Greetings,
I'm having a really odd problem with a phplib-based application and am
wondering if anyone else has seen this before.
The system uses phplib templates, database abstraction, and
authentication and, generates a long listing of database records (about
650 rows, currently) after authentication. It takes a little under 20
seconds after the request for the server to generate and send the page.
I have tried to get them to let me break the output into pages but, they
like having the full listing all at once.
There are over a hundred users. For most of them, everything works
great. For a handful of them - maybe a dozen - there is some kind of a
weird caching problem. They authenticate and, after the standard load
time, end up with a blank page. They can view other pages (like the
User Administration page) with no trouble.
I had a chance to look at one of the problem systems first-hand this
past week. The user has two identical Compaq notebooks, running Windows
XP. All current patches are installed on both of them. One system
works perfectly and the other exhibits the problem. I also connected my
own notebook and had no trouble accessing the system. So, it doesn't
seem to be connection-specific.
After authentication, the problem system loads for about 20 seconds and
then displays the blank page. If we do anything to the URL while the
blank page is displaying - remove the index.html from the end of the URL
string or, add a query string - the listing appears instantly (from
cache, presumably), even when it shouldn't (like when the query string
tells it to display something else).
This happens in both IE and Mozilla. According to the page info in
Mozilla, the page is loading from disk cache. Both browsers have been
set to check the server for updated versions on every visit.
The problem systems seem to be able to load pages on other websites
(even from the same server) with no issues.
Anybody have any idea what the problem might be and how to address it?
I'm guessing a full system re-install would correct it but, that's going
to be very unpopular and likely unworkable for most of the troubled users.
Andrew Crawford
|
