What makes you think this is the case? What version of CF are you on?
If you are on CF8, you can use either - snapshots via the server monitor, a tool like JConsole, or thread dumps to find out exactly what is causing the infinite loop. Mark On Tue, Jan 6, 2009 at 5:20 PM, Matthew <matthewbchamb...@gmail.com> wrote: > > Hi everyone > > From time to time our website appears to hand. I believe it is CF (or > JRun) chocking because each time it happens I can still connect to the > web server via FTP, RDP, DB access. When I look at the Task Manager > jrun.exe is using max CPU. If I restart the CF service or End Process > on jrun.exe everything recovers. > > I'm pretty sure I know which bit of code is causing the problem. It's > a web service call to a 3rd party (used quite a lot by users on the > website). Most of the time when the website hangs I can't browse to > the 3rd party's web service. I've tried setting timeouts on the web > service call by using CFINVOKE, CreateObject, CFOBJECT etc but no > improvement. I need to allow for up to 60s because some of the calls > are quite complex. > > I'm trying to work out why it's hanging. I suspect that because CF is > allowing 8 simaltaneous requests and each gets 60 seconds then once > all these slots are taken up everyone else goes on a queue and with > all that load the server appears to hang because it's in constant use > i.e. after 60 seconds user 1 gets his timeout so user 9 takes position > 8 and round and round it goes and it never stops because with constant > traffic taking up 8 request slots and all taking up resources for 60 > seconds it appears to hang. Does this make sense? > > So the question is: how do I save the server from getting into this > state. I'm thinking I need some sort of scheduled task which probes > the web service every 10 seconds to work out if it's up. Perhaps if it > times out (3 times just to be sure) I shut of the web service (which > means the rest of the website is still up). The scheduled task keeps > running until no timeout occurs and then it re-activates the web > service for everyone else. Has anyone been through something like this > before? How did you work around it? > > Cheers > Matthew > > > -- E: mark.man...@gmail.com W: www.compoundtheory.com --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "cfaussie" group. To post to this group, send email to cfaussie@googlegroups.com To unsubscribe from this group, send email to cfaussie+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/cfaussie?hl=en -~----------~----~----~----~------~----~------~--~---
