Comments on: Alternative PHP Cache (APC) on Debian

By: meinhard

meinhard — Sat, 29 Mar 2008 14:03:49 +0000

To install APC on a minimal Ubuntu Gutsy (7.10) I just typed:

apt-get install php-pear php5-dev gawk apache2-threaded-dev make pecl install apc

..added “extension=apc.so” to the php.ini and restarted Apache - done! Also see http://2bits.com/articles/installing-php-apc-gnulinux-ubuntu-gutsy-gibbon-710-and-debian.html

By: :DTM.

:DTM. — Tue, 29 Jan 2008 04:20:19 +0000

Everything had been worked perfectly with APC and eZ Publish on my Debian Etch amd64 until I issued:
pecl upgrade apc

which upgraded to APC-3.0.16 and created a new library in
/usr/lib/php5/20060613/apc.so

which replaced the previous
/usr/lib/php4/20050606/apc.so [APC-3.0.14 - shoot, I don't have a backup...]

The problem must be that I installed php5 [cgi] after php4 and apc…

If I move the new apc.so to the correct extension_dir, Apache2 can’t load it and says:

PHP Warning: Unknown(): Unable to load dynamic library ‘/usr/lib/php4/20050606/apc.so’ - /usr/lib/php4/20050606/apc.so: undefined symbol: zend_opcode_handlers in Unknown on line 0

How can I recompile apc for just PHP/4.4.4-8+etch4 and give eZ Publish a cache again?

Regards, :DTM.

By: matthew

matthew — Tue, 06 Nov 2007 22:10:27 +0000

@marwin: you must be using non-standard repositories, because there is no php5-apc package in debian yet. There is an ITP, which followed a RFP I filed two years ago, but no package as yet.

By: marwin

marwin — Fri, 13 Jul 2007 06:57:55 +0000

Well I have enabled the APC on my debian box by simply doing
(installation of apache)
apt-get install libapache2-mod-php5

(installation of php5)
apt-get install php5-curl php5-gd php5-imap php5-mysql php5-mcrypt php5-xmlrpc php5-xsl php5-cli php5 php5-tidy php5-apc

/etc/init.d/apache2 restart

I hope this is usefull to somebody.

By: matthew

matthew — Sat, 16 Jun 2007 20:14:59 +0000

@Matt: you do need to install the apache and php development packages - for apache2 the relevant package is apache2-dev

@Mentalacrobatics: If you don’t have apt-get, then you don’t have Debian Linux, and this page is irrelevant to you. You should search for an APC package for whichever distribution you are running. Alternatively, if you need help compiling it from source, contact me.

Matthew

By: Mentalacrobatics

Mentalacrobatics — Wed, 23 May 2007 10:51:54 +0000

Hi, Thanks for posting this. I tried to follow the instructions and got as far as

root@vps [/usr/local/src]# sudo apt-get install apache-dev php4-dev sudo: apt-get: command not found

any ideas how i can get around this please?

Thank you

By: Matt West

Matt West — Sun, 18 Mar 2007 22:30:48 +0000

Just for update.
I just tried the sudo apt-get install apache-dev php4-dev line, and it said, apt-get: command not found :/

Sorry for the multiple comments!

By: Matt West

Matt West — Sun, 18 Mar 2007 21:44:00 +0000

Oh, sorry I should have mentioned, I did not do this line “sudo apt-get install apache-dev php4-dev”. I was not sure if I needed to do this as I have apache2 and php installed. I didn;t want to mess with this part.

Thanks again

By: Matt West

Matt West — Sun, 18 Mar 2007 21:26:10 +0000

Hey Matthew,

I have tried for roughly four days now to get APC working, and it is driving me crazy. Im on a mediatmple virtual dedicated (cent os) with the developer tools installed.
I have managed to get it built, the apc.so file is in the correct place, but still no luck. When the apc.so file is loaded, it shows an error with it in my apache log.
I think I have tracked it down to a problem with phpize. When i type phpize, I recive this error.

[root@as APC-3.0.13]# phpize
configure.in:9: warning: underquoted definition of PHP_WITH_PHP_CONFIG
run info ‘(automake)Extending aclocal’
or see http://sources.redhat.com/automake/automake.html#Extending-aclocal
configure.in:32: warning: underquoted definition of PHP_EXT_BUILDDIR
configure.in:33: warning: underquoted definition of PHP_EXT_DIR
configure.in:34: warning: underquoted definition of PHP_EXT_SRCDIR
configure.in:35: warning: underquoted definition of PHP_ALWAYS_SHARED
acinclude.m4:19: warning: underquoted definition of PHP_PROG_RE2C
/usr/share/aclocal/libgcrypt.m4:23: warning: underquoted definition of AM_PATH_LIBGCRYPT
Configuring for:
PHP Api Version: 20020918
Zend Module Api No: 20020429
Zend Extension Api No: 20021010

I think it might be libtools or libcrypt. Any idea how I can fix this? You are my last hope :/

Many thanks for the time Matthew.
Matt

By: fora

fora — Tue, 06 Feb 2007 21:40:18 +0000

Hello, thanks for this great post.
I have never heard of php cache, except mysql query cache supposed to be great aswell for systems doing the same query very fast after one another.