[OpenSIPS-Users] Dialogs get stuck

[Bogdan-Andrei Iancu]

Hi Erik,

Dialog states are :

#define DLG_STATE_UNCONFIRMED  1
#define DLG_STATE_EARLY        2
#define DLG_STATE_CONFIRMED_NA 3
#define DLG_STATE_CONFIRMED    4
#define DLG_STATE_DELETED      5


Dialog may cumulate in state 3 or 4 (ongoing calls) because of a missing 
(or poorly routed) BYE request. Maybe you should check if you have the 
BYE for the dialogs that do not exist on CPE but do on opensips.

Again, missing BYE is a common case for having some left-over dialogs.

Regards,
Bogdan


Erik Versaevel wrote:
> Hi all,
>
> i'm attempting to build a loadbalancer from opensips to loadbalance requests to an cluster of asterisk machines.
> Users register to opensips and loadbalances the requests for those users to the asterisk machines.
>
> One of the checks opensips has to perform on a call is if there aren't more concurrent calls from this user than
> his bandwidth would allow. I'm using a slightly modified version of the example on the website (mainly using other AVP's to
> set the maximum allowed simultanious calls).
> The problem i'm experiencing is that dialogs seem to get stuck in opensips, the CPE on the customers side doesn't list a call, the asterisk
> machine on the other end of the call doesn't list a call but opensips does, this results in the CPE beeing unreachable because opensips
> thinks it has reached the maximum allowed calls.
>
> I i look at the dialog state i find the following:
> opensipsctl fifo dlg_list | grep state | sort | uniq -c
>       1         state:: 1
>       4         state:: 2
>      14         state:: 3
>      78         state:: 4
>       5         state:: 5
> Is there any documentation on those states?
>
> My routing logic uses loose route afaik so all request within the dialog should pass my opensips server:
>
>         if (has_totag()) {
>                 if (loose_route()) {
>                         if (is_method("INVITE")) {
>                                 record_route();
>                         route(1);
> 		} else {
> 		if ( is_method("ACK") ) {
>                                 if ( t_check_trans() ) {
>                                         t_relay();
>                                         exit;
>                                 } else {
>                                         exit;
>                                 }
>                         }
>                         if (is_method("CANCEL"))
>                         {
>                                 if (t_check_trans())
>                                         t_relay();
>                                 exit;
>                         }
>                         sl_send_reply("404","Not here - seq no loose routing");
>                 }
>                 exit;
>         }
>
>
> I could send you my complete config if that would help, but it's mostly the default config with some tweaks (to loadbalance calls to an asterisk
> cluster and then send the calls from asterisk to the end users with a maximum number of concurrent calls
>
> Kind regards,
>
> Erik
>
>
> _______________________________________________
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> Users at lists.opensips.org
> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>
>   


-- 
Bogdan-Andrei Iancu
www.voice-system.ro