[SR-Users] Race conditions upon quick reinvite

Henning Westerholt hw at skalatan.de
Tue Aug 24 15:31:55 CEST 2021


this should give you some ideas, e.g. just adding a sight delay to the Re-INVITE In Kamailio.




Henning Westerholt – https://skalatan.de/blog/
Kamailio services – https://gilawa.com<https://gilawa.com/>

From: sr-users <sr-users-bounces at lists.kamailio.org> On Behalf Of David VILLAUME
Sent: Tuesday, August 24, 2021 3:12 PM
To: Kamailio (SER) - Users Mailing List <sr-users at lists.kamailio.org>
Subject: [SR-Users] Race conditions upon quick reinvite

We encounter sometimes reinvite from some provider really quickly after 200 OK ACK so sometime there a race conditions where the re-invite exits Kamailio before the ACK leading to some Freeswitch “500 Overlapping Requests”.

[cid:image001.png at 01D798FD.2A666360]

I tried to catch the 500 on failure-route unsuccessfully as transaction is already established.

Do you have any idea on how I could deal with this behavour ?

Running 5.3.6 with 8 childs
modules used :(tm + dialog)
No costly action performed on ack that can explain slowliness.


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