AM wrote at 2003-3-13 11:23 -0800:
We have Zope 2.6.1 (upgraded) running behind Apache 2.0 on a Redhat 8 dual processor machine with Py 2.1.3. Its been live for quite a few days.
Now every night at around 3-5 AM the server sort of stops responding. A ps -ax still shows the process running, and a ping to port 8080 on the machine returns a valid response, just that the server doesnt respond and Apache returns a proxy error. ... Any ideas as to what might be causing that? Has anybody seen that before?/
We have a similar effect: Zope suddenly stops and sometimes even a SIGTERM is unable to kill it (requires SIGKILL). I was once able to provoke this behaviour by pressing the "minimize" button in "Control_Panel --> Database Management --> Flush Cache". Therefore, I expect the problem to be a deadlock somehow related to invalidation (something requiring two looks acquired in different order at different places). I did not yet seriously analyse the problem. Dieter