php script hangs server

[codesmith]

Hello,

This isn't directly a Plesk question but since y'all are my favorite *nix support team....

While developing PHP scripts occasionally a script will go out of control, endless loop, etc. This is bringing our server to it's knees - loads of 45 or higher, sometime necessitating a manual reboot. Is there anything that can be done to 'throttle' apache so it times these out or not so much processing time goes to this?

Thanks....

 

[jamesyeeoc]

There was a thread at WHT which dealt with a similar problem.

Not sure if one of those suggestions will help you.

 

[serial-thrilla]

two possible reasons:
1. php bug.
2. flaw in the script

but regarding reason 2, i think php would disable the script after a certain amout of time leading me to think reason 1 is the problem.

upgrade to the latest version of php...
if that doesn't help, or you already have the latest, then submit a bug report.

perhaps this will help you knock down the dam instead of trying to pump the water over it...

 

[codesmith]

Hmm I let this go and now I'm back at it. An endless loop on a PHP script definitely jumps the load on the server way high and I pretty much have to restart Apache to stop it.

We have
max_execution_time=90
and memory_limit=32M

to handle larger file uploads and Gallery stuff (thumbnail processing).

I don't know why the max_execution_time is being ignored - the scrips go on forever. We are running safe_mode off but the script itself isn't overriding that. Apache Timeout is set to 300 seconds but can't tell if it should timeout something like this.

Any other idears?

 

[Matzn]

Oh yea, it is a very old post. But my question fit in here.

I wrote a php script for scrap a website and save some data to a file. Unfortunately i get a 504 Gateway-Timeout. That's not the problem, but i saw that the file will bigger and bigger. That means that the script was still running.

Did I miss something in the Plesk settings or is it on purpose? I always thought apache also terminated php handlers.