29 Nov
2023
29 Nov
'23
3:24 p.m.
Hi Ilie,
I think the confusion is about behaviour rather than transaction reality. A transaction
suspended by evapi_async_relay() does not generate any productive replies back to the UAC,
it's true.
But it does go away, as Daniel says. Setting an example `fr_timer` value of 4 sec:
loadmodule "tm"
modparam("tm", "fr_timer", 4000)
Then placing a test call at ~14:20:05, while echoing the output of RPC `tm.stats`:
bash-5.1# while : ; do date; kamcmd tm.stats | grep -i current; echo; sleep 1; done
Wed Nov 29 14:20:01 UTC 2023
current: 0
Wed Nov 29 14:20:02 UTC 2023
current: 0
Wed Nov 29 14:20:03 UTC 2023
current: 0
Wed Nov 29 14:20:04 UTC 2023
current: 0
Wed Nov 29 14:20:05 UTC 2023
current: 1
Wed Nov 29 14:20:06 UTC 2023
current: 1
Wed Nov 29 14:20:07 UTC 2023
current: 1
Wed Nov 29 14:20:08 UTC 2023
current: 1
Wed Nov 29 14:20:09 UTC 2023
current: 0
Wed Nov 29 14:20:10 UTC 2023
current: 0
Wed Nov 29 14:20:11 UTC 2023
current: 0
If I reset the `fr_timer` value to 10 sec, we can confirm that this is the modulator:
modparam("tm", "fr_timer", 1000)
Wed Nov 29 14:23:50 UTC 2023
current: 0
Wed Nov 29 14:23:51 UTC 2023
current: 0
Wed Nov 29 14:23:52 UTC 2023
current: 1
Wed Nov 29 14:23:53 UTC 2023
current: 1
Wed Nov 29 14:23:54 UTC 2023
current: 1
Wed Nov 29 14:23:55 UTC 2023
current: 1
Wed Nov 29 14:23:56 UTC 2023
current: 1
Wed Nov 29 14:23:57 UTC 2023
current: 1
Wed Nov 29 14:23:58 UTC 2023
current: 1
Wed Nov 29 14:23:59 UTC 2023
current: 1
Wed Nov 29 14:24:00 UTC 2023
current: 1
Wed Nov 29 14:24:01 UTC 2023
current: 1
Wed Nov 29 14:24:02 UTC 2023
current: 0
Wed Nov 29 14:24:03 UTC 2023
current: 0
I think we can also agree that the timing of the transaction reaping is a bit
"approximate".
But equally well, it is quite true that the reaping is silent and there is no 408 Request
Timeout reply backwards to the UAC.
-- Alex
On 29 Nov 2023, at 08:31, Ilie Soltanici via sr-users
<sr-users(a)lists.kamailio.org> wrote:
HI Daniel,
That would be great if it were possible, unfortunately, the code I attempted doesn't
seem to be working. Here's the code snippet I tried:
route[TEST] {
t_set_fr(1000);
t_on_failure("CONTACT_LOOKUP_FAILED");
evapi_async_relay({"field":"value"})
}
failure_route[CONTACT_LOOKUP_FAILED] {
xlogl("L_INFO","Failed Transaction ID
[$T(id_index):$T(id_label)]\n");
route(RELAY);
exit;
}
I'm wondering if there might be something I'm overlooking?
Regards,
On Wed, 29 Nov 2023 at 12:42, Daniel-Constantin Mierla <miconda(a)gmail.com> wrote:
Hello,
a suspended transaction is kept silently for the duration of the timeout (see
t_set_fr()), then it fails and jumps to a failure route (if you set one) -- maybe you can
leverage this mechanism somehow.
Cheers,
Daniel
On 29.11.23 12:53, Ilie Soltanici via sr-users wrote:
--
Alex Balashov
Principal Consultant
Evariste Systems LLC
Web: https://evaristesys.com
Tel: +1-706-510-6800
Hello,
I'm trying to use the evapi_async_relay function from the evapi module, however,I
don't want the transaction to be suspended for more than 1 second.
For instance, if there's no response from the external application within this time
frame, I want the script to continue and remove that transaction from memory.
One potential approach I am considering is to add suspended transactions to a hash table
with a timestamp value. Then, using rtimer module, I could periodically parse this table
every second and process the results, but I'm not sure how efficient is that.
Maybe you know other alternative, more efficient solutions (from a performance point of
view) that could achieve the same goal?
Any insights or recommendations would be greatly appreciated.
Thank you.
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Daniel-Constantin Mierla (@ asipto.com)
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Kamailio Consultancy and Development Services
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