[SR-Users] event_route[tm:local-response] only executes a few times

5 Jul 2023

Hello,

I'm writing a 302 redirect server and wanting to capture some events on all replies,
so I'm trying to do this in event_route[tm:local-response], but I noticed that the
event route is only called a few times for the first few requests, and then never gets
executed again.  This is the simplest case in which I can reproduce the issue:

#!KAMAILIO

loadmodule "pv"
loadmodule "tm"
loadmodule "xlog"

route {
    xinfo("[$rm $ci-$cs] Src:[$si:$sp] RURI:[$ru] To:[$tu] From:[$fu]\n");

    t_send_reply("404", "Not Found");
    exit;
}

event_route[tm:local-response] {
    xcrit("[$rm $ci-$cs] tm:local-response replied locally\n");
}

If I start Kamailio with kamailio -ddDDeE it has 8 children.  If I use sipp to send 10
requests, this is what I see in the kamailio logs. The critical line in the event route is
only printed four times.  This is tested on 5.7.0 and 5.6.4

9(66) INFO: <script>: [INVITE 1-14@172.26.0.3-1<mailto:1-14@172.26.0.3-1>]
Src:[172.26.0.3:5060] RURI:[sip:service@172.26.0.2:5060] To:[sip:service@172.26.0.2:5060]
From:[sip:sipp@172.26.0.3:5060]
9(66) CRITICAL: <script>: [INVITE 1-14@172.26.0.3-1<mailto:1-14@172.26.0.3-1>]
tm:local-response replied locally
10(67) INFO: <script>: [ACK 1-14@172.26.0.3-1<mailto:1-14@172.26.0.3-1>]
Src:[172.26.0.3:5060] RURI:[sip:service@172.26.0.2:5060] To:[sip:service@172.26.0.2:5060]
From:[sip:sipp@172.26.0.3:5060]
11(68) INFO: <script>: [INVITE 2-14@172.26.0.3-1<mailto:2-14@172.26.0.3-1>]
Src:[172.26.0.3:5060] RURI:[sip:service@172.26.0.2:5060] To:[sip:service@172.26.0.2:5060]
From:[sip:sipp@172.26.0.3:5060]
11(68) CRITICAL: <script>: [INVITE
2-14@172.26.0.3-1<mailto:2-14@172.26.0.3-1>] tm:local-response replied locally
12(69) INFO: <script>: [ACK 2-14@172.26.0.3-1<mailto:2-14@172.26.0.3-1>]
Src:[172.26.0.3:5060] RURI:[sip:service@172.26.0.2:5060] To:[sip:service@172.26.0.2:5060]
From:[sip:sipp@172.26.0.3:5060]
13(70) INFO: <script>: [INVITE 3-14@172.26.0.3-1<mailto:3-14@172.26.0.3-1>]
Src:[172.26.0.3:5060] RURI:[sip:service@172.26.0.2:5060] To:[sip:service@172.26.0.2:5060]
From:[sip:sipp@172.26.0.3:5060]
13(70) CRITICAL: <script>: [INVITE
3-14@172.26.0.3-1<mailto:3-14@172.26.0.3-1>] tm:local-response replied locally
14(71) INFO: <script>: [ACK 3-14@172.26.0.3-1<mailto:3-14@172.26.0.3-1>]
Src:[172.26.0.3:5060] RURI:[sip:service@172.26.0.2:5060] To:[sip:service@172.26.0.2:5060]
From:[sip:sipp@172.26.0.3:5060]
15(72) INFO: <script>: [INVITE 4-14@172.26.0.3-1<mailto:4-14@172.26.0.3-1>]
Src:[172.26.0.3:5060] RURI:[sip:service@172.26.0.2:5060] To:[sip:service@172.26.0.2:5060]
From:[sip:sipp@172.26.0.3:5060]
15(72) CRITICAL: <script>: [INVITE
