Chris, We could be suffering form the same bug, but different causes, I have a nagging feeling this one is burried deep :) Yeah, our Postgres connection gets used quite a bit actually. But I very much doubt that'd be it, there'd be a whole lot of people screaming! Nope, no ZEO for me, though it's an option for the future. Now that I'm graphing my memory usage though I hope to get some clues. I'm thinking I may be using something in my standard_html_header that could be the cause (it's used on the entire site). Do you use UserSniffer.py? I do have dtml-var's with Dates in them in there too (DublinCore dates), maybe there's a problem with some of the methods or objects? I'm not sure what IOBuckets are FOR, I mean Input/Output, but not sure where they're used ... Maybe figuring that out could help? I'm also recalling having problems with CMF, for instance, one CMF (The most used one) would stop responding, while the other kept going. Alllways thought that strange ... hasn't done it in a while, but maybe a useful symptom to look into. Stay in touch! thanks, J.F. -----Original Message----- From: Chris Muldrow [mailto:cmuldrow@fredericksburg.com] Sent: Friday, January 17, 2003 11:27 AM To: Jean-Francois.Doyon@ccrs.nrcan.gc.ca; zope@zope.org Subject: Re: Zope memory leak I'm in a similar boat, but I think we might be seeing a different problem. Our leak didn't appear until we switched to 2.6, so I'm pretty sure it's not the AccessControl problem--it was supposed to be fixed in 2.6. And we have a PostGres connection, but it's not really doing anything right now. Are you using ZEO?