I've redirected this to zope@zope.org, since I think deployment topics are more likely to generate a good discussion there. My take: Load-balancing: Use squid and ICP support in Zope 2.6 to load balance. Consider using directory storage for your backend storage because backup and replication of your ZEO storage server's storages (for high-availability clustering) can be done with standard Unix command-line tools. Hardware: depends on what you are trying to do; for ZEO clients: lots of low-end dense 1CPU app servers (blade servers), or 2CPU AMD boxes with plenty of ram running two Zope instances bound to each CPU (assumes CPU affinity is possible in your OS)...both setups might work. Caching: cache what you can with Squid, and if you can, tune your ZEO clientstorage connection cache to fit your needs. If a lot of pages on your site are cacheable, cache them in Squid, which has more tunable caching than Apache. There is no one-size-fits all answer for hardware, unfortunately. Questions worth asking: - Do you need physical density (do you rent rackspace at a premium)? - How cacheable (at the page level) are your applications? News delivery is very cacheable, but personalized ecommerce sites are not. - How much content are you going to store in the object database? - How CPU intensive are your applications? How memory intensive? - How much traffic do you expect to see to your site? - What particular processes are very intensive, and how do you think you want to partition them? Think about things like bulk reindexing or adding of content, etc. I'll give you my thoughts if you have more specific answers to some of these questions... Cheers, Sean -----Original Message----- From: Brian R Brinegar [mailto:brinegar@ecn.purdue.edu] Sent: Monday, November 18, 2002 8:14 AM To: zope-dev@zope.org Subject: [Zope-dev] Production System Specs Hello, Can anyone point me at some recommended setups for a ZEO cluster. I would like some or all of the following information: * Hardware Specs * Load Balancing * Caching Information (Apache / Squid Caches) Any information would be very helpful. Thanks, -Brian Brinegar _______________________________________________ Zope-Dev maillist - Zope-Dev@zope.org http://lists.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope )