Access to Memory (AtoM)

Reported by multiple users in the user forum.

• https://groups.google.com/d/topic/ica-atom-users/L3jB7FQMaN8/discussion
• https://groups.google.com/d/topic/ica-atom-users/rLLUejoeoIM/discussion

Error encountered

Most users are encountering a 500 error via PDO, that looks something like this:

2015/07/13 13:55:46 [error] 755#0: *8 FastCGI sent in stderr: "PHP message: Unable to open PDO connection [wrapped: SQLSTATE[28000] [1045] Access denied for user 'root'@'localhost' (using password: NO)]" while reading response header from upstream, client: 192.168.100.99, server: _, request: "GET / HTTP/1.1", upstream: "fastcgi://unix:/var/run/php5-fpm.atom.sock:", host: "192.168.100.101" 

A workaround has been reported by another user (https://groups.google.com/d/msg/ica-atom-users/L3jB7FQMaN8/emSoKf9ISp4J)

I'm using Ubuntu 14.04 x32, Ubuntu 14.04 x64, Windows8 x64 and so far, this is what I tried and seemed to have worked: 

Workaround in Ubuntu:
After following AtoM's instructions you will get a 505 error. As said in this thread just rename or remove  /usr/share/nginx/atom/config/config.php. Now it will appear another error (Unable to open PDO connection [wrapped: SQLSTATE[28000] [1045] Access denied), so on Terminal type:

sudo su
sudo chown -R www-data:www-data /usr/share/nginx/atom/uploads
sudo service php5-fpm restart

Workaround in Windows:
In version 2.1.2 if you placed AtoM's files directly in WAMP's WWW folder or the original AtoM's folder without modifying its name (e.g. <atom-2.1.2>) you just had to type "localhost" in browser to start it. However if you place Atom's folder with another name (e.g. just <atom>) it would give a 505 error.

Now in 2.2.0 version, no matter how files or folders are placed in WAMP's WWW folder you will get a 505 error, so all you have to do is paste http://localhost/<foldername_ifexists>/index.php/sfInstallPlugin/Checksystem in your browser to start installing Atom.

Another user reported a theory as to the source of the issue (https://groups.google.com/d/msg/ica-atom-users/L3jB7FQMaN8/ca7NIyLix2IJ):

I think that there is some problem in getvalues on plugins/sfInstallPlugin. Because, I did some testing and the form Database configuration isn't sending the values.
In first time, I didn't change the standard values (database: atom, username: root) and I typed my password only. It doesn't work!
So, I tried to use other the username.

...

I restarted the service php5-fpm in Database Configuration form and the installation worked. 
I'm using AtoM in Ubuntu/Linux and I used the command XXXXX@XXXX:~$ sudo restart php5-fpm  to restart.

Expected result

Users can upgrade without receiving 500 errors. Database password set up during creation of new DB should be respected by the rest of the import process.

Notes

This, along with the ES issue for which Mike C has made a patch (outlined in #8744), may require a 2.2.1 release, depending on the cause once we have investigated. As dicussed in internal AtoM meeting, assigning to David J for investigation upon his return.