Please help with memcached install starting to go pear shaped

[stardotstar]

Hi all,

I have been following numerous links around the forums and web on how to install memcached on a centos 5 cpanel server and come to grief in a couple of places now and decided to stop before I got too deep and broke stuff...

Summary:

I attempted to follow a process where an rpmforge repo was added and then the rpm for memcached was pulled in and built

[email protected] [/home/arcplane/www/forums/includes]# rpm -Uhv http://apt.sw.be/redhat/el5/en/i386/rpmforge/RPMS/rpmforge-release-0.3.6-1.el5.rf.i386.rpm
Retrieving http://apt.sw.be/redhat/el5/en/i386/rpmforge/RPMS/rpmforge-release-0.3.6-1.el5.rf.i386.rpm
warning: /var/tmp/rpm-xfer.IdLAYM: Header V3 DSA signature: NOKEY, key ID 6b8d79e6
Preparing...                ########################################### [100%]
   1:rpmforge-release       ########################################### [100%]

Then I tried to pull in the memcached rpm

[email protected] [/home/arcplane/www/forums/includes]# yum -y install memcached
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * addons: ftp.swin.edu.au
 * base: ftp.swin.edu.au
 * extras: ftp.swin.edu.au
 * rpmforge: apt.sw.be
 * updates: ftp.swin.edu.au
addons                                                                                        |  951 B     00:00     
base                                                                                          | 2.1 kB     00:00     
base/primary_db                                                                               | 1.6 MB     00:00     
extras                                                                                        | 2.1 kB     00:00     
rpmforge                                                                                      | 1.1 kB     00:00     
rpmforge/primary                                                                              | 3.8 MB     00:07     
rpmforge                                                                                                 10495/10495
updates                                                                                       | 1.9 kB     00:00     
virtualbox                                                                                    |  951 B     00:00     
Excluding Packages in global exclude list
Finished
Setting up Install Process
Resolving Dependencies
There are unfinished transactions remaining. You might consider running yum-complete-transaction first to finish them.
The program yum-complete-transaction is found in the yum-utils package.
--> Running transaction check
---> Package memcached.i386 0:1.4.5-1.el5.rf set to be updated
--> Processing Dependency: perl(AnyEvent) for package: memcached
--> Processing Dependency: perl(AnyEvent::Socket) for package: memcached
--> Processing Dependency: perl(AnyEvent::Handle) for package: memcached
--> Processing Dependency: libevent-1.1a.so.1 for package: memcached
--> Processing Dependency: perl(YAML) for package: memcached
--> Processing Dependency: perl(Term::ReadKey) for package: memcached
--> Running transaction check
---> Package compat-libevent-11a.i386 0:3.2.1-1.el5.rf set to be updated
---> Package memcached.i386 0:1.4.5-1.el5.rf set to be updated
--> Processing Dependency: perl(AnyEvent) for package: memcached
--> Processing Dependency: perl(AnyEvent::Socket) for package: memcached
--> Processing Dependency: perl(AnyEvent::Handle) for package: memcached
--> Processing Dependency: perl(YAML) for package: memcached
--> Processing Dependency: perl(Term::ReadKey) for package: memcached
--> Finished Dependency Resolution
memcached-1.4.5-1.el5.rf.i386 from rpmforge has depsolving problems
  --> Missing Dependency: perl(YAML) is needed by package memcached-1.4.5-1.el5.rf.i386 (rpmforge)
memcached-1.4.5-1.el5.rf.i386 from rpmforge has depsolving problems
  --> Missing Dependency: perl(Term::ReadKey) is needed by package memcached-1.4.5-1.el5.rf.i386 (rpmforge)
memcached-1.4.5-1.el5.rf.i386 from rpmforge has depsolving problems
  --> Missing Dependency: perl(AnyEvent::Socket) is needed by package memcached-1.4.5-1.el5.rf.i386 (rpmforge)
memcached-1.4.5-1.el5.rf.i386 from rpmforge has depsolving problems
  --> Missing Dependency: perl(AnyEvent::Handle) is needed by package memcached-1.4.5-1.el5.rf.i386 (rpmforge)
memcached-1.4.5-1.el5.rf.i386 from rpmforge has depsolving problems
  --> Missing Dependency: perl(AnyEvent) is needed by package memcached-1.4.5-1.el5.rf.i386 (rpmforge)
Error: Missing Dependency: perl(Term::ReadKey) is needed by package memcached-1.4.5-1.el5.rf.i386 (rpmforge)
Error: Missing Dependency: perl(AnyEvent) is needed by package memcached-1.4.5-1.el5.rf.i386 (rpmforge)
Error: Missing Dependency: perl(YAML) is needed by package memcached-1.4.5-1.el5.rf.i386 (rpmforge)
Error: Missing Dependency: perl(AnyEvent::Handle) is needed by package memcached-1.4.5-1.el5.rf.i386 (rpmforge)
Error: Missing Dependency: perl(AnyEvent::Socket) is needed by package memcached-1.4.5-1.el5.rf.i386 (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
The program package-cleanup is found in the yum-utils package.

