PHP/Apache or IE problem (no GPC data)

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  • Wolter Kamphuis
    #1

    PHP/Apache or IE problem (no GPC data)

    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).

    We also see that every server have their own set of pages who give
    problems. Server A has problems with page X and Y and server B has
    problems with page Y and Z.

    Every servers uses the same PHP source, latest PHP (4.4.0-pl1-gentoo)
    and Apache (2.0.54-r31).

    I'm guessing that this is a Internet Explorer problem, maybe caching
    related?

    Anybody here any tips where to look, I'm pretty much clueless now.

    thanks in advance,
    Wolter Kamphuis
    Tags: None
    • Juha Suni
      #2
      Re: PHP/Apache or IE problem (no GPC data)

      Wolter Kamphuis wrote:[color=blue]
      > 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).[/color]
      [color=blue]
      > I'm guessing that this is a Internet Explorer problem, maybe caching
      > related?[/color]

      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?

      --
      Suni


        Comment

        • Wolter Kamphuis
          #3
          Re: PHP/Apache or IE problem (no GPC data)



          Juha Suni wrote:[color=blue]
          > Wolter Kamphuis wrote:
          >[color=green]
          >>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).[/color]
          >
          >[color=green]
          >>I'm guessing that this is a Internet Explorer problem, maybe caching
          >>related?[/color]
          >
          >
          > 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?
          >[/color]
          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

            Comment

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