I've tuned ColdFusion 10 IIS connector according to following recommendations: http://blogs.coldfusion.com/post.cfm/tuning-coldfusion-10-iis-connector-configuration http://www.webtrenches.com/post.cfm/resolve-stability-problems-and-speed-up-coldfusion-10
Two sites in my configuration: main production and cfadmin. Each with its own connector with similar connection settings: worker.cfusion.max_reuse_connections=250 worker.cfusion.connection_pool_size=500 worker.cfusion.connection_pool_timeout=60 Tomcat server.xml (<cf-installation-path>\cfusion\runtime\conf\server.xml) contains recommended addon: maxThreads="500" connectionTimeout="60000" Both sites work fine after manual tuning. But when I go to CF admin panel in Server Settings > Request Tuning, I see: Maximum number of simultaneous Template requests = 500 Obviously it was inherited either from worker.properties or from server.xml I'm a bit confused now. On one hand Adobe recommends number of simultaneous requests = num_of_CPU_cores * 4 or 5 which is 16 - 20 requests on Quad Xeon CPU. At least it was so for CF 7/8/9. On other hand latest recommendations from Adobe are connection_pool_size = 500 for two_sites_conf and it sets simultaneous Template requests = 500 in CF admin. Could anybody clarify what is a best values for connection_pool_size and how it is connected to simultaneous Template requests in CF admin? >From my point of view 500 connections are risky. At linux/apache each worker connection takes 30-80 MB of RAM. I don't know how much memory uses one IIS tomcat connection in Windows but if it uses for example 10 MB, it gives 5 GB of RAM only for connections in case of high traffic / bots invasion / DDoS attack. So question is: what connection pool settings do you use in your production sites? If you use 500 connection_pool_size/simultaneous_template_requests, how stable is your production site in case of peak load with a lot of requests coming simultaneously? Sergey Croitor, ECommercePartners.net ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Order the Adobe Coldfusion Anthology now! http://www.amazon.com/Adobe-Coldfusion-Anthology/dp/1430272155/?tag=houseoffusion Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:356978 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/groups/cf-talk/unsubscribe.cfm
