I do also see the ZPT expression stuff leaking. In my case in this order:

Products.PageTemplates.Expressions.SubPathExpr
Products.PageTemplates.Expressions.PathExpr
Products.PageTemplates.ZRPythonExpr.PythonExpr

This one does *not* go away when setting ZOPE_SECURITY_POLICY=PYTHON. I am 
also leaking refs to persistent User objects; may be a side effect though - 
like your DateTimes.

The site in question serves large ZSQL result sets via ZPT to authenticated 
users. No CMF/Plone involved.

Stefan


--On Montag, 22. Juli 2002 13:45 -0700 Andy McKay <[EMAIL PROTECTED]> wrote:

> Hey all,
>
> A client of mine seems to be plagued with memory leaks. I have a CMF /
> Plone site on We fixed some security issues that caused a major leak this
> is the same I believe as http://collector.zope.org/Zope/421, by jiggling
> settings this no longer an issue. Anyway we are still getting some minor
> leaks that severly limit the amount of the traffic the box is going to be
> able take. Lots of different objects are being leaked, including good old
> DateTime, however I dont believe its this, DateTime just happens to be
> there.
>
> Possible culprits are (trimmed down debug page) ZPT:
> Products.PageTemplates.Expressions.PathExpr,
> Products.PageTemplates.Expressions.SubPathExpr,
> Products.PageTemplates.TALES.TALESError etc...
> or AccessControl AccessControl.unauthorized.Unauthorized,
> AccessControl.SecurityManager.SecurityManager etc...
>
> A quick rummage through LeakFinder hasn't helped too much so Im not sure
> what too recommend. Good old install ZEO and restart Zope every few hours?
> Is anyone else having issues?
>
> Configuration:
>
> Plone 0.99 "Almost There"
> CMF Beta 1.3 beta 1
> Zope 2.5.1
> Python 2.1.3
> RedHat Linux 7.1
> Using Apache and pcgi to serve...
> --
>   Andy McKay
>
>
>
>
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--
Those who write software only for pay should go hurt some other field.
/Erik Naggum/


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