[OpenSIPS-Users] 回复： 回复： 回复： Dialog Concurrency Control Issue.

[jing]

hi,Bogdan.
  
 I just want to limit the total number of active dialog. And now I have 2 questions .
  
 I changed the script like this:
  
 if (is_method("INVITE")) {
                xlog("active dialog is $stat(active_dialogs)");
                xlog("dlgcount is $DLG_count");
                if ($stat(active_dialogs)>=1){
                sl_send_reply("503", "Service Unavailable");

                }
                # create dialog with timeout
                if ( !create_dialog("B") ) {
                        send_reply("500","Internal Server Error");
                        exit;
                }
                 setflag(ACC_DO); # do accounting
        }

 Then I started 3 dialog, they were all successful , but no 503 sent. The log showed:
  active dialog is 2
dlgcount is 2

  
 I used opensipsctl fifo command to show the dialog statistics, it showed 
 dialog:active_dialogs = 3.
 1.what is wrong in my script ?
 2. How to end the dialogs which have been active long time ,but have no response.
  
 Or is there other way to limit the total number of active dialog?
  
 I am a newbie to opensips,  would you please tell me more detailed advice?
 Very thanks!
 kind regards
  




------------------ 原始邮件 ------------------
发件人: "Bogdan-Andrei Iancu"<bogdan at opensips.org>; 
发送时间: 2014年7月15日(星期二) 下午4:43
收件人: "users"<users at lists.opensips.org>; "jing "<605507247 at qq.com>; 
主题: Re: [OpenSIPS-Users] 回复： 回复： Dialog Concurrency Control Issue.



Hi,

I see you added the missing "exit" after the sl_send_reply() and you do create the dialog for each INVITE (hopefully only for the initial ones :) ). 

What seems to be the exact problem now ?

Regards,
Bogdan-Andrei Iancu OpenSIPS Founder and Developer http://www.opensips-solutions.comOn 15.07.2014 05:21, jing wrote:

  hi,Schneur.
 Thanks for your advice.
 But I did put the check before  create_dialog("B")  in the original oprnsips.cfg:
  
 if (is_method("INVITE")) {
                xlog("active dialog is $stat(active_dialogs)");
                 if ($stat(active_dialogs)>=1){
                sl_send_reply("503", "Service Unavailable");
                exit;
                }
                # create dialog with timeout
                if ( !create_dialog("B") ) {
                        send_reply("500","Internal Server Error");
                        exit;
                }
                 setflag(ACC_DO); # do accounting
        }
  
  

 So what is wrong in the script?
 And I still want to know how to judge a call is "active_dialogs"?
 Thanks a lot.
  
 regards,
 jing

 ------------------ 原始邮 件 ------------------
  发件人: "Schneur Rosenberg";<rosenberg11219 at gmail.com>;
 发送时间: 2014年7月14日(星期一) 晚上6:25
 收件人: "OpenSIPS users mailling list"<users at lists.opensips.org>; 
 主题: Re: [OpenSIPS-Users]回复： Dialog Concurrency Control Issue.

 

 
You need to do this before the create_dialog() call
 On Jul 14, 2014 10:33 AM, "jing" <605507247 at qq.com> wrote:
  Thanks for your reply.But I have another question, I used  active_dialogs  in the cfg file as this:
  
 if (is_method("INVITE")) {
                if ($stat(active_dialogs)>=1){
                sl_send_reply("503", "Service Unavailable");
                }

  But it seems not right. 
 I use sipp to test the limit ,but when the value of active_dialogs aim to the number I set ,
 opensips sent 503,but  the value of active_dialogs sitll increase. 
 So I want to know how the value of this paramer comefrom.
 Or is there something wrong in my cfg document?
  
 regards,
 Jing

 

 

 ------------------ 原始邮 件 ------------------
  发件人: "Schneur Rosenberg [via OpenSIPS (Open SIP Server)]"<[hidden email]>; 
 发送时间: 2014年7月14日(星期一) 下午2:08
 收件人: "jing "<[hidden email]>; 
 主题: Re: Dialog Concurrency Control Issue.

 

 
Very simple, before creating a new dialog check how many open dialogs exist.
 On Jul 14, 2014 9:05 AM, "jing" <[hidden email]> wrote:
 hi,Bogdan


 I want to limit the total number of active dialogs ,what should I do ?

I found there are many questions about "Concurrent calls limitation " based
on per user, it's not what I need.

I appreciate your advice very much,  more detailed the better.

Thanks,
Regards,
jing



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