OJS on Centos RH6

[JeanPaul]

Gentlemen,

I use CentOS x64 RHEL6 Linux on a multiCPU server (i7) and when I try to install ojs (which we need urgently) it all looks good until I log in with the admin account and I get the duplicate session ID message:

DB Error: Duplicate entry 'u14gv86c1is418pcb4kjf9ed93' for key 'sessions_pkey'. This happened after CREATING the DB and entering as the admin account specified in the installer.

This is my system info. An answer would be appreciated in order to take the decision to use another package if there is no solution for my problem. I don't have time to debug 3rd party software, so be bold to me and just tell me to go to hell if nobody wants to help me out. Been on Internet for 25 years as a developer, and I wish I'd get the same support as I give to others in my experience fields since '92. This is your chance to shine.

# php -v
PHP 5.4.3 (cli) (built: May 9 2012 17:03:20)
Copyright (c) 1997-2012 The PHP Group
Zend Engine v2.4.0, Copyright (c) 1998-2012 Zend Technologies

# mysql -V
mysql Ver 14.14 Distrib 5.5.20, for Linux (x86_64) using readline 5.1

If you need additional info, let me know. I did not install any patches (yet).

The ojs version is 2.3.7.

Thank you in advance. Please help me making the ojs functional or point me towards another ojs-like software.

Regards,

JP

[JeanPaul]

Hi,

I forgot to add:


# cat /etc/redhat-release
CentOS release 5.3 (Final)
# uname -a
Linux knowdle.com 2.6.18-128.el5 #1 SMP Wed Jan 21 10:41:14 EST 2009 x86_64 x86_64 x86_64 GNU/Linux

Furthermore I checked the specifications (which I comply) and followed the installation procedure as described in the documentation.

Thanks for any help, it is appreciated.

Cheers,

JP

[JasonNugent]

Hi JP,

Do you have session.auto_start enabled in your php.ini file? If so, try disabling it and restarting apache.

Regards,
Jason

[JeanPaul]

Hi JP,

Do you have session.auto_start enabled in your php.ini file? If so, try disabling it and restarting apache.

Regards,
Jason

Jason,

That did the trick. Thank you so much! However, now I have a new issue

When I try to logout is says:

Call to undefined function session_is_registered() in /home/......./httpdocs/lib/pkp/classes/session/Session.inc.php on line 64

Any ideas?

Thanks in advance,

JP

[JasonNugent]

Hi JP,

session_is_registered() is a standard PHP function provided by the session package with PHP versions less than 5.4. You're running 5.4, so you wouldn't have that. Can you try downgrading to 5.3?

See http://ca.php.net/manual/en/function.se ... stered.php for details.

(this is obviously something that future versions of OJS would need to address)

Regards,
Jason

[JeanPaul]

Hi Jason,

I cannot downgrade (without destroying a lot of other stuff).

Just got together with the team, CentOS gives too much issues with standard packages. Although I love RH and been using it since who knows when, I'm switching to a Ubuntu Server environment, because we simply do not have time to debug 3rd party stuff that works out of the box on any linux system, except CentOS (x64). I don't know what the CentOS team is up to, but the latest versions have been having terrible issues with upgrades and versions (PHP is a mess to name an example, having to use the remi repository to be up to date is simply for amateurs.) So after many, many years, they have lost me as a hard core user.

If I encounter any issue with the new attempt, I will let you know. You guys can close this thread. Do NOT use CentOS if you can avoid it.

Thank you so much for your support!

Regards,

JP

[asmecher]

Hi all,

I've uploaded a patch to that Bugzilla entry that should resolve the problem; if someone could test with PHP 5.4 and report back, I can see that it gets committed to the next release.

Regards,
Alec Smecher
Public Knowledge Project Team

[habibseifzadeh]

I had the same problem with the OCS. The problem appeared not only in the logout process, but also in the other parts of the program such as creating a scheduled conference.
I solved the problem by modifying two lines of the ocs-path/lib/pkp/classes/session/Session.inc.php:
line 64: if (isset($_SESSION[$key])) {
and line 65: unset($_SESSION[$key]);

hope this can help...
Habib

[asmecher]

Hi Habib,

The bugzilla entry for this is http://pkp.sfu.ca/bugzilla/show_bug.cgi?id=7544.

Regards,
Alec Smecher
Public Knowledge Project Team