Hi gang,
I'm encountering a strange, random, sporadic error on a new server.
Basically, sometimes, in a non-repeatable fashion, a page will not load.
In NN7 Mac, the error is "the page contained no data". In IE5.x Mac, the
error is along the lines of "host not found" or "could not access URL ...".
Until 5 minutes ago, I was pretty damn sure it was the host, and have been
complaining constantly for about a week, but I was just using some non-PHP
stuff on the server without any problems, which leads me to believe it may
be a problem with my code, or perhaps with a portion of the installation or
PHP, or a combination.
Problem is, this will be like finding a needle in a haystack. For starters,
I can't repeat the problem on my server. I also can't repeat the problem on
another server. It's also random -- I can go a day without seeing the
error, and then get stuck with them for half an hour or more. It's also on
any and every script, not just *a script* or *some scripts*.
I'm also not inclined to post any code, because the application is quite
large and complex, with many include files and modules.
I guess what I'm hoping for is some wild stabs in the dark as to what the
problem might be, and where I might start looking.
I have no idea where to start. It seems to me that if it IS my code, it
must be something high up at the start of my scripts, in the include()'d
files.
The code does make a "persistent" connection to the DB in an auto-prepend
file at the beginning of each and every script:
<?
$db = mysql_connect($dbhost, $dbuser, $dbpass);
mysql_select_db("db_name",$db);
?>
The code also:
- (occasionally) makes use of header() redirects
- makes use of trans_sid for users without cookies (I have them enabled, so
pretty much rules that out), but I thought it was worth mentioning,
especially since this feature is unique to this server (my local test server
doesn't have it for example)
- inserts a row into the database for my statics/counters
- calls session_start();
Any ideas?
You're probably all laughing and shaking your head with a "no", but it's
worth a shot, I'm all out of ideas!!
Justin
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