4-14@172.26.0.3-1<mailto:4-14@172.26.0.3-1>] tm:local-response replied locally
16(73) INFO: <script>: [ACK 4-14@172.26.0.3-1<mailto:4-14@172.26.0.3-1>]
Src:[172.26.0.3:5060] RURI:[sip:service@172.26.0.2:5060] To:[sip:service@172.26.0.2:5060]
From:[sip:sipp@172.26.0.3:5060]
9(66) INFO: <script>: [INVITE 5-14@172.26.0.3-1<mailto:5-14@172.26.0.3-1>]
Src:[172.26.0.3:5060] RURI:[sip:service@172.26.0.2:5060] To:[sip:service@172.26.0.2:5060]
From:[sip:sipp@172.26.0.3:5060]
10(67) INFO: <script>: [ACK 5-14@172.26.0.3-1<mailto:5-14@172.26.0.3-1>]
Src:[172.26.0.3:5060] RURI:[sip:service@172.26.0.2:5060] To:[sip:service@172.26.0.2:5060]
From:[sip:sipp@172.26.0.3:5060]
11(68) INFO: <script>: [INVITE 6-14@172.26.0.3-1<mailto:6-14@172.26.0.3-1>]
Src:[172.26.0.3:5060] RURI:[sip:service@172.26.0.2:5060] To:[sip:service@172.26.0.2:5060]
From:[sip:sipp@172.26.0.3:5060]
12(69) INFO: <script>: [ACK 6-14@172.26.0.3-1<mailto:6-14@172.26.0.3-1>]
Src:[172.26.0.3:5060] RURI:[sip:service@172.26.0.2:5060] To:[sip:service@172.26.0.2:5060]
From:[sip:sipp@172.26.0.3:5060]
13(70) INFO: <script>: [INVITE 7-14@172.26.0.3-1<mailto:7-14@172.26.0.3-1>]
Src:[172.26.0.3:5060] RURI:[sip:service@172.26.0.2:5060] To:[sip:service@172.26.0.2:5060]
From:[sip:sipp@172.26.0.3:5060]
14(71) INFO: <script>: [ACK 7-14@172.26.0.3-1<mailto:7-14@172.26.0.3-1>]
Src:[172.26.0.3:5060] RURI:[sip:service@172.26.0.2:5060] To:[sip:service@172.26.0.2:5060]
From:[sip:sipp@172.26.0.3:5060]
15(72) INFO: <script>: [INVITE 8-14@172.26.0.3-1<mailto:8-14@172.26.0.3-1>]
Src:[172.26.0.3:5060] RURI:[sip:service@172.26.0.2:5060] To:[sip:service@172.26.0.2:5060]
From:[sip:sipp@172.26.0.3:5060]
16(73) INFO: <script>: [ACK 8-14@172.26.0.3-1<mailto:8-14@172.26.0.3-1>]
Src:[172.26.0.3:5060] RURI:[sip:service@172.26.0.2:5060] To:[sip:service@172.26.0.2:5060]
From:[sip:sipp@172.26.0.3:5060]
9(66) INFO: <script>: [INVITE 9-14@172.26.0.3-1<mailto:9-14@172.26.0.3-1>]
Src:[172.26.0.3:5060] RURI:[sip:service@172.26.0.2:5060] To:[sip:service@172.26.0.2:5060]
From:[sip:sipp@172.26.0.3:5060]
10(67) INFO: <script>: [ACK 9-14@172.26.0.3-1<mailto:9-14@172.26.0.3-1>]
Src:[172.26.0.3:5060] RURI:[sip:service@172.26.0.2:5060] To:[sip:service@172.26.0.2:5060]
From:[sip:sipp@172.26.0.3:5060]
11(68) INFO: <script>: [INVITE 10-14@172.26.0.3-1<mailto:10-14@172.26.0.3-1>]
Src:[172.26.0.3:5060] RURI:[sip:service@172.26.0.2:5060] To:[sip:service@172.26.0.2:5060]
From:[sip:sipp@172.26.0.3:5060]
12(69) INFO: <script>: [ACK 10-14@172.26.0.3-1<mailto:10-14@172.26.0.3-1>]
Src:[172.26.0.3:5060] RURI:[sip:service@172.26.0.2:5060] To:[sip:service@172.26.0.2:5060]
From:[sip:sipp@172.26.0.3:5060]

Kaufman

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[SR-Users] event_route[tm:local-response] only executes a few times