Re: [cfaussie] Helms and Peters are back at it again...
there's a lot of good stuff that these guys touch on using motorbikes, cooking, woodworking as vehicles to make the point. Ideas that are worthwhile in application development, analyst skills, project management, etc. Defiantly worth the half an hour or so to listen to. If ppl haven't heard the podcasts (including the back catalog) then do yourself a favour and ... as Molly Meldrum used to say... On Wed, Aug 10, 2011 at 12:13 PM, Sean Corfield seancorfi...@gmail.com wrote: I guess it says the same about me then :) Indeed, my iTunes had already downloaded the episode... I just hadn't checked new content for a few days. Glad they're back! On Tue, Aug 9, 2011 at 6:04 AM, Gavin Baumanis beauecli...@gmail.com wrote: I'm not sure what it exactly it says about me But... I was really excited to open iTunes today and find that Hal Helms and Jeff Peters have resurrected their long running podcast, Helms and Peters Out Loud. You can obtain further information at helmsandpeters.com and subscribe to the podcast via iTunes or the website. -- 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. -- 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.
Re: [cfaussie] Helms and Peters are back at it again...
... and don't forget about the 2 devs from down under http://www.2ddu.com/ On 10 August 2011 15:06, Barry Beattie barry.beat...@gmail.com wrote: there's a lot of good stuff that these guys touch on using motorbikes, cooking, woodworking as vehicles to make the point. Ideas that are worthwhile in application development, analyst skills, project management, etc. Defiantly worth the half an hour or so to listen to. If ppl haven't heard the podcasts (including the back catalog) then do yourself a favour and ... as Molly Meldrum used to say... On Wed, Aug 10, 2011 at 12:13 PM, Sean Corfield seancorfi...@gmail.com wrote: I guess it says the same about me then :) Indeed, my iTunes had already downloaded the episode... I just hadn't checked new content for a few days. Glad they're back! On Tue, Aug 9, 2011 at 6:04 AM, Gavin Baumanis beauecli...@gmail.com wrote: I'm not sure what it exactly it says about me But... I was really excited to open iTunes today and find that Hal Helms and Jeff Peters have resurrected their long running podcast, Helms and Peters Out Loud. You can obtain further information at helmsandpeters.com and subscribe to the podcast via iTunes or the website. -- 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. -- 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. -- *AJ Mercer* webonix:net strength=Industrial / http://webonix.net | webonix:org community=Open / http://webonix.org http://twitter.com/webonix Railo Community Manager http://www.getrailo.org/index.cfm/community/team/ -- 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.
Re: [cfaussie] Helms and Peters are back at it again...
Thanks for the plug! :) Kai is away at the moment, but we'll be back at it when he gets back. Mark On Wed, Aug 10, 2011 at 5:15 PM, AJ Mercer ajmer...@gmail.com wrote: ... and don't forget about the 2 devs from down under http://www.2ddu.com/ On 10 August 2011 15:06, Barry Beattie barry.beat...@gmail.com wrote: there's a lot of good stuff that these guys touch on using motorbikes, cooking, woodworking as vehicles to make the point. Ideas that are worthwhile in application development, analyst skills, project management, etc. Defiantly worth the half an hour or so to listen to. If ppl haven't heard the podcasts (including the back catalog) then do yourself a favour and ... as Molly Meldrum used to say... On Wed, Aug 10, 2011 at 12:13 PM, Sean Corfield seancorfi...@gmail.com wrote: I guess it says the same about me then :) Indeed, my iTunes had already downloaded the episode... I just hadn't checked new content for a few days. Glad they're back! On Tue, Aug 9, 2011 at 6:04 AM, Gavin Baumanis beauecli...@gmail.com wrote: I'm not sure what it exactly it says about me But... I was really excited to open iTunes today and find that Hal Helms and Jeff Peters have resurrected their long running podcast, Helms and Peters Out Loud. You can obtain further information at helmsandpeters.com and subscribe to the podcast via iTunes or the website. -- 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. -- 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. -- *AJ Mercer* webonix:net strength=Industrial / http://webonix.net | webonix:org community=Open / http://webonix.org http://twitter.com/webonix Railo Community Managerhttp://www.getrailo.org/index.cfm/community/team/ -- 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. -- E: mark.man...@gmail.com T: http://www.twitter.com/neurotic W: www.compoundtheory.com cf.Objective(ANZ) + Flex - Nov 17, 18 - Melbourne Australia http://www.cfobjective.com.au -- 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.
