Hello, We are seeking information on running Zope under an extreme load. Here are the metrics of the system that we would like to migrate: # of users with an account: 40,000 # of R/O concurrent users at peak time: 5,000 # of R/W concurrent users at peak time: 5,000 # of (static) documents: 800,000 Read-only users mostly search and view documents. Searching is currently done with metadata, but we would like to add full-text search on text renditions of the documents. Read-write users mostly view and index documents. --> Has someone already run Zope under such extreme conditions? --> Could someone share ideas on hardware and software issues? We plan to do some kind of feasibility testing. At this time, here are a few of our ideas: 1. Run ZEO 2. Possibly add an additional layer of load-balancing with specialized Linux software 3. Serve static pages with Apache or IIS 4. Do not rely on ZODB only � consider MySQL, Postgres, Oracle 5. Consider alternatives to ZCatalog � for example Lucene 6. Develop customization with Products instead of ZClasses 7. Use Zope RAM caching as much as possible Your opinion on this topic will be very much appreciated. Thanks, Robert __________________________________ Do you Yahoo!? The New Yahoo! Search - Faster. Easier. Bingo. http://search.yahoo.com