I'm in the process of trying to build a reliable, accurate search engine using a ZCatalog. In order to keep the catalog contents up to date, I added an Xron method to reindex the catalog every hour. This worked fine on a small site, but for a site with a catalog of 1300 documents the data.fs file grows from a few hundred meg to several gig before long, and apache/zope dies. Another problem is that Xron seems to trigger its methods as many times as it 'missed' if the server is stopped for a while. I'm only indexing dtml documents, and the ZCatalog doesn't use any metadata or special indexes. Are there any ways to prevent the catalog updates being stored in the ZODB, so no undo history is saved for the ZCatalog? Thanks -- Alex This e-mail and any attached files are confidential and are intended solely for the use of the individual or entity to whom they are addressed. This communication represents the originators personal views and opinions, which do not necessarily reflect those of The Royal College of Surgeons of England. If you are not the intended recipient, or the person responsible for delivering the e-mail to the intended recipient, be advised that you have received this e-mail in error, and that any use, dissemination, forwarding, printing or copying of this e-mail is strictly prohibited. http://www.rcseng.ac.uk Registered Charity Number: 212808