RE: [cfaussie] Re: How to load balance
I think you're correct because I am using so many session objects the server can't cope with the load; actually it's really only 3 per session but they each hold a collections of other objects; I've used this approach before for java stand alone apps and it has worked really well because the collections are in hashmaps so the memory is indexed; however it seems flawed on a web server because it's eating all the memory. I did find the following link to be really helpful in tuning the jvm and I set a scheduled job to run a runtime and system garbage collection when the heap space reached a 1gb. http://www.coldfusionmuse.com/index.cfm/2008/2/12/leaky.heap.jvm Assuming there is memory available the site works really well; I am looking at new designs; but to buy time I am also wondering about upgrading the server to 64bit and upgrading to CF9 enterprise; any thoughts or tips here? Thanks, Mat _ From: cfaussie@googlegroups.com [mailto:cfaussie@googlegroups.com] On Behalf Of Mark Mandel Sent: Wednesday, 10 August 2011 12:24 PM To: cfaussie@googlegroups.com Subject: Re: [cfaussie] Re: How to load balance Actually, they said they were using session scope - if your users suddenly ramp up, then that could easily explain the memory leak. Is there anything you could consolidate into a single in memory store in the application scope, rather than having it for every user? Mark On Wed, Aug 10, 2011 at 12:14 PM, daamsie pe...@travellerspoint.com wrote: You might want to look into using something other than the CF application scope to cache objects (assuming that's what you're using). We've had pretty good experience using memcached. Though with ehcache now integrated in CF, I'd probably be looking at that instead. Other than that, definitely look at JVM tuning. I'd agree - get someone else who knows it well to help you through that. It will save a lot of guesswork and you'll learn a lot through the process. On Aug 9, 12:26 pm, Mat mathew.say...@gmail.com wrote: Hi All, I am new to the group and was hoping someone can help me with a solution to the following; we have created an application using java and cold fusion; we do create a lot of Java objects that we hold in memory at the session level. We are getting an out of memory error; basically the heap space fills up; server slows to the point that it crashes. First thought is we have a memory leak; I am using jconsole, nice graphs but what is it really telling me; if anyone knows of a monitoring tool that will help me see if we have memory that is not being cleared that should be and what that memory is; would be appreciated? Second thought is we designed the application to hold a lot in memory to save time hitting the db; I wonder if we are just under resourced. We are running CF 8,0,1,195765 STD, Java 1.6.0_04, on a Windows 2003 32bit Svr. I do have a second server available; does anyone have instructions on how to setup load balancing so that I can have two servers sharing the load? Any help would be most appreciated? Many Thanks, Mat -- 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 mailto:cfaussie%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/cfaussie?hl=en. -- E: mark.man...@gmail.com T: http://www.twitter.com/neurotic W: www.compoundtheory.com cf.Objective(ANZ) + Flex - Nov 17, 18 - Melbourne Australia http://www.cfobjective.com.au -- 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. -- 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.
