"Chris McDonough" <chrism@digicool.com> wrote:

No. You shouldn't be leaking threads. Can you trace the thread leakage down to a single Product?

----- Original Message ----- From: "Jay, Dylan" <djay@avaya.com> To: <zope-dev@zope.org> Sent: Monday, December 18, 2000 7:00 PM Subject: [Zope-dev] Fault tolerance and thread-loss

...

I'm finding that my installation is blocking all requests after awhile. By best guess would be that threads are being used and somehow becoming permanently blocked. When all 4 are gone then the server is useless and has to be restarted.

Seems to me this is a real problem for fault tolerance. Perhaps a monitor should be run on a separate thread that starts aborting transactions when they have been running too long and there are few remaining threads.

Does this exist already?

I'm not really replying to either question, but guessing at the underlying cause of the problem: this smells *exactly* like the behavior induced by the "multiple PUT/POST" race condition bug, corrected by Evan Simpson's patched ZServer/HTTPServer.py: http://www.zope.org/Members/4am/postfixbug Tres. -- =============================================================== Tres Seaver tseaver@digicool.com Digital Creations "Zope Dealers" http://www.zope.org