[SR-Users] Manage blacklisting on network errors

[Marat Gareev]

Hello,

Thank you for replying, but I don't understand how it will help me.

I already use ds_mark_dst() and know how it works. Problem is that I can't
control network errors with like this:
if (network_error() || timeout()) {
xlog("L_WARN", "Server $si:$sp has network problems and will be
blacklisted.\n");
ds_mark_dst("IP");
}

Marat

вт, 14 сент. 2021 г. в 13:33, Henning Westerholt <hw at skalatan.de>:

> Hello,
>
>
>
> you probably want to check the dispatcher module docs out for this
> ds_mark_dst(..) function. You find also some RPC commands to e.g. inspect
> on shell. You can also try the event-routes documented there to log some
> info.
>
>
>
>
> https://kamailio.org/docs/modules/stable/modules/dispatcher.html#dispatcher.f.ds_mark_dst
>
>
>
> Cheers,
>
>
>
> Henning
>
>
>
> --
>
> Henning Westerholt – https://skalatan.de/blog/
>
> Kamailio services – https://gilawa.com
>
>
>
> *From:* sr-users <sr-users-bounces at lists.kamailio.org> *On Behalf Of *Marat
> Gareev
> *Sent:* Thursday, September 9, 2021 8:02 PM
> *To:* Kamailio (SER) - Users Mailing List <sr-users at lists.kamailio.org>
> *Subject:* [SR-Users] Manage blacklisting on network errors
>
>
>
> Hello!
>
>
>
> I have a simple config for routing requests with failover and blacklisting
> on 408, 480 and 503 codes from servers.
>
>
>
> This is a part of config:
>
> *# Wrapper for relaying requests*
>
> *route[**RELAY**]* {
>
>
>
>   *# the base event routes*
>
>   t_on_branch("MANAGE_BRANCH");
>
>   t_on_reply("MANAGE_REPLY");
>
>   t_on_failure("MANAGE_FAILURE");
>
>
>
>   if (!t_relay()) {
>
>     sl_reply_error();
>
>   }
>
>   *exit*;
>
> }
>
>
>
> *# Manage incoming replies*
>
> *onreply_route[**MANAGE_REPLY**]* {
>
>   xlog("L_NOTICE", "$rr ($rs) [$cs] ($ci) $si:$sp - $ua\n");
>
>   if ( t_check_status("(503)|(408)|(480)") ) {
>
>     xlog("L_WARN", "Server will be blacklisted: $si:$sp ($rs)\n");
>
>   }
>
> }
>
>
>
> *# Manage failure routing cases*
>
> *failure_route[**MANAGE_FAILURE**]* {
>
>
>
>   if ( !t_check_status("(503)|(408)|(480)") ) {
>
>     *exit*;
>
>   }
>
>
>
>   ds_mark_dst("IP"); *# blacklist*
>
>
>
>   if (t_is_canceled()) *exit*;
>
>
>
>   if (!ds_next_domain()) {
>
>     send_reply("503", "Service Unavailable");
>
>     *exit*;
>
>   }
>
>
>
>   *route(**RELAY**)*;
>
> }
>
>
>
> If there is a timeout or network error on the server side, it is
> blacklisted. How can such cases be managed and how can they be logged?
> I didn't find this on the module page:
>
> https://www.kamailio.org/docs/modules/stable/modules/tm.html
>
>
>
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