Re: [cfaussie] Re: How to load balance
Cf9 has a 64bit standard edition might be worth a go? Paul Kukiel On 10/08/2011, at 9:51 PM, Mathew Sayers mathew.say...@gmail.com wrote: I think you’re correct because I am using so many session objects the server can’t cope with the load; actually it’s really only 3 per session but they each hold a collections of other objects; I’ve used this approach before for java stand alone apps and it has worked really well because the collections are in hashmaps so the memory is indexed; however it seems flawed on a web server because it’s eating all the memory. I did find the following link to be really helpful in tuning the jvm and I set a scheduled job to run a runtime and system garbage collection when the heap space reached a 1gb. http://www.coldfusionmuse.com/index.cfm/2008/2/12/leaky.heap.jvm Assuming there is memory available the site works really well; I am looking at new designs; but to buy time I am also wondering about upgrading the server to 64bit and upgrading to CF9 enterprise; any thoughts or tips here? Thanks, Mat From: cfaussie@googlegroups.com [mailto:cfaussie@googlegroups.com] On Behalf Of Mark Mandel Sent: Wednesday, 10 August 2011 12:24 PM To: cfaussie@googlegroups.com Subject: Re: [cfaussie] Re: How to load balance Actually, they said they were using session scope - if your users suddenly ramp up, then that could easily explain the memory leak. Is there anything you could consolidate into a single in memory store in the application scope, rather than having it for every user? Mark On Wed, Aug 10, 2011 at 12:14 PM, daamsie pe...@travellerspoint.com wrote: You might want to look into using something other than the CF application scope to cache objects (assuming that's what you're using). We've had pretty good experience using memcached. Though with ehcache now integrated in CF, I'd probably be looking at that instead. Other than that, definitely look at JVM tuning. I'd agree - get someone else who knows it well to help you through that. It will save a lot of guesswork and you'll learn a lot through the process. On Aug 9, 12:26 pm, Mat mathew.say...@gmail.com wrote: Hi All, I am new to the group and was hoping someone can help me with a solution to the following; we have created an application using java and cold fusion; we do create a lot of Java objects that we hold in memory at the session level. We are getting an out of memory error; basically the heap space fills up; server slows to the point that it crashes. First thought is we have a memory leak; I am using jconsole, nice graphs but what is it really telling me; if anyone knows of a monitoring tool that will help me see if we have memory that is not being cleared that should be and what that memory is; would be appreciated? Second thought is we designed the application to hold a lot in memory to save time hitting the db; I wonder if we are just under resourced. We are running CF 8,0,1,195765 STD, Java 1.6.0_04, on a Windows 2003 32bit Svr. I do have a second server available; does anyone have instructions on how to setup load balancing so that I can have two servers sharing the load? Any help would be most appreciated? Many Thanks, Mat -- 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. -- E: mark.man...@gmail.com T: http://www.twitter.com/neurotic W: www.compoundtheory.com cf.Objective(ANZ) + Flex - Nov 17, 18 - Melbourne Australia http://www.cfobjective.com.au -- 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. -- 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. -- 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.
RE: [cfaussie] Re: How to load balance
Mat, I'd not say it's flawed, just a different beast compared to your prior experience. :-) In a standalone app, you don't likely have more than one user. In a web app, you can have dozens, hundreds, thousands, or tens of thousands. Consider especially that when you're storing info in sessions, then that is also not how many people are using the app now, but rather how many have used it over the timeframe of your session timeout. More than that, many don't realize that sessions are created anew for EVERY PAGE VISIT by a spider or bot, because they tend not to honor the cookie CF provides to track users. So it's not unusual to find CF tracking ten to hundreds times more sessions than you'd expect. If you're on CF 8 or 9 Enterprise or Developer edition, you can see how many sessions there are using the CF Server Monitor's Active sessions page, clicking the graph in its top right corner. If on