

Set memcached to run at startup using chkconfig:

# /sbin/chkconfig memcached on
or
# chkconfig memcached on

 
PHP Memcache extension
Next we have to download the latest stable memcache from the official website :

# wget http://pecl.php.net//get/memcache-3.0.5.tgz
# tar xvf memcache-3.0.5.tgz
# cd memcache-3.0.5
# phpize
# ./configure && make && make install

 
Searching the php configuration file

Create a phpinfo.php file using your favourite editor :

# cd ~
# nano phpinfo.php
<? phpinfo(); ?>^o
^x
#php -f phpinfo.php | grep “Loaded Configuration File”
# Loaded configuration file => /usr/local/lib/php.ini

Now we have the location of the php.ini, then open it using your favourite text editor . Find the “Dynamic Extension” section, and add this :

extension=memcache.so

Usually there is a group of extension line, add it before the zend or another extension.
 
Restarting the Apache
To start your new memcache configuration, restart the apache
# service httpd restart
 
Testing the added memcache extension

#php -f phpinfo.php | grep “memcache support”

If the result is like this : memcache support => enabled. Then the installation is succeed.