As far as I can remember JConsole will just run on Java5+. That being said you should be able to run it on a Java 5 JVM and hook it remotely to inspect an app on 1.4 - I'm pretty sure though that you'd be limited in which information you can get.
There's also a knowledgebase article somewhere on Adobe.com how to create a thread dump. Cheers Kai > > 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 >>> _________________________________________________ Kai Koenig - Ventego Creative Ltd ph: +64 4 476 6781 - mob: +64 21 928 365 / +61 450 132 117 web: http://www.ventego-creative.co.nz blog: http://www.bloginblack.de --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
