> Hi all, > > I wrote a PHP script running in Apache which takes more than 30 seconds to > complete. It uses set_time_limit() to extend the time it is allowed to run. > The script generates thumbnails from a list of images. Upon completion, the > script redirects the browser to another page using HTTP headers. > > On my local machine (Windows + EasyPHP), the script runs as expected and > completes after a few minutes. > > I observe an unexpected behavior on my production web server: > - The script runs as expected for the first 30 seconds. > - After 30 seconds, the same script with the same parameters starts again in > a new thread/process. The initial thread/process is *not* interrupted, so 2 > threads/processes run in parallel, executing the same sequence of operations > with a 30 time shift. > - The same scenario happens every 30 seconds (i.e.: at 0"30, 1"00, 1"30, and > so on), multiplying the parallel threads/processes. > - The browser keeps on loading while the above happens. > - After some time, the browser displays a blank page and all the > threads/processes stop. I assume this is due to resources exhaustion, but I > have no means to check this assumption. > > I deduced the above reading a text file in which I log the sequence of > called functions. > > Unfortunately I have no access *at all* to my production web server > configuration (shared hosting, no documentation). I cannot even read the > configuration settings. While I'm considering moving to another host, I'd be > extremely pleased to have an explanation of the observed behavior. > > I have browsed the mailing list archives and looked for an explanation in > other forums to no avail. This thread may deal with the same issue but does > not include any explanation or solution: > http://www.networkedmediatank.com/showthread.php?tid=17140 > > Thanks for reading, and please do not hesitate to ask for further > explanations if what I'm trying to achieve was not clear! > > Cheers, > Marc. > hi Marc, probably your php file on your production server is index.php. and you must have generated a image tag with empty src like below: <img src=""> with src being empty, browsers will load your index.php as if it was an image url so loading in parallel. hope this explains your case. Virgil http://www.jampmark.com Free tips, tutorials, innovative tools and techniques for building and improving web sites. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
