[Zope] highly available Zope thread; our hanging problem

[Brian Takashi Hooper]

Hi all -

I was looking at the discussion from April that was posted on the
HighlyAvailableZope Wiki about problems with Zope hanging; we had a
similar situation here at Digital Garage which seemed to be alleviated
by changing the zombie_timeout to be really short (like, 1 minute). 
Before changing the zombie_timeout, the server would periodically hang
and not give any responses to requests, sometimes recovering after a
short time.

At this point, I don't have anything more than just an empirical
observation - changing this parameter seemed to help our server.  Has
anyone else noticed anything similar, or can explain this observation?

Thanks,
--Brian Hooper