another version of CF, you could use Aussie Mark Lynch's excellent free ServerStats tool. I link to that and discuss this whole problem more at this blog entry: http://www.carehart.org/blog/client/index.cfm/2009/1/22/tracking_count_of_se ssions_per_application Of course, if that link breaks over two lines, please reconnect it before saying it doesn't work. :-) Then consider as well what your session timeout is. The longer it is, and the more stuff you put in the session scope, and the more users/bots that visit, the more memory will be taken for sessions. And this memory cannot be GC'ed until it's no longer in use (the session times out). Sometimes another solution to a problem like this is lowering the session timeout (for the app, in the application.cfc/cfm or in the CF Admin if you rely on its default session timeout setting). Then, too, some go a step further to lower the session timeout specifically for requests that are deemed to spiders/bots. I won't elaborate this here until you know that's your issue and needed solution. Let us know if this info helps, Mat. /charlie arehart char...@carehart.org Providing fast, remote, on-demand troubleshooting services for CF (and CFBuilder) More at http://www.carehart.org/consulting From: cfaussie@googlegroups.com [mailto:cfaussie@googlegroups.com] On Behalf Of Mathew Sayers Sent: Wednesday, August 10, 2011 7:51 AM To: cfaussie@googlegroups.com Subject: RE: [cfaussie] Re: How to load balance I think you're correct because I am using so many session objects the server can't cope with the load; actually it's really only 3 per session but they each hold a collections of other objects; I've used this approach before for java stand alone apps and it has worked really well because the collections are in hashmaps so the memory is indexed; however it seems flawed on a web server because it's eating all the memory. I did find the following link to be really helpful in tuning the jvm and I set a scheduled job to run a runtime and system garbage collection when the heap space reached a 1gb. http://www.coldfusionmuse.com/index.cfm/2008/2/12/leaky.heap.jvm Assuming there is memory available the site works really well; I am looking at new designs; but to buy time I am also wondering about upgrading the server to 64bit and upgrading to CF9 enterprise; any thoughts or tips here? Thanks, Mat _ From: cfaussie@googlegroups.com [mailto:cfaussie@googlegroups.com] On Behalf Of Mark Mandel Sent: Wednesday, 10 August 2011 12:24 PM To: cfaussie@googlegroups.com Subject: Re: [cfaussie] Re: How to load balance Actually, they said they were using session scope - if your users suddenly ramp up, then that could easily explain the memory leak. Is there anything you could consolidate into a single in memory store in the application scope, rather than having it for every user? Mark On Wed, Aug 10, 2011 at 12:14 PM, daamsie pe...@travellerspoint.com wrote: You might want to look into using something other than the CF application scope to cache objects (assuming that's what you're using). We've had pretty good experience using memcached. Though with ehcache now integrated in CF, I'd probably be looking at that instead. Other than that, definitely look at JVM tuning. I'd agree - get someone else who knows it well to help you through that. It will save a lot of guesswork and you'll learn a lot through the process. On Aug 9, 12:26 pm, Mat mathew.say...@gmail.com wrote: Hi All, I am new to the group and was hoping someone can help me with a solution to the following; we have created an application using java and cold fusion; we do create a lot of Java objects that we hold in memory at the session level. We are getting an out of memory error; basically the heap space fills up; server slows to the point that it crashes. First thought is we have a memory leak; I am using jconsole, nice graphs but what is it really telling me; if anyone knows of a monitoring tool that will help me see if we have memory that is not being cleared that
Re: [cfaussie] CF 8 or 9 licence cost question
According the Adobe Australian Store, grade from CF 7 std or from CF 8 std to CF 9 Standard is $897.75 Chris -- Chris Velevitch Manager - Adobe Platform Users Group, Sydney m: 0415 469 095 www.apugs.org.au Adobe Platform Users Group, Sydney Topic: Developing Mobile Applications with the Flash Platform's newest tools. Date: 29th August 6pm for 6:30 start Details and RSVP on http://apugs.groups.adobe.com/index.cfm?event=post.displaypostid=37729 -- 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.
