[SR-Users] Siptrace and Kamailio "stress" test

[Jurijs Ivolga]

Hi,

For only UDP, you can try force_send_sock with UDP socket there.

Jurijs


On Wed, Nov 2, 2022 at 5:31 PM Igor Olhovskiy <igorolhovskiy at gmail.com>
wrote:

> Hello,
>
> Found an interesting scenario, maybe something could be done here.
> I have a siptrace module configured like
>
> modparam("siptrace", "duplicate_uri", "sip:<MY_HOMER_SERVER>:9060")
> modparam("siptrace", "hep_mode_on", 1)
> modparam("siptrace", "trace_to_database", 0)
> modparam("siptrace", "trace_on", 1)
> modparam("siptrace", "hep_version", 3)
> modparam("siptrace", "trace_mode", 1)
>
> When Kamailio is under stress test (sipflood via OPTIONS/TLS), with this
> settings it transfers all flood to HOMER server.
>
> At some point Kamailio just stops accepting any new TLS connections.
>
> Turning off siptrace solves this issue.
>
> As I got, siptrace module is not changing protocol of the message (means
> not converting TCP/UDP) or so. Could it be possible, that at some point
> siptrace "eats" all TCP