Re: SESSION ID Problem.

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I concur, I’ve had the same problem with disk space issues. 

Thanks,

Bastien

> On Nov 2, 2017, at 12:53 PM, Adam Jon Richardson <adamjonr@xxxxxxxxx> wrote:
> 
> On Thu, Nov 2, 2017 at 12:46 PM, Adam Jon Richardson <adamjonr@xxxxxxxxx>
> wrote:
> 
>>> On Thu, Nov 2, 2017 at 12:39 PM, Tedd Sperling <tedd@xxxxxxxxxxxx> wrote:
>>> 
>>> Hi gang:
>>> 
>>> Normally when I want to start a session, I use --
>>> 
>>> <?php session_start();
>>> 
>>> — and this has worked for me for years.
>>> 
>>> Starting last semester, my PHP class started having problems with session
>>> ID’s.
>>> 
>>> The problem occurs as follows:
>>> 
>>> Student “A" runs their code (using session_start() ) and everything works.
>>> 
>>> Student “B" runs their code (using session_start() ) and the server
>>> reports "Permission denied (13) in…” — AND displays the exact same session
>>> ID as the first student (Student A).
>>> 
>>> Oddly enough, after a while, things work out and the server starts
>>> generating different session ID's for each student.
>>> 
>>> Anyone have an ideas as to why this happens?
>>> 
>>> Keep in mind, that both students have their own separate account on the
>>> school's server AND they are running their own scripts . Even my scripts
>>> are not immune to this problem. For example try running my script here:
>>> 
>>> http://citw.lcc.edu/~sperlt/citw185/examples/session-page1.php
>>> 
>>> Currently, my script generates:
>>> 
>>> Warning: session_start(): open(/var/cpanel/php/sessions/
>>> ea-php56/sess_qsabg71cg8u6i2dfgpsbmfth74, O_RDWR) failed: Permission
>>> denied (13) in /home/sperlt/public_html/citw185/examples/session-page1.php
>>> on line 3
>>> 
>>> However, yesterday the script ran without error.
>>> 
>> 
>> Sometimes this can mean that there are disk space issues. I've had this
>> issue in the past, and one of the answers on SO (by Haz) suggests the same
>> thing:
>> https://stackoverflow.com/questions/4585086/how-can-i-
>> fix-the-permission-error-when-i-call-session-start
>> 
> 
> And, as David Goodwin noted on that same SO link, it seems like I also had
> a garbage collection issue long ago that proved just as unpredictable. If
> the issue persists, you could always use a custom handler with MySQL or
> SQLite to circumvent it just to ensure your students can avoid issues until
> you can figure out the issues. Sometimes I completely purge the tmp
> directory (or whatever directory is being written to) just to make sure
> there aren't any file permission issues.
> 
> Adam

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