On 22/01/2008, Dieter Maurer <[EMAIL PROTECTED]> wrote: > Peter Bengtsson wrote at 2008-1-22 15:23 +0000: > >Perhaps I'm wrong but I suspect that a Zope I'm running is dying because > >of running out of threads. > > This is very unlikely. It may no longer respond when all its threads > are working -- but it will not die for this reason. > By dying I don't mean crashing and stopping but instead staying up and running but not responding to anything. Like a coma.
> Zope uses a worker thread pool (of size 4, by default), > allocated quite early. > It does not create further threads. It is therefore very unlikely > that it hits a thread limit. > I'm just not certain if it's this. It seems highly related to MS SQL connections but I could be wrong. The strange thing is, restarting the MS SQL server might be (we're not certain) a solution to get Zope responding again. My theory was that the threads get too attached to a network service that doesn't time out or raise an error. Sadly I can't reproduce it but the next time it happens I'll look at both DeadlockDebugger and the Control_Panel Debug info if there are any clues there. -- Peter Bengtsson, work www.fry-it.com home www.peterbe.com hobby www.issuetrackerproduct.com _______________________________________________ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )