9 Sep
2021
9 Sep
'21
9:02 p.m.
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 ($rs)\n");
}
}
# Manage failure routing cases
failure_route[MANAGE_FAILURE] {
if ( !t_check_status("(503)|(408)|(480)") ) {
exit;
}
ds_mark_dst("IP"); # blacklist
if (t_is_canceled()) exit;
if (!ds_next_domain()) {
send_reply("503", "Service Unavailable");
exit;
}
route(RELAY);
}
If there is a timeout or network error on the server side, it is
blacklisted. How can such cases be managed and how can they be logged?
I didn't find this on the module page:
https://www.kamailio.org/docs/modules/stable/modules/tm.html
14 Sep
14 Sep
1:33 p.m.
Hello,
you probably want to check the dispatcher module docs out for this ds_mark_dst(..)
function. You find also some RPC commands to e.g. inspect on shell. You can also try the
event-routes documented there to log some info.
https://kamailio.org/docs/modules/stable/modules/dispatcher.html#dispatcher…
Cheers,
Henning
--
Henning Westerholt – https://skalatan.de/blog/
Kamailio services – https://gilawa.com<https://gilawa.com/>
From: sr-users <sr-users-bounces(a)lists.kamailio.org> On Behalf Of Marat Gareev
Sent: Thursday, September 9, 2021 8:02 PM
To: Kamailio (SER) - Users Mailing List <sr-users(a)lists.kamailio.org>
Subject: [SR-Users] Manage blacklisting on network errors
Hello!
I have a simple config for routing requests with failover and blacklisting on 408, 480 and
503 codes from servers.
This is a part of config:
# Wrapper for relaying requests
route[RELAY] {
# the base event routes
t_on_branch("MANAGE_BRANCH");
t_on_reply("MANAGE_REPLY");
t_on_failure("MANAGE_FAILURE");
if (!t_relay()) {
sl_reply_error();
}
exit;
}
# Manage incoming replies
onreply_route[MANAGE_REPLY] {
xlog("L_NOTICE", "$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
2:02 p.m.
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(a)skalatan.de>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…
Cheers,
Henning
--
Henning Westerholt – https://skalatan.de/blog/
Kamailio services – https://gilawa.com
*From:* sr-users <sr-users-bounces(a)lists.kamailio.org> *On Behalf Of *Marat
Gareev
*Sent:* Thursday, September 9, 2021 8:02 PM
*To:* Kamailio (SER) - Users Mailing List <sr-users(a)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
1165
days inactive
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days old
2 comments
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participants (2)
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Henning Westerholt -
Marat Gareev