Re: [asterisk-users] agi with java?
Lenz wrote: Hi Lee, we are a Java shop and our experience with Java has been much the one you say - it does scale pretty well and it is very solid. What I was trying to say is that Java is not very well suited to the classic, Unix-style, fire-up-process-and-let-it-die that goes for CGI/AGI programming. On the other side, I have no doubt that with an application server and FastAGI you can get quite a lot of bang for the buck. :) l. On Fri, 08 Jun 2007 18:07:50 +0200, Lee Jenkins [EMAIL PROTECTED] wrote: We have found that generally speaking, running the FastAGI server on the same machine as Asterisk yields better performance than launching separate exe processes through the dial plan. Completely anecdotal of course. This is careful research conducted over our entire 5 customer base... I get what you are saying, I was agreeing with you. :) We *were* writing all of our AGI as binary executables and even then, the FastAGI server that we eventually built still gets better performance vs. when we launched separate AGI per call from the dialplan. My guess is that it is easier on the system for an existing executable (FastAGI Server) to spawn threads of execution for short periods of time to handle (Fasg)AGI requests than it is to run separate executable AGI's instead. We're hoping that performance will be improved even more when we introduce pooling of common objects (db access for example). -- Warm Regards, Lee ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] agi with java?
Hi Lee, we are a Java shop and our experience with Java has been much the one you say - it does scale pretty well and it is very solid. What I was trying to say is that Java is not very well suited to the classic, Unix-style, fire-up-process-and-let-it-die that goes for CGI/AGI programming. On the other side, I have no doubt that with an application server and FastAGI you can get quite a lot of bang for the buck. :) l. On Fri, 08 Jun 2007 18:07:50 +0200, Lee Jenkins [EMAIL PROTECTED] wrote: We have found that generally speaking, running the FastAGI server on the same machine as Asterisk yields better performance than launching separate exe processes through the dial plan. Completely anecdotal of course. This is careful research conducted over our entire 5 customer base... -- Loway Research - Home of QueueMetrics http://queuemetrics.com ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] agi with java?
On 10 Jun 2007, at 13:29, Lenz wrote: Hi Lee, we are a Java shop and our experience with Java has been much the one you say - it does scale pretty well and it is very solid. What I was trying to say is that Java is not very well suited to the classic, Unix-style, fire-up-process-and-let-it-die that goes for CGI/AGI programming. On the other side, I have no doubt that with an application server and FastAGI you can get quite a lot of bang for the buck. :) l. Just to encourage folks who run a mile from the whole J2EE bloated mess.. You can write a very simple FastAGI server using asterisk-java in J2SE, and run it in just about any JVM. We have been very happy with it. Tim. ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] agi with java?
Hello Matthew, Java is not a great solution for AGIs because they are script you should fire up and terminate very fast, while the overhead of launching a JVM, loading all classes, etc, is pretty large. Also, you don't want multiple JVMs in parallel loading everything multiple times. This is not to say AGI is not feasible: you should look for FastAGI, where * connects to an external server with resident proceses, and that suits the Java model much better. Of course, if all you want to do is lookup the callerid on mysql or something just as trivial, go for a 20-line Perl script. Just my two eurocents, l. On Thu, 07 Jun 2007 23:32:12 +0200, Matthew Pease [EMAIL PROTECTED] wrote: Hi all - Searching for java agi in the mailing list archives turns up ancient posts. Anyone else using java for their AGI? How well is it working what are you using? My script is pretty simple, and I could write it with perl easy enough, but I just would feel better if I can keep most programming code for our system in java. Thank you- Matt -- Loway Research - Home of QueueMetrics http://queuemetrics.com ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] agi with java?
Lenz wrote: Hello Matthew, Java is not a great solution for AGIs because they are script you should fire up and terminate very fast, while the overhead of launching a JVM, loading all classes, etc, is pretty large. Also, you don't want multiple JVMs in parallel loading everything multiple times. This is not to say AGI is not feasible: you should look for FastAGI, where * connects to an external server with resident proceses, and that suits the Java model much better. Of course, if all you want to do is lookup the callerid on mysql or something just as trivial, go for a 20-line Perl script. We have found that generally speaking, running the FastAGI server on the same machine as Asterisk yields better performance than launching separate exe processes through the dial plan. Completely anecdotal of course. This is careful research conducted over our entire 5 customer base... -- Warm Regards, Lee ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
RE: [asterisk-users] agi with java?
Java is not a great solution for AGIs because they are script you should fire up and terminate very fast, while the overhead of launching a JVM, loading all classes, etc, is pretty large. Also, you don't want multiple JVMs in parallel loading everything multiple times. How about writing your AGIs in JSP? In that case, you could leave a VM (+Tomcat) running, and the AGIs would simply use the existing in-memory VM. Java does actually scale much better than many other environments once you take away the cost of instantiating the VM for each execution. Regards, Chris -- C.M. Bagnall, Director, Minotaur I.T. Limited For full contact details visit http://www.minotaur.it/chris.html This email is made from 100% recycled electrons ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
[asterisk-users] agi with java?
Hi all - Searching for java agi in the mailing list archives turns up ancient posts. Anyone else using java for their AGI? How well is it working what are you using? My script is pretty simple, and I could write it with perl easy enough, but I just would feel better if I can keep most programming code for our system in java. Thank you- Matt ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] agi with java?
Matthew Pease wrote: Hi all - Searching for java agi in the mailing list archives turns up ancient posts. Have a look at http://asterisk-java.org and the tutorial at http://asterisk-java.org/development/tutorial.html - it include a hello world AGI script in Java. =Stefan signature.asc Description: OpenPGP digital signature ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
