Comments on: Install Memcached on Fedora 16/15, CentOS/Red Hat (RHEL) 6.2/5.7

By: Hogie

Hogie — Thu, 09 Feb 2012 21:09:46 +0000

Hey JR! Thought you could get rid of me once my nginx was setup I bet, didn’t you :) Just kidding.

If I want to have nginx and memcached on a different server, do I need to install memcached on both servers for them to talk properly? I am currently setting my virtual host on nginx to send items to memcached on a proxy server, and if it fails to launch php on the live server. – http://pastebin.com/zZ3VAePi

I am receiving a 404 like this, but if i switch it back to just php it works fine. Is that virtual host correct? Am I receiving the 404 because the memcached server is not working properly?

By: JR

JR — Wed, 08 Feb 2012 10:47:49 +0000

Hi Santi Saez,

Thanks for sharing.

I have to admit that I am not yet convinced quality of this repository. Then I believe this, when the repo has been in existence for a year or two and have still actively updated packages… ;)

By: Santi Saez

Santi Saez — Tue, 07 Feb 2012 14:11:42 +0000

Actually EPEL for RHEL installs and outdated version of memcached (1.4.5, released 2 years ago), I suggest using at least memcached 1.4.10. Starting this release there is a big performance and scalability improvements, see developer notes.

Using PowerStack repository you can easily run latest memcached stable version in your CentOS boxes (4, 5 and 6 releases supported, i686 + x86_64), last LAMP stack stable versions and other key packages like: nginx, HAproxy, node.js, redis, Varnish, etc.

All code + .spec files are available on GitHub, check out the wiki page for installation instructions:

http://powerstack.org

By: JR

JR — Sat, 14 Jan 2012 09:21:15 +0000

Hi Phoenix,

Nice to see you here!

Could you post output of following command:

rpm -qa memcached

Thanks.

By: Phoenix

Phoenix — Sat, 14 Jan 2012 06:07:19 +0000

Hi. Loved this very clear instruction.

I already have Memcached 1.2.0 installed:

> memcached -h memcached 1.2.0 -p port number to listen on -s unix socket path to listen on (disables network support) ....

I have the usual CentOS Base, EPEL, and even the REMI repositories installed now.

> yum repolist Loaded plugins: fastestmirror, priorities Loading mirror speeds from cached hostfile * epel: fedora-epel.mirror.lstn.net * remi: rpms.famillecollet.com repo id repo name status addons CentOS-5 - Addons enabled : 0 base CentOS-5 - Base enabled : 3,566 centosplus CentOS-5 - Plus enabled : 57 contrib CentOS-5 - Contrib enabled : 0 epel Extra Packages for Enterprise Linux 5 - enabled : 6,851 extras CentOS-5 - Extras enabled : 266 remi Les RPM de remi pour Enterprise Linux 5 enabled : 641 updates CentOS-5 - Updates enabled : 569 repolist: 11,950

But when I do a:

yum --enablerepo=remi update memcached

It somehow updates it to “1.4.5″. So I restart memcached with “service memcached restart”.

> service memcached restart Stopping memcached: [FAILED] Starting memcached: [ OK ]

Then when I do “memcached -h” again, I still see 1.2.0.

What am I missing?

Thanks.

By: JR

JR — Tue, 05 Apr 2011 05:36:07 +0000

Hi HaYsSeN,

If you want to install class Memcached then you need to install php-pecl-memcached package too:

yum install php-pecl-memcached

I added this to guide too.

By: HaYsSeN

HaYsSeN — Mon, 04 Apr 2011 11:03:48 +0000

Hi Jeff,
Thanks a lot, the installation is done, class Memcache work fine but the class Memcached is not working, i get the message : Fatal error: Class ‘Memcached’ not found !
have you any idea about that

By: JR

JR — Fri, 18 Mar 2011 07:55:18 +0000

Hi onel0ve,

It seems that the problem is caused by rpmforge repo packages.

Could you first post output of following command:

yum repolist

By: onel0ve

onel0ve — Fri, 11 Mar 2011 17:01:40 +0000

cant installl
—> Package perl-common-sense.i386 0:3.0-1.el5.rf set to be updated
–> Finished Dependency Resolution
perl-AnyEvent-5.240-1.el5.rf.noarch from rpmforge has depsolving problems
–> Missing Dependency: perl(Net::SSLeay) >= 1.33 is needed by package perl-AnyEvent-5.240-1.el5.rf.noarch (rpmforge)
Error: Missing Dependency: perl(Net::SSLeay) >= 1.33 is needed by package perl-AnyEvent-5.240-1.el5.rf.noarch (rpmforge)
You could try using –skip-broken to work around the problem
You could try running: package-cleanup –problems
package-cleanup –dupes
rpm -Va –nofiles –nodigest

By: arod

arod — Sat, 05 Mar 2011 05:22:40 +0000

Thanks!

By: JR

JR — Thu, 24 Feb 2011 08:13:07 +0000

Hi jeff,

For me it’s working normally…maybe it was down when you try to install it. So please try again.

By: jeff

jeff — Tue, 22 Feb 2011 16:53:39 +0000

no response from: rpm -Uvh http://rpms.famillecollet.com/enterprise/remi-release-5.rpm

site appears to be dead

By: JR

JR — Mon, 10 Jan 2011 07:32:08 +0000

Of course, it depends on the intended use and the fact that whatever else the server is running, but maybe about 64-192 MB is good for memcached.

By: JOGLOHosting

JOGLOHosting — Sat, 08 Jan 2011 15:26:27 +0000

Hi,
thank for this nice tutorial for installing memcached, i’d to know what the best memory size for memcached on vps with 512MB of ram?

By: jvc

jvc — Sun, 26 Sep 2010 04:17:07 +0000

Nice site…and nice work ..
Keep up…..

By: JR

JR — Tue, 01 Jun 2010 05:51:14 +0000

Hi Charles,

I verified again that the this guide is working also with Fedora 13.

If you want install Memcache PHP module then you need to install following package:

yum install php-pecl-memcache

Then you get /usr/lib/php/modules/memcache.so file right place.

I added this also on end of this guide. :)

By: CharlesHSauer

CharlesHSauer — Tue, 01 Jun 2010 00:38:34 +0000

The above instructions work fine for me with Fedora 12. Fedora 13 wasn’t working. /usr/lib/php/modules/memcache.so was missing. Copying that file from Fedora 12 installation seems to work, but I wonder why it was missing. rpm -ql memcached doesn’t show memcache.so.