Codeigniter session expire problem

I am developing an upload module to upload large files around 20 to 25 MB
I am using uploadprogress.so for showing progressbar.
Everything goes fine till 43% and then jumps to the login page.
It seems session expires. I am using CI session library.

I tried all written in many forums like
$sess_expiration_time=0

but nothing works.

Pls help.
codeoxygenAsked:
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Ray PaseurCommented:
Does this only happen when you do not use a progress bar?  I am wondering if maybe there is a way to repeatedly extend the session expiration time as blocks of data are uploaded?

Does it always fail at 43%?  What is the elapsed time to get to 43%?

Does it happen if you do the uploads outside of CodeIgniter?
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codeoxygenAuthor Commented:
I am not sure about these questions, I need it working on the current system.
It is failing at 43% in my machine.
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Ray PaseurCommented:
Is 43% a consistent failure?  What is the elapsed time to get to 43%?
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codeoxygenAuthor Commented:
43% happens in around 10 min. that may depend on internet speed also i guess
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Ray PaseurCommented:
Actually I think the internet speed is not relevant.  I was looking for the time to failure.  Ten minutes is 600 seconds, so you may be able to find the string "600" somewhere in an INI file or in one of the scripts.  That's what I would be looking for.

The default session timeout in PHP is 1440 seconds (24 minutes).  This means that any session data still lying around after 24 minutes of inactivity is eligible for garbage collection.  The garbage collector is not started until a script on the server (any script) executes session_start().  Apparently CodeIgniter has its own ideas about garbage collection!
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codeoxygenAuthor Commented:
Gr8 Ray. Thanks,
I had changed all settingsin php.ini but left the max_execution_time and it was 600 :)
Its working now.
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Ray PaseurCommented:
Love it when a plan comes together!
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