Ubuntu 12.04 php5-fpm stopped recognizing MySQL

Question

So this morning I used aptitude to install a few security updates. Seemed innocent enough until stuff stopped working. Somewhere along the way, a few packages got dropped, I guess. Now PHP (specifically PHP5-FPM) doesn't think it's connected to MySQL and I have no idea why. All packages seem to be installed. According to phpinfo():

• The php.ini file from /etc/php5/fpm.
• An additional /etc/php5/fpm/conf.d/mysql.ini file is being parsed (among others)

• The mysql.ini file includes this line:

  extension=mysql.so 

Installed PHP-related packages:

$ dpkg --get-selections | grep php libapache2-mod-php5 install php-pear install php5 install php5-cgi install php5-cli install php5-common install php5-curl install php5-dev install php5-fpm install php5-gd install php5-mcrypt install php5-memcache install php5-mysql install 

Installed MySQL packages:

$dpkg --get-selections | grep mysql libdbd-mysql-perl install libmysqlclient-dev install libmysqlclient18 install mysql-client-5.5 install mysql-client-core-5.5 install mysql-common install mysql-server install mysql-server-5.5 install mysql-server-core-5.5 install php5-mysql install 

Services status:

$ sudo service --status-all [ + ] memcached [ ? ] mysql [ ? ] network-interface [ ? ] network-interface-container [ ? ] network-interface-security [ ? ] networking [ + ] nginx [ + ] php5-fpm [ + ] ssh 

As you might expect from the services output, this is a nginx+php5-fpm+mysql install. Although status-all shows unknown, the mysql service is running (confirmed w/ ps).

Granted, I'm no sysadmin (!), but I've exhausted everything I can find or think of that would prevent the MySQL extension from being loaded. If anyone can offer any guidance I'd very much appreciate it. No doubt I'm missing something fundamental, but I'm at a loss right now for what it might be.

Thanks.

UPDATE

For whatever it might be worth, when looking at the phpinfo output, I also don't see groups for curl or gd, but do see groups for mcrypt and memcache. I'm not sure what to make of that. If I try to install php5-mysql, apt just tells me it's already installed.

Answer 1

Have you tried restarting php5-fpm? apt should restart it during the upgrade, but sometimes it gets the timing wrong.