On Jun 10, 2010, at 4:03 PM, Chuck Hill wrote: > Moving this to the correct list. >
Thanks. > > On Jun 10, 2010, at 12:54 PM, Ricardo J. Parada wrote: > >> >> We have one app that we just turned on concurrent request handling and we >> seem to get a deadlock. But I'm not sure why or what to do to fix it. :-) >> This happens logging in to the application. >> >> I'm using WO 5.4.3 and Wonder revision 10715. >> >> Here's a stack trace of each thread (it looks like the deadlock is between >> WorkerThread13 and WorkerThread14: > > No, both of those threads are waiting for a session that other threads have > checked out (possibly the same thread). Either that thread is takinga long > time or the session did not get checked back in. > When does the session get checked back in? I'm not familiar with that aspect of WO. > Do you have any code the Session methods awake, sleep, or terminate? > I looked and the code in awake() is just setting a couple of i-vars. It doesn't seem to be doing much. But I'll look more carefully. > > Chuck > > >> >> >> Jun 10 10:14:34 PatientPortionPricer[2013] FATAL >> er.extensions.statistics.ERXStatisticsStore - Request is taking too long, >> possible deadlock: 300294 ms >> >> Request Thread Name: ERXStopWatchTimer >> >> Java2D Disposer: >> Thread[Java2D Disposer,10,main]: >> at java.lang.Object.wait(Native Method) >> at java.lang.ref.ReferenceQueue.remove(Unknown Source) >> at java.lang.ref.ReferenceQueue.remove(Unknown Source) >> at sun.java2d.Disposer.run(Unknown Source) >> at java.lang.Thread.run(Unknown Source) >> WorkerThread13: >> Thread[WorkerThread13,5,main]: >> at java.lang.Object.wait(Native Method) >> at java.lang.Object.wait(Unknown Source) >> at >> com.webobjects.appserver.WOSessionStore.checkOutSessionWithID(WOSessionStore.java:191) >> at >> com.webobjects.appserver.WOApplication.restoreSessionWithID(WOApplication.java:1913) >> at >> er.extensions.appserver.ERXApplication.restoreSessionWithID(ERXApplication.java:2215) >> at >> com.mpv.webapp.patientportionpricer.Application.restoreSessionWithID(Application.java:46) >> at >> com.webobjects.appserver._private.WOComponentRequestHandler._dispatchWithPreparedApplication(WOComponentRequestHandler.java:324) >> at >> com.webobjects.appserver._private.WOComponentRequestHandler._handleRequest(WOComponentRequestHandler.java:369) >> at >> com.webobjects.appserver._private.WOComponentRequestHandler.handleRequest(WOComponentRequestHandler.java:445) >> at er.ajax.AjaxRequestHandler.handleRequest(AjaxRequestHandler.java:17) >> at >> com.webobjects.appserver.WOApplication.dispatchRequest(WOApplication.java:1687) >> at >> er.extensions.appserver.ERXApplication.dispatchRequestImmediately(ERXApplication.java:1920) >> at >> er.extensions.appserver.ERXApplication.dispatchRequest(ERXApplication.java:1885) >> at >> com.webobjects.appserver._private.WOWorkerThread.runOnce(WOWorkerThread.java:144) >> at >> com.webobjects.appserver._private.WOWorkerThread.run(WOWorkerThread.java:226) >> at java.lang.Thread.run(Unknown Source) >> Session Timeout Thread: >> Thread[Session Timeout Thread,5,main]: >> at java.lang.Thread.sleep(Native Method) >> at >> com.webobjects.appserver.WOSessionStore$_SessionTimeoutManager.run(WOSessionStore.java:98) >> at java.lang.Thread.run(Unknown Source) >> WorkerThread14: >> Thread[WorkerThread14,5,main]: >> at java.lang.Object.wait(Native Method) >> at java.lang.Object.wait(Unknown Source) >> at >> com.webobjects.appserver.WOSessionStore.checkOutSessionWithID(WOSessionStore.java:191) >> at >> com.webobjects.appserver.WOApplication.restoreSessionWithID(WOApplication.java:1913) >> at >> er.extensions.appserver.ERXApplication.restoreSessionWithID(ERXApplication.java:2215) >> at >> com.mpv.webapp.patientportionpricer.Application.restoreSessionWithID(Application.java:46) >> at >> com.webobjects.appserver._private.WOComponentRequestHandler._dispatchWithPreparedApplication(WOComponentRequestHandler.java:324) >> at >> com.webobjects.appserver._private.WOComponentRequestHandler._handleRequest(WOComponentRequestHandler.java:369) >> at >> com.webobjects.appserver._private.WOComponentRequestHandler.handleRequest(WOComponentRequestHandler.java:445) >> at er.ajax.AjaxRequestHandler.handleRequest(AjaxRequestHandler.java:17) >> at >> com.webobjects.appserver.WOApplication.dispatchRequest(WOApplication.java:1687) >> at >> er.extensions.appserver.ERXApplication.dispatchRequestImmediately(ERXApplication.java:1920) >> at >> er.extensions.appserver.ERXApplication.dispatchRequest(ERXApplication.java:1885) >> >> >> Thanks, >> Ricardo >> > > -- > 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. 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