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Posted by Wolter Kamphuis on 11/29/05 22:28
Juha Suni wrote:
> Wolter Kamphuis wrote:
>
>>Hi all,
>>
>>I've got a question, not really about PHP but this is the best
>>audience. Is anybody aware of problems with Internet Explorer not
>>sending any get/post/cookie data?
>>
>>I'm the webmaster of a large webbased administration package. Recently
>>we get complaints from our customers about them losing their session.
>>After adding extra debugging code we see that a small number of apache
>>requests provide no GET, POST or COOKIE data. This happens about 10 to
>>20 times per 200k hits (one day's work per server).
>
>
>>I'm guessing that this is a Internet Explorer problem, maybe caching
>>related?
>
>
> Not to sound arrogant, but since it's hard to delve deeper without much more
> details, I'd just like to make sure the reason is not the most obvious one.
> If you're clients are losing their sessions, are you sure its not just
> because of their sessions timing out and hence the cookie-data or the actual
> session data on the server being lost?
>
> I've just seen many posts recently about sessions and their too-early
> timeouts which are usually the result of misconfigured php settings and/or
> too active garbage collection.
>
> What are your session timeouts and the cookie timeouts?
>
After three weeks of debugging I found the problem, we misconfigured
apache on our servers. The problems seems to be this bug in IE, see
http://support.microsoft.com/?kbid=305217. We found the solution at
http://www.modssl.org/docs/2.8/ssl_faq.html#ToC49.
I've done everything to debug our PHP session code, I just knew it
worked flawless. Still I saw http hits without any get/post/cookie data,
no PHPSESSID whatsoever. I couldn't explain this so I asked here.
Anway, I glad to report our problems are gone. We've done over 2M hits
today without a single lost PHP session. Apache is running with
keepalive off, a bit harder for our servers but that's no a problem.
Wolter Kamphuis
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