On Aug 14, 2008, at 9:48 AM, Alan Zebchuk wrote:
Has anyone ever seen a case where multiple instances of an app
become non-responsive almost simultaneously?
The log file has this:
2008-08-14 11:50:22,348 DEBUG MyApp[72021:2023 23] NSLog
(ERXNSLogLog4jBridge.java:46) -
<com.webobjects.appserver._private.WODefaultAdaptor>: Growing number
of WOWorkerThreads to 32
2008-08-14 11:50:52,350 DEBUG MyApp[72020:2009 34] NSLog
(ERXNSLogLog4jBridge.java:46) -
<com.webobjects.appserver._private.WODefaultAdaptor>: Growing number
of WOWorkerThreads to 32
I'd take that as an almost certain sign of deadlock. It might be on
the database if this happens to all instances almost simultaneously.
It could also be a very sharp, sudden spike in load.
Are you dispatching requests concurrently?
But no further information.
The projects are both using Wonder and have all the automatic
editing context locking enabled.
Any help is greatly appreciated.
When this happens, get a thread dump of each instance. Without that,
you are just guessing.
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
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