Zope/Python port defaults questions

[Michael Dexter]

Hello,

I have been using Zope on FreeBSD (x86 5.2 and 6.0) via ports for 
over a year now and I couldn't help but notice that the default 
environment is not quite Zope friendly. For example:

1. People still seem to get caught not setting HUGE_STACK_SIZE when 
building Python for Zope use and to a lesser extent if IPv6 is 
disabled in the kernel (I forget the issue, maybe a warning.)

2. Zope MemoryError as a Zope process runs out of memory because the 
default maximum memory per process is too small, requiring settings 
in loader.conf or KERNCONF like: (perhaps setting them to 1GB but NOT 
something close to physical memory)

kern.maxdsiz="1610612736"
kern.dfldsiz="1610612736"
kern.maxssiz="1610612736"

3. Python seem to be suing /var/tmp over /tmp and this has made it 
difficult to figure out why placing 
larger-than-available-space-in-var files into ZODB would fail when 
there is plenty of space in /tmp. I am told but have not verified 
that the solution is to place a TMPDIR variabl in zopectl so that 
Python will default to it. (Reportedly it should step between 
available tmp dirs but this behavior did not seem to help/work.


A. Considering these pitfalls, might some of these want to be defined 
or offered as questions in the appropriate ports? (HUGE_STACK_SIZE is 
a choice but defaults to the zope-unfriendly setting) and...

B. Have I forgotten any other settings that may prevent my Zope from 
blowing up at night? :)

FYI, the best zope-on-freebsd page I have seen is on the Zettai help 
pages but they relate to their own hosting environment. 
(http://www.zettai.net/Support/Howto/)

Michael.