[SR-Users] How to unload previously loaded destinations in the case of applying multiple ds_select_domain

[Daniel-Constantin Mierla]

Hello,

delete the xavps based on the names you set via modparams xavp_dst and
xavp_ctx.

Cheers,
Daniel

On 30.07.21 11:14, Serdar GÜÇLÜER wrote:
> Hello all,
>
> I have a trouble that is related to the way of usage of dispatcher module.
>
> I am working with Kamailio 5.3.2 and using dispatcher module as load
> balancer to route calls to the media gateways.
>
> My dispatching routes are below as simply,
>
> route[DISPATCH] {
>         if(ds_select_domain("2", "4")) {
>                 route(MYRELAY);
>         } else {
>                 send_reply("503","Service Unavailable - No MGW");
>                 exit;
>         }
> }
> route[MYRELAY] {
>         t_on_failure("MYFAILURE");
>         if(!t_relay()) {
>                 sl_reply_error();
>         }
>         exit;
> }
> failure_route[MYFAILURE] {
>         route(NATMANAGE);
>         revert_uri();
>         if (t_is_canceled()) {
>                 exit;
>         }
>         if ($T_reply_code == 408 || $T_reply_code == 503) {
>                 if(ds_next_domain()) {
>                         route(MYRELAY);
>                 } else {
>                         send_reply("503","Service Unavailable");
>                         exit;
>                 }
>         } else {
>                 if(ds_select_domain("6", "4")) {
>                         route(MYVMRELAY);
>                 } else {
>                         send_reply(486,"Busy");
>                         exit;
>                 }
>         }
> }
> route[MYVMRELAY] {
>         t_on_failure("MYVMFAILURE");
>         if(!t_relay()) {
>                 sl_reply_error();
>         }
>         exit;
> }
> failure_route[MYVMFAILURE] {
>         route(NATMANAGE);
>         revert_uri();
>         if (t_is_canceled()) {
>                 exit;
>         }
>         if(ds_next_domain()) {
>                 route(MYVMRELAY);
>         } else {
>                 send_reply("503","Service Unavailable");
>                 exit;
>         }
> }
>
>
> I have multiple media gateways(setid=2) and voicemail
> servers(setid=6). As can be seen from the configuration,
> after first routing, for transaction reply code except 408 or 503, I
> am routing call to the voicemail server using dispatcher.
> In that phase, dispatcher module is remembering previously loaded
> destinations that come from first ds_select_domain
> and module try to route these destinations in the case that all
> voicemail servers are unavailable.
> So basically, I want to unload all destinations comes from previous
> ds_select_domain.
>
> From the documentation, i tried ds_load_update and ds_load_unset
> methods but not worked for me.
>
> Is there any way to overcome that problem or any right usages of these
> methods.
>
> Thank you,
>
> Serdar
>
>
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-- 
Daniel-Constantin Mierla -- www.asipto.com
www.twitter.com/miconda -- www.linkedin.com/in/miconda

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