The first thing I look at when people say they have a memory leak is the session variables. More than once I've identified the cause of a clients problems in a few minutes by looking at how much data they put into session variables, how long the timeout is, and how often they are hit by bots. Think of it this way. A bot comes to the site. It gets a session. The session exists for X time. The same bot comes to a different page. It gets a NEW session which exists for X time. It might look like a small amount of memory for a session but on really big sites (a million pages), it builds fast and can crash hard.
http://www.blogoffusion.com/112805-pseudomemory-leak.cfm -- Michael Dinowitz Lead Author - Adobe Coldfusion Anthology http://www.amazon.com/Adobe-Coldfusion-Anthology-Michael-Dinowitz/dp/1430272155/?tag=houseoffusion On Fri, May 14, 2010 at 5:24 PM, Qing Xia <txiasum...@gmail.com> wrote: > > Hi, > > I am new to ColdFusion server monitoring, so I am trying to get some ideas > here to get me move in the right direction. > > We have a situation where our production ColdFusion applications are using > more and more memory until they bring the server to a halt. I was informed > (I am new here) that our systems administrator actually wrote a batch script > to automatically restart the ColdFusion server every Sunday morning to avoid > this very problem. Despite this, the memory leaks still make it necessary to > manually restart the ColdFusion server from time to time (could be every > couple of weeks). > > CF8 comes with pretty decent server monitoring tools including memory > monitoring but I dare not run it in production since it is such a memory > monster. Without purchasing other monitoring software like SeeFusion or > BlueDragon, what are my options here? I see that there is an option in > CFAdmin to periodically recycle JVM memory once it reaches a threshold, but > I am a little too concerned to use it--it is not really like fixing the > problem. > > Any idea will be most appreciated! > > Thanks, > > Qing Xia > > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Order the Adobe Coldfusion Anthology now! http://www.amazon.com/Adobe-Coldfusion-Anthology-Michael-Dinowitz/dp/1430272155/?tag=houseoffusion Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:333712 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/groups/cf-talk/unsubscribe.cfm
