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Bug #24534 instability : iis is reseted automatically frequently
Submitted: 2003-07-08 05:20 UTC Modified: 2003-07-27 14:33 UTC
Avg. Score:3.5 ± 0.9
Reproduced:4 of 4 (100.0%)
Same Version:1 (25.0%)
Same OS:1 (25.0%)
From: mstaiger at informatik dot uni-siegen dot de Assigned:
Status: No Feedback Package: IIS related
PHP Version: 4.3.2 OS: Win2k
Private report: No CVE-ID: None
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 [2003-07-08 05:20 UTC] mstaiger at informatik dot uni-siegen dot de
win2k "service control manager" terminates and restarts www-services automatically frequently. During this time, web-service is not available (of course).

This information is logged in windows system log.

I'm currently not able to trace this behaviour to a certain point in php-code, but it did not happen with versions prior to 4.2 and it happens on different machines with the current php-version.


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 [2003-07-09 17:54 UTC]
And what exactly is the PHP problem here?
If I understood correctly, this 'terminates and restarts' is perfectly normal thing to happen?

 [2003-07-10 03:32 UTC] mstaiger at informatik dot uni-siegen dot de
My description seems to give a wrong impression of the situation :
It is definitively NOT a "normal" thing to happen if the web service resets several times during a day. 

This behaviour just started when we upgraded from php4.1 to 4.3.2, so to me it seems to be related to the new version of php - Am I wrong?

Problem is, that I'm currently not able to trace the reset to certain situations. Can someone recommend a monitoring tool for this situation?
 [2003-07-13 10:56 UTC]
And make sure you remove ALL existing PHP related dlls/binaries from your system before installing the new version.

 [2003-07-17 02:31 UTC] mstaiger at informatik dot uni-siegen dot de
So far the snapshot didn't help. IIS keeps resetting (1-2 times a day).
BUT : I found out, that before it happens, the available System Memory goes rapidly down. Does this information help in any way?
 [2003-07-22 07:07 UTC]
If the problem is due to a memory shortfall try the following test. Make a simple php test script and then using ApacheBench or httpref try sending a large number of requests to it. Meanwhile monitor the memory usage to see if it continues to increase until eventually there is no memory avaliable.
 [2003-07-27 14:33 UTC]
No feedback was provided. The bug is being suspended because
we assume that you are no longer experiencing the problem.
If this is not the case and you are able to provide the
information that was requested earlier, please do so and
change the status of the bug back to "Open". Thank you.

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