Re: deadlock between commit and external event

From: Andrus Adamchik (andru..bjectstyle.org)
Date: Wed Mar 23 2005 - 09:38:42 EST

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Hi Chris,

Could you possibly open a bug report in JIRA - I'll be able to take a look
at it during the weekend.

Thanks
Andrus

> Hi there,
>
> I have a database frontend webapp and a couple of other simpler java
> programs which feed info into the database and I've used jgroups to tie
> the cayenne instances together; I'm using cayenne version 1.1RC3.
>
> I am getting a nasty deadlock in the cayenne event processing code which
> is caused by commitChanges resulting in first the DataRowStore mutex
> being locked, then the DispatchQueue.
>
> At the same time, I might get an external event which first locks the
> DispatchQueue, then the DataRowStore.
>
> Stack traces of the two deadlocked threads should be attached.
>
> Has anyone else seen anything like this?
>
> Chris Dawes.

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