I was working on a CakePHP application that was deployed on a Debian machine when I met this error. Bit of googling told me this error is more common to any app using php on a Debian/Ubuntu machine. So here goes..
Problem
If you are seeing this error:
session_start() [function.session-start]: ps_files_cleanup_dir: opendir(/var/lib/php5) failed: Permission denied (13) [CORE/Cake/Model/Datasource/CakeSession.php, line 605] |
detailed error:
Notice (8): session_start() [function.session-start]: ps_files_cleanup_dir: opendir(/var/lib/php5) failed: Permission denied (13) [CORE/Cake/Model/Datasource/CakeSession.php, line 605]
Code
session_start - [internal], line ??
CakeSession::_startSession() - CORE/Cake/Model/Datasource/CakeSession.php, line 605
CakeSession::start() - CORE/Cake/Model/Datasource/CakeSession.php, line 187
CakeSession::check() - CORE/Cake/Model/Datasource/CakeSession.php, line 213
SessionComponent::check() - CORE/Cake/Controller/Component/SessionComponent.php, line 96
Reason
According to online resources it because some package on your Debian/Ubuntu machine is trying to do "Session garbage collection" where it shouldn't.
The session data is stored in /var/lib/php5 and it has the permission of "drwx-wx-wt 2 root root". So those packages cannot read into them.
Solution
The fix is simple: In your php.ini set session.gc_probability to 0 and restart apache
Detailed steps:
- Find your php.ini usually its at:
/etc/php5/apache2/php.ini
- Edit it and find this setting
session.gc_probability - Now set that value to 0
- Restart apache
sudo /etc/init.d/apache2 restart
Resources
For more information, read:
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