[cfaussie] Re: CF 8 or 9 licence cost question
On Aug 11, 10:16 am, Sean Corfield seancorfi...@gmail.com wrote: On Wed, Aug 10, 2011 at 4:52 PM, Stephen M sgmul...@gmail.com wrote: What does a standard CF9 licence cost these days? A quick google came up with $1500 from Apex software, I've never heard of them before. The US prices for upgrades are listed here:http://www.adobe.com/products/coldfusion/upgrade/ CFMX 7 Standard to CF 9 Standard should be $649 USD. Full price is $1,299 USD. The Adobe AU store quotes $893 AUD (inc GST) and $1,787 AUD (inc GST). -- Sean A Corfield -- (904) 302-SEAN An Architect's View --http://corfield.org/ World Singles, LLC. --http://worldsingles.com/ Railo Technologies, Inc. --http://www.getrailo.com/ Perfection is the enemy of the good. -- Gustave Flaubert, French realist novelist (1821-1880) I know this is probably ancient history for most of you, but are there any problems that I should be aware of (going from CF7 to CF9)? This is a MachII 1.5 app. - do I need to upgrade the MachII as well? -- 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.
Re: [cfaussie] Re: CF 8 or 9 licence cost question
On Wed, Aug 10, 2011 at 7:22 PM, Stephen M sgmul...@gmail.com wrote: I know this is probably ancient history for most of you, but are there any problems that I should be aware of (going from CF7 to CF9)? Can't answer that but... This is a MachII 1.5 app. - do I need to upgrade the MachII as well? ...Several frameworks needed an update to run on CF9 because it introduced a lot of new built-in functions. writeDump() and writeLog() were the two most common breakages. -- Sean A Corfield -- (904) 302-SEAN An Architect's View -- http://corfield.org/ World Singles, LLC. -- http://worldsingles.com/ Railo Technologies, Inc. -- http://www.getrailo.com/ Perfection is the enemy of the good. -- Gustave Flaubert, French realist novelist (1821-1880) -- 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.
RE: [cfaussie] Re: CF 8 or 9 licence cost question
Issues we faced are around UI components. If your using any of the UI elements from 7 such as flash forms etc there may be some rework. If not there shouldn't be anything too trick. You could run the trial and see if the app runs before purchase. Regards Dale Fraser http://dale.fraser.id.au http://cfmldocs.com http://learncf.com http://flexcf.com -Original Message- From: cfaussie@googlegroups.com [mailto:cfaussie@googlegroups.com] On Behalf Of Stephen M Sent: Thursday, 11 August 2011 12:22 PM To: cfaussie Subject: [cfaussie] Re: CF 8 or 9 licence cost question On Aug 11, 10:16 am, Sean Corfield seancorfi...@gmail.com wrote: On Wed, Aug 10, 2011 at 4:52 PM, Stephen M sgmul...@gmail.com wrote: What does a standard CF9 licence cost these days? A quick google came up with $1500 from Apex software, I've never heard of them before. The US prices for upgrades are listed here:http://www.adobe.com/products/coldfusion/upgrade/ CFMX 7 Standard to CF 9 Standard should be $649 USD. Full price is $1,299 USD. The Adobe AU store quotes $893 AUD (inc GST) and $1,787 AUD (inc GST). -- Sean A Corfield -- (904) 302-SEAN An Architect's View --http://corfield.org/ World Singles, LLC. --http://worldsingles.com/ Railo Technologies, Inc. --http://www.getrailo.com/ Perfection is the enemy of the good. -- Gustave Flaubert, French realist novelist (1821-1880) I know this is probably ancient history for most of you, but are there any problems that I should be aware of (going from CF7 to CF9)? This is a MachII 1.5 app. - do I need to upgrade the MachII as well? -- 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. -- 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.
