Sounds like those slow threads stack up at the wrong time for you. The first step here is to see if the CF coding can be fixed or sped up. Jumping into the JVM settings at this point isn't going to solve the core issue. As more traffic hits the box, this problem would only reappear. You need to work this bottleneck from the top down. From the CF code down to the final point which is JVM tuning.
What exactly are those slow threads doing? FTP? Webservice calls? John Mason [EMAIL PROTECTED] 770.337.8363 www.FusionLink.com - ColdFusion and Flex hosting Now offering ColdFusion 8 Enterprise hosting FREE Subversion hosting -----Original Message----- From: J W [mailto:[EMAIL PROTECTED] Sent: Monday, September 17, 2007 2:25 PM To: CF-Talk Subject: Re: Server hanging. Wierd problems. HELP! I can't tell exactly what happened at the time of last crash to coincide since the trial of SeeFusion I downloaded had a 2hr time limit on it.. However I just installed fusion reactor trial on the system On this server 8 Max simultaneous requests 100mb max post data JVM Arguments 512 Max Heap size (MB) -server -Dsun.io.useCanonCaches=false -XX:MaxPermSize=128m - Dcoldfusion.rootDir={application.home}/../ - Dcoldfusion.libPath={application.home}/../lib -Xdebug -Xrunjdwp:transport=dt_socket,server=y,address=28999,suspend=n On the fusion reactor side: I have a butload of slow request, but none are stuck. Alot of the slow requests are waiting for communication with various 3rd party interfaces to complete, so the templates can take a long time to generate. Slow requests range from 4,000 to 35000ms. most are in the 4-5k range. In the first 20 minutes of uptime here. I have not gone above 8 simultanious requests, mostly 3-5. Recent slow pages was up to 5. Average Request time various between 1100 and 2800ms Currently using 25mb of the heap. 4% memory for now. 23 minutes of uptime 1300 requests.. Where can we go from here? On 9/17/07, Brad Wood <[EMAIL PROTECTED]> wrote: > > What was the memory heap size? In other words, was it 70% of 150 > Megs, or 70% of 1,500 megs? > > In ColdFusion administrator, what is the maximum number of > simultaneous requests set to? (default is 15 to 20 I think). > > How many requests were running at the time the error was encountered? > > ~Brad > > -----Original Message----- > From: J W [mailto:[EMAIL PROTECTED] > Sent: Monday, September 17, 2007 12:37 PM > To: CF-Talk > Subject: Re: Server hanging. Wierd problems. HELP! > > I had Seefusion running. NOTHING looked out of the ordinary. I had > some slow processes, but that expected for some of the third party > calls that I have to do on those. Memory was like 70=80%, Is there > anything specific I should be looking for using either SeeFusion or > Fusion reactor? > > > On 9/17/07, Brad Wood <[EMAIL PROTECTED]> wrote: > > > > I agree with using SeeFusion or Fusion Rector to see what is going on. > > > > In the mean time, cfstat can at least show you if you are getting > backup > > up requests. > > > > ~Brad > > > > -----Original Message----- > > From: John Mason [mailto:[EMAIL PROTECTED] > > Sent: Monday, September 17, 2007 11:30 AM > > To: CF-Talk > > Subject: RE: Server hanging. Wierd problems. HELP! > > > > You need to use seefusion or fusionreactor to see what exactly is > > happening. > > Sounds like a hung cf page that is filling up your available CF > threads. > > > > > > > > > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Check out the new features and enhancements in the latest product release - download the "What's New PDF" now http://download.macromedia.com/pub/labs/coldfusion/cf8_beta_whatsnew_052907.pdf Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:288613 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4
