[sr-dev] [tracker] Comment added: tm:branch-failure event_route is not executed on all branch failures

[sip-router]

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FS#296 -  tm:branch-failure event_route is not executed on all branch failures
User who did this - Juha Heinanen (jh)

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unfortunately i need to reopen this task.  i started to do more tests and and branch failure route execution is not deterministic.  closer examination of daniel's test output showed that branch failure router was not executed in that test either.  attached is complete test config.  i use sipsak to send request to it like this:

sipsak -s sip:foo at 127.0.0.1:5060

first time i got:

May 25 14:21:23 siika sip-proxy[6697]: ERROR: <script>: ===== main route block
May 25 14:21:23 siika sip-proxy[6697]: ERROR: <script>: ===== after t_newtrans()
May 25 14:21:23 siika sip-proxy[6697]: ERROR: tm [../../forward.h:216]: msg_send(): msg_send: ERROR: tcp_send failed
May 25 14:21:23 siika sip-proxy[6697]: ERROR: tm [t_fwd.c:1592]: t_send_branch(): ERROR: t_send_branch: sending request on branch 0 failed
May 25 14:21:23 siika sip-proxy[6697]: ERROR: tm [t_fwd.c:1595]: t_send_branch(): putting branch 0 on hold 
May 25 14:21:23 siika sip-proxy[6697]: ERROR: <script>: ===== t relay return code: 1
May 25 14:21:23 siika sip-proxy[6696]: ERROR: <script>: ===== main route block
May 25 14:21:24 siika sip-proxy[6698]: ERROR: <script>: ===== main route block
May 25 14:21:26 siika sip-proxy[6695]: ERROR: <script>: ===== main route block
May 25 14:21:28 siika sip-proxy[6708]: ERROR: <script>: ==== failure route block

that is, branch failure block was not executed.

second time 20 sec later i got:

May 25 14:21:44 siika sip-proxy[6694]: ERROR: <script>: ===== main route block
May 25 14:21:44 siika sip-proxy[6694]: ERROR: <script>: ===== after t_newtrans()
May 25 14:21:44 siika sip-proxy[6694]: ERROR: tm [../../forward.h:216]: msg_send(): msg_send: ERROR: tcp_send failed
May 25 14:21:44 siika sip-proxy[6694]: ERROR: tm [t_fwd.c:1592]: t_send_branch(): ERROR: t_send_branch: sending request on branch 0 failed
May 25 14:21:44 siika sip-proxy[6694]: ERROR: tm [t_fwd.c:1595]: t_send_branch(): putting branch 0 on hold 
May 25 14:21:44 siika sip-proxy[6694]: ERROR: <script>: ===== t relay return code: 1
May 25 14:21:45 siika sip-proxy[6693]: ERROR: <script>: ===== main route block
May 25 14:21:46 siika sip-proxy[6692]: ERROR: <script>: ===== main route block
May 25 14:21:48 siika sip-proxy[6691]: ERROR: <script>: ===== main route block
May 25 14:21:49 siika sip-proxy[6708]: ERROR: <script>: ==== branch failure route block
May 25 14:21:49 siika sip-proxy[6708]: ERROR: <script>: ==== failure route block

that is, branch failure route block was executed.

-- juha

complete config used in test:

loadmodule "pv"
loadmodule "xlog"

modparam("tm", "fr_timer", 5000)
modparam("tm", "local_ack_mode", 2)
modparam("tm", "failure_reply_mode", 3)
modparam("tm", "failure_exec_mode", 1)

route {
xlog("===== main route block\n");
t_newtran();
xlog("===== after t_newtrans()\n");
$ru = "sip:foo at 127.0.0.1:9;transport=tcp";
t_on_failure("x");
t_on_branch_failure("x");
set_forward_no_connect();
t_relay();
$var(rc) = $rc;
xlog("===== t relay return code: $rc\n");
exit;
}

failure_route[x] {
xlog("==== failure route block\n");
exit;
}

event_route[tm:branch-failure:x] {
xlog("==== branch failure route block\n");
}


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