Ian, Doing triage I always look at (in order).
1) client vars - are they stored in the registry? If so you could have an issue deleting that that "shows up" as the purge process starts hitting actual values to attempt to delete. 2) DB issues - Trouble on the DB spells trouble for the CF Server for most aps - even though CF gets the blame :) Look for locks and blocks. After that I start looking pot luck of other things.... -Mark -----Original Message----- From: Ian Skinner [mailto:h...@ilsweb.com] Sent: Wednesday, January 20, 2010 3:38 PM To: cf-talk Subject: ColdFusion|JRun CPU and|or memory problem. Any good information on how to track down what is causing a ColdFusion server to behave badly. The symptoms we have to date: 1) Starting January 5th, our Windows 2003, ColdFusion Web Server will suddenly jump from under 5% CPU usage to an average over 50% with frequent spikes to 80%, 90% and over. 2) When this happens the JRun process for our main JRun process will be running with over 600,000kb of memory. 3) Restarting this ColdFusion instances resets the server back to it's normal 5% CPU usage. 4) When I point the Administrator monitor at the server nothing seems to be obviously wrong 5) *EXCEPT* The monitor will sometimes report an Application Scope of nearly 821,000,000,000,000kb. Yes, that is over 100 petabytes of data according to Wolfram-Alpha. I am pretty sure we do not have that much memory on this server. The weird thing is that there does not seem to be a correlation between that impossible memory spike and the problem with the server. I have been able to see the spike twice since I have started monitoring things yesterday. Once this occurred during a problem period, once it did not. Using the monitor and looking at the various log files, I can not find any clear smoking gun, so I am looking for advice on how one my track down an elusive problem like this. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Want to reach the ColdFusion community with something they want? Let them know on the House of Fusion mailing lists Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:329861 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4
