Hi What changes did you make or where did you get them from? I'm a Zope user and don't know the internals. So I'd be very grateful for some help. If you could ellaborate on those 2-3 lines you apparently changed... I'll check on my situation with -D and try your startup option! I'll post my results. -- And for those following the "threading and prformance" track. I've tried if ProxyPass or Rewrite make any difference in threading behaviour - they dont! Mit freundlichen Grüßen / Best regards Oliver Erlewein

-----Ursprüngliche Nachricht----- Von: Hannu Krosing [mailto:hannu@krosing.net] Gesendet am: Freitag, 1. Februar 2002 20:37 An: Dario Lopez-Kasten Cc: zope@zope.org Betreff: Re: [Zope] Re : Zope on solaris for the beginner.

On Fri, 2002-02-01 at 19:22, Dario Lopez-Kasten wrote:

...

...

Why? Even Python 1.5.2 with multithreading works for

me on Solaris

...

2.5.1.

Oleg. -- Oleg Broytmann http://phd.pp.ru/ phd@phd.pp.ru

There are strange, core-dumping problems and threadrealted issues with pythons post 1.5.2 afaik, both performace wise and otherwise.

Check the archives of zope and zope-dev. I myself generated a lot of the messages. And, recently (this or last week) there have been more reports of Solaris related problems...

It seems that Zope is more susceptible to these problems than other python software. I don't really know why but I suspect that Zope is one of there larger python apps out there and thus suffers more than other apps from shortcomings.

I haven't heard of realted problems from the Twisted copmmunity, but then I suspect that not too many of them use solaris on a daily basis (this is only an assumption mind you, I might very well be wrong).

The main problem I had was about asyncore getting signals from exiting childs of os.popen, as solaris delivered these to the first waiting thread and not the thread that had spawned the child.

It had a simple 2 or 3 line fix.

I also have some problems with database (oracle) transactions never committing/aborting but I have these on linux/postgresql as well, so this is not solaris specific.

---------------- Hannu

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