I don't believe JConsole will natively hook into Java 1.4. Sounds like you're going to doing thread dumps.
Do a google search for them, and you will find several articles. Mark On Wed, Jan 7, 2009 at 9:24 AM, Matthew <matthewbchamb...@gmail.com> wrote: > > Hi guys, > > Sorry, I should have given more info. > > @Steve: I'm not sure if it's a CF web service but I'm pretty sure it > isn't. I think it may be Java. > > @Mark: not sure which point you were refering to with your first > question? It's running on a CF7 server. So I'm guessing I'll need to > use JConsole. Where do I start? > > Cheers > Matthew > > On Jan 7, 7:42 am, "Mark Mandel" <mark.man...@gmail.com> wrote: >> 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 > > > -- 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 -~----------~----~----~----~------~----~------~--~---