[cfaussie] Re: How to load balance
Ah, the bots, yes! Definitely a likely candidate. We have our application set up so that bot sessions timeout almost immediately after being created. Without that, our server would crash in minutes. On Aug 11, 1:16 am, charlie arehart charlie_li...@carehart.org wrote: Mat, I'd not say it's flawed, just a different beast compared to your prior experience. :-) In a standalone app, you don't likely have more than one user. In a web app, you can have dozens, hundreds, thousands, or tens of thousands. Consider especially that when you're storing info in sessions, then that is also not how many people are using the app now, but rather how many have used it over the timeframe of your session timeout. More than that, many don't realize that sessions are created anew for EVERY PAGE VISIT by a spider or bot, because they tend not to honor the cookie CF provides to track users. So it's not unusual to find CF tracking ten to hundreds times more sessions than you'd expect. If you're on CF 8 or 9 Enterprise or Developer edition, you can see how many sessions there are using the CF Server Monitor's Active sessions page, clicking the graph in its top right corner. If on another version of CF, you could use Aussie Mark Lynch's excellent free ServerStats tool. I link to that and discuss this whole problem more at this blog entry: http://www.carehart.org/blog/client/index.cfm/2009/1/22/tracking_coun... ssions_per_application Of course, if that link breaks over two lines, please reconnect it before saying it doesn't work. :-) Then consider as well what your session timeout is. The longer it is, and the more stuff you put in the session scope, and the more users/bots that visit, the more memory will be taken for sessions. And this memory cannot be GC'ed until it's no longer in use (the session times out). Sometimes another solution to a problem like this is lowering the session timeout (for the app, in the application.cfc/cfm or in the CF Admin if you rely on its default session timeout setting). Then, too, some go a step further to lower the session timeout specifically for requests that are deemed to spiders/bots. I won't elaborate this here until you know that's your issue and needed solution. Let us know if this info helps, Mat. /charlie arehart char...@carehart.org Providing fast, remote, on-demand troubleshooting services for CF (and CFBuilder) More athttp://www.carehart.org/consulting From: cfaussie@googlegroups.com [mailto:cfaussie@googlegroups.com] On Behalf Of Mathew Sayers Sent: Wednesday, August 10, 2011 7:51 AM To: cfaussie@googlegroups.com Subject: RE: [cfaussie] Re: How to load balance I think you're correct because I am using so many session objects the server can't cope with the load; actually it's really only 3 per session but they each hold a collections of other objects; I've used this approach before for java stand alone apps and it has worked really well because the collections are in hashmaps so the memory is indexed; however it seems flawed on a web server because it's eating all the memory. I did find the following link to be really helpful in tuning the jvm and I set a scheduled job to run a runtime and system garbage collection when the heap space reached a 1gb. http://www.coldfusionmuse.com/index.cfm/2008/2/12/leaky.heap.jvm Assuming there is memory available the site works really well; I am looking at new designs; but to buy time I am also wondering about upgrading the server to 64bit and upgrading to CF9 enterprise; any thoughts or tips here? Thanks, Mat _ From: cfaussie@googlegroups.com [mailto:cfaussie@googlegroups.com] On Behalf Of Mark Mandel Sent: Wednesday, 10 August 2011 12:24 PM To: cfaussie@googlegroups.com Subject: Re: [cfaussie] Re: How to load balance Actually, they said they were using session scope - if your users suddenly ramp up, then that could easily explain the memory leak. Is there anything you could consolidate into a single in memory store in the application scope, rather than having it for every user? Mark On Wed, Aug 10, 2011 at 12:14 PM, daamsie pe...@travellerspoint.com wrote: You might want to look into using something other than the CF application scope to cache objects (assuming that's what you're using). We've had pretty good experience using memcached. Though with ehcache now integrated in CF, I'd probably be looking at that instead. Other than that, definitely look at JVM tuning. I'd agree - get someone else who knows it well to help you through that. It will save a lot of guesswork and you'll learn a lot through the process. On Aug 9, 12:26 pm, Mat mathew.say...@gmail.com wrote: Hi All, I am new to the group and was hoping someone can help me with a solution to the following; we have created an application using java and cold fusion; we do create a lot of Java objects that we hold in memory at the session level. We are getting an out
