[SR-Users] Dispatcher stops working

[David Villasmil]

Hello

I would start by looking at the logs when that happens. The gateway would
only get marked "ip" when there is no reply by the gateway or when it
replies with 500. Also OPTIONs not being replied promptly.
Maybe add some logging right before ds_mark_dst("ip").

Hope that helps,

Regards,

David Villasmil
email: david.villasmil.work at gmail.com
phone: +34669448337


On Wed, Sep 16, 2020 at 11:40 AM Sergio Charrua <sergio.charrua at voip.pt>
wrote:

> Hello,
>
> Using Kamailio 5.1.6 for load balancing & failover,
> I noticed that from time to time, and very rarely, the dispatcher module
> stops dispatching to the Asterisk servers.
> I have to execute a "kamcmd dispatcher reload" for it to (re)start working.
>
> This is my dispatcher.list :
> 1 sip:10.19.XXX.YYY:5060 0 1 duid=sipgw01;maxload=100
> 1 sip:10.19.XXX.YYY:5060 0 2 duid=sipgw02;maxload=100
> 1 sip:10.19.XXX.YYY:5060 0 3 duid=sipgw03;maxload=100
> 1 sip:10.19.XXX.YYY:5060 0 4 duid=sipgw04;maxload=100
>
> This is my dispatch routes:
> # Dispatch requests
> route[DISPATCH] {
>
>         if(!ds_select_dst("1", "10","4"))
>         {
>                 xlog("L_INFO","no destination selected from dispatcher
> list!");
>                 send_reply("404", "No destination");
>                 exit;
>         }
>
>         xlog("L_INFO","going to <$ru> via <$du>\n");
>
>         t_on_failure("RTF_DISPATCH");
>         route(RELAY);
>
>         exit;
>
> }
>
> # Sample failure route
> failure_route[RTF_DISPATCH] {
>         if (t_is_canceled()) {
>                 exit;
>         }
>         xlog("L_INFO", "Media server $du failed to answer, selecting other
> one!");
>         # next DST - only for 500 or local timeout
>         if ( t_check_status("500") || (t_branch_timeout() &&
> !t_branch_replied()) )
>         {
>                 #mark the destination Inactive and Probing
>                 ds_mark_dst("ip");
>                 if(ds_next_dst())
>                 {
>                         t_on_failure("RTF_DISPATCH");
>                         route(RELAY);
>                         exit;
>                 }
>         }
> }
>
> I suspect that the ds_mark_dst("ip") command in RTF_DISPACTH is the cause.
> Is there any think I can improve on this? Or any know bug with the
> dispatcher in Kamailio 5.1.6 version?
>
> Thanks in advance,
>
> *Sérgio Charrua*
>
>
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