Yeah, I figured it was likely something like this. I will migrate to BTree folders eventually, but these are custom Folder types subclassed from OFS.Folder in a python product that I can't change at the moment becuase I'm going live with a site using the product... Then again, if it's likely just a matter of changing what I subclass from... Sean -----Original Message----- From: Tim Cook [mailto:twcook@iswt.com] Sent: Thursday, July 26, 2001 3:39 PM To: Joachim Werner Cc: sean.upton@uniontrib.com; zope@zope.org Subject: Re: [Zope] Renaming folder slow... Joachim Werner wrote:
I have a folder that contains a hierarchy that includes some code, and about 10,000 cataloged objects; renaming that folder is really slow; I'm just curious if anyone knows why? Does the id of the folder have to be re-keyed in all of its children?
I am no expert in this, but I fear that it is even worse: The folder is physically COPIED to the new name ... (Try with a large folder. If I am right, the ZODB should have grown quite a bit after the rename.)
WRT cataloging I don't actually know if the catalog checks for name
changes.
AFAIK it doesn't ...
Folders with several thousand objects should be implemented as BTree Folders. They are at least 5 times (probably more) faster than OFS:Folder. I assume it is because BTree Folders do not render all that extra info (date stamp, size etc.) into a table. HTH, -- Tim Cook, President - Free Practice Management, Inc. http://www.FreePM.com Office: (731) 884-4126 ONLINE DEMO: http://www.freepm.org:8080/FreePM