The thing is that it directly uses DatabaseContext like that EODatabaseContext.registeredDatabaseContextForModel(eoEntity.model(), ec); It brakes stability of multithreading of ERXObjectStoreCoordinator pool somehow. And we see exceptions randomly quite on any fetch.
Best regards, Vladimir Gadyatskiy On Mar 21, 2013, at 7:42 PM, Michael Gargano wrote: > I've checked this in our code several times, there is another app where we do > stuff like that, but not in this one. > > Thanks. > -Mike > > -----Original Message----- > From: Chuck Hill [mailto:[email protected]] > Sent: Thursday, March 21, 2013 11:07 AM > To: Michael Gargano > Cc: vladimir gadyatskiy; WebObjects Development; Mark Cassidy > Subject: Re: EOF - statement has been closed? > > Another possibility is that something in your code (or Wonder, unlikely to be > in WO itself) is accessing the database context or below without proper > locking and using and closing this statement behind EOF's back. It looks > less like a race condition and more like an improperly shared resource. > > Chuck > > On 2013-03-21, at 7:47 AM, Michael Gargano wrote: > >> Hi Vladimir, >> >> Mark and I work together. We have not found the solution to >> this problem. We modified the postgres jdbc driver to provide some >> additional logging, and whatever slight delay that has added seems to have >> lessened the frequency of the problem. We're not sure where it is >> happening, but I'm convinced it has to be a race condition in wonder or EOF >> at this point (unless there's something wrong with the postgres jdbc driver >> which I find hard to believe since so many people are using it). I've >> included Mark on this email as well. Maybe we can find a solution. >> >> Thanks. >> -Mike >> >> >> From: [email protected] >> [mailto:[email protected]] On >> Behalf Of vladimir gadyatskiy >> Sent: Wednesday, March 20, 2013 3:25 PM >> To: WebObjects Development >> Subject: RE: EOF - statement has been closed? >> >> Hello, all >> >> Sorry, I do not know how to ask Mark Cassidy directly, he'd asked about >> connection lost problems here: >> http://lists.apple.com/archives/webobjects-dev/2013/Jan/msg00429.html >> Mark, did you find a solution? Seems we have the same problems with Postgres >> 9.2... >> Thanks for any help. >> >> Best regards, >> Vladimir Gadyatskiy >> >> _______________________________________________ >> Do not post admin requests to the list. They will be ignored. >> Webobjects-dev mailing list ([email protected]) >> Help/Unsubscribe/Update your Subscription: >> https://lists.apple.com/mailman/options/webobjects-dev/chill%40global-village.net >> >> This email sent to [email protected] > > -- > Chuck Hill > Executive Managing Partner, VP Development and Technical Services > > 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/gvc/practical_webobjects > > Global Village Consulting ranks 13th in 2012 in BIV's Top 100 Fastest Growing > Companies in B.C! > Global Village Consulting ranks 76th in 24th annual PROFIT 200 ranking of > Canada's Fastest-Growing Companies by PROFIT Magazine! > > > > > > > > > > > > >
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