Have you checked the Apache error logs and the console logs? Run the hardware tests? Run drive diagnostics? I'd start looking at that. This is definitely not normal for WO 5.4.3 on Snow Leopard.
Chuck On Jan 19, 2011, at 1:46 PM, Tim Worman wrote: > Thanks Chuck. It's really disconcerting since I have had times where I > checked on the server and it has 12 hung httpd threads consuming 100% > processor. > > I am running the built-in version on Snow Leopard. It reports that it is > 2.2.14. If it is WO specific, the same app did not exhibit this behavior on > another server. > > I'm considering whether I could log every request the app generates and see > if I can match up the request (or even the method that was run) with the time > that the hung process was spawned? Or maybe httpd has some advanced logging > that could tell me something. > > Love to hear if anyone else has seen anything similar and how it got > addressed. > > Tim Worman > UCLA GSE&IS > > On Jan 19, 2011, at 10:59 AM, Chuck Hill wrote: > >> We have seen this with Apache 1.3. I don't think it was a WO specific issue >> though. >> >> Chuck >> >> >> On Jan 19, 2011, at 10:50 AM, Tim Worman wrote: >> >>> I have an app that, during the course of normal usage, is starting httpd >>> processes on the server that instantly hit 100% CPU usage of one core. This >>> can happen multiple times during times when the app is under heavier load. >>> After some time I can have many httpd processes where TOP reports each >>> using 100% of a core. When I try to log into the app and poke around to try >>> and reproduce the issue, I am unable. >>> >>> Does anyone have any pointers as to how I can try to narrow down specific >>> requests or conditions that may be causing these processes to be spawned? >>> >>> This app was just recently moved to MOSXS/Intel. Previously it ran on MOSXS >>> 10.5/PowerPC and I didn't see the same problems there. Truthfully though, >>> it could be caused by some other change I made since but I thought the >>> architecture could be an important factor if someone else has seen similar >>> symptoms. >>> >>> Tim Worman >>> UCLA GSE&IS >>> >>> >>> >>> _______________________________________________ >>> Do not post admin requests to the list. They will be ignored. >>> Webobjects-dev mailing list ([email protected]) >>> Help/Unsubscribe/Update your Subscription: >>> http://lists.apple.com/mailman/options/webobjects-dev/chill%40global-village.net >>> >>> This email sent to [email protected] >> >> -- >> Chuck Hill Senior Consultant / VP Development >> >> Practical WebObjects - for developers who want to increase their overall >> knowledge of WebObjects or who are trying to solve specific problems. >> http://www.global-village.net/products/practical_webobjects >> >> >> >> >> >> >> > -- Chuck Hill Senior Consultant / VP Development Practical WebObjects - for developers who want to increase their overall knowledge of WebObjects or who are trying to solve specific problems. http://www.global-village.net/products/practical_webobjects
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