Mailing Lists: Apple Mailing Lists
Image of Mac OS face in stamp
Re: CLOSE_WAIT processes and instances HANG
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: CLOSE_WAIT processes and instances HANG




On Jul 29, 2008, at 5:14 AM, Bob Stuart wrote:

Hi All,
I Know I need to update some of this but it had been running fine for quite a while.


	WebObjects 5.3.3
	OS X 10.4.11
	Java  1.5.0_13-b05-241
	WONDER 3 from a March-03-2007 Daily build
	Frontbase  4.2.7

"All of a sudden" The application is hanging often. No good idea why. Running ~10 instances of the the same code base with different launch params to connect to different client DB's

Many of the instances for will hang. The DB seems fine and we don't see all the instances for any DB fail at once. If no one hits the app they seem to stay fine such as over the weekend. Otherwise they seem to die at least once a day. The more heavily used die more often but the very lightly used die also.

I did a netstat and found many CLOSE_WAIT when the instances were hung but don't know if that is relevant.

My initial guess is that this is just a symptom of the problem.


We did deploy new features recently but no "major"  type changes.

Ideas? Suggestions?

The symptoms sound like deadlock to me. It does not take a major change to cause this. You will need a thread dump to diagnose further. You can find instructions here: http://www.gvcsitemaker.com/gvc.webobjects/faq&mode=single&recordID=41413



Chuck


-- 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







_______________________________________________ Do not post admin requests to the list. They will be ignored. Webobjects-deploy mailing list (email@hidden) Help/Unsubscribe/Update your Subscription: This email sent to email@hidden


Visit the Apple Store online or at retail locations.
1-800-MY-APPLE

Contact Apple | Terms of Use | Privacy Policy

Copyright © 2011 Apple Inc. All rights reserved.