This then led me to try and find the perl(YAML) rpm which was unavailable and likely part of a repo that I don't have enabled.

I am not very familiar yet with difficult dependency resolution as my background has been with apt and emerge and yum/rpm are still a bit foreign.

I then added the yum-utils package and tried the package-cleanup and after running it found the following problems (?)

[email protected] [/home/arcplane/www/forums/includes]# yum -y install yum-utils
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * addons: ftp.swin.edu.au
 * base: ftp.swin.edu.au
 * extras: ftp.swin.edu.au
 * rpmforge: ftp-stud.fht-esslingen.de
 * updates: ftp.swin.edu.au
Excluding Packages in global exclude list
Finished
Setting up Install Process
Resolving Dependencies
There are unfinished transactions remaining. You might consider running yum-complete-transaction first to finish them.
The program yum-complete-transaction is found in the yum-utils package.
--> Running transaction check
---> Package yum-utils.noarch 0:1.1.16-14.el5.centos.1 set to be updated
--> Finished Dependency Resolution

Dependencies Resolved

=====================================================================================================================
 Package                   Arch                   Version                                 Repository            Size
=====================================================================================================================
Installing:
 yum-utils                 noarch                 1.1.16-14.el5.centos.1                  base                  69 k

Transaction Summary
=====================================================================================================================
Install       1 Package(s)
Upgrade       0 Package(s)

Total download size: 69 k
Downloading Packages:
yum-utils-1.1.16-14.el5.centos.1.noarch.rpm                                                   |  69 kB     00:00     
Running rpm_check_debug
Running Transaction Test
Finished Transaction Test
Transaction Test Succeeded
Running Transaction
  Installing     : yum-utils                                                                                     1/1 

Installed:
  yum-utils.noarch 0:1.1.16-14.el5.centos.1                                                                          

Complete!
[email protected] [/home/arcplane/www/forums/includes]# package-cleanup --problems
Setting up yum
Reading local RPM database
Processing all local requires
Missing dependencies:
Package MySQL-server requires perl(DBI)
Package MySQL-client requires perl(DBI)
Package exim requires libresolv.so.2(GLIBC_PRIVATE)
Package exim requires perl(SafeFile)
Package bandmin requires perl(bandmin.conf)
Package bandmin requires perl(bmversion.pl)
Package bandmin requires perl(services.conf)

I tried some things to start building manually and got a version of it running manually.

The problem is that I really want to avoid the manual source built approach for my system and given that I will have to do an easy-apache rebuild next I am nervous about versions and so forth.

Could someone enlightened in these things please give me a helping hand before I tinker with something that will cause me grief?

Best regards,
Will

 

[stardotstar]

Anyone please? I have completed a multi domain server move and need memcached running for three new domains. I am at a loss as to how to resolve the above dependencies and/or resort to manual implementation...

 

[syslint]

Hello,

There are two module that need for complete working of memcached ,

- The memcached server , and
- The php-pecl-memcache module

Along with this , your php application must support memcached too . I have two documents for configuring memcached in VB and openx server . Please see it below,


Memcached for vbulletin
Memchached for Openx

Let me know this will help you or not.

 

[stardotstar]

Thank you very much for your articles - I will study and report back!

 

[stardotstar]

Hi Mastersherin,

I will be trying to follow your memcached install instructions today and yet wonder if I need to do the apache bit with easy-apache - I am aware that with a cP server I can do much on the backend manually but also that it is encouraged to do things the "cPanel way" and don't want to break anything by manually interfearing with a critical production service that I should work on with the cPanel tools.

From my looking at my aborted attempt above it seems that I am on the right track trying to install memcached manually from the terminal and that solving the deps is a matter of finding the right rpms etc.

I will attempt this today. I look forward to any other comment you may be able to make to assist me in the apache side of things.

WIll

 

[stardotstar]

OK, I got it all working ...

Thanks to Mastersherin for the invaluable information on installing and configuring the system.

I did have to google and ensure that the

extension=memcache.so

was added to the global php.ini (even though I had checked the box in the easy-apache config php section)

I have also enabled and added various other optimizations that Sherin has recommended and am working on getting the most out of my vBs and OpenX on the new server.

Thanks for the help

Final thing:

how do I get the memcached daemon to "start" provided by Sherin as per the init.d script in Centos5 so that after reboot the system will have memcahce available>

Ie do I have to add it to the startup/boot daemons and how is that done in centos 5 - I used rc-update in gentoo...

Thanks very much!
Will

 

[johnburk]

@mastersherin

Thank you! Your info was very useful