We seem to be having some trouble tracking down the source of some performance issues. Usually, our site just flies, but toward the end of the business day, sometimes our servers seem to be lagging. CPU and memory utilization is low and the database doesn't seem to be under unusual load. Besides, other servers connecting to it are fine.
I'm seeing a LOT of 109 and 232 NT errors in my server.log, usually sandwiching a template that took longer than 30 seconds and near "Unable to write reply -- client browser stopped waiting for request" errors. Something's not right here, but I don't know what else to look at. Does anyone have any suggestions? I have a BigIP loadbalancing in front of a cluster of half a dozen IIS/CF5 servers, which all connect to an Oracle database running on Solaris. Windows 2000 Advanced Server IIS 5 ColdFusion 5 Enterprise Oracle 8.1.6 The web servers have the Oracle 8i client installed and use the Merant 3.70 ColdFusion OEM 32-bit Oracle8 ODBC driver. (I have the DataDirect Oracle 4.1 drivers and the Merant 3.60 drivers available, so I could up- or downgrade if necessary. We're planning to upgrade to Oracle 9 in the near future, but need the system to be more stable.) Where should I look? As I said, for most of the day everything flies. Then one or two servers get bogged down for no apparent reason. Rebooting the server clears the problem. However, nothing on the server seems to be in a bad way (i.e., CPU utilization is normal (approx. 5%), pings, disk space and service checks all pass, etc.) I don't know if I should even be looking on the CF server at this point. Any help would be appreciated. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Archives: http://www.houseoffusion.com/cf_lists/index.cfm?forumid=4 Subscription: http://www.houseoffusion.com/cf_lists/index.cfm?method=subscribe&forumid=4 FAQ: http://www.thenetprofits.co.uk/coldfusion/faq Signup for the Fusion Authority news alert and keep up with the latest news in ColdFusion and related topics. http://www.fusionauthority.com/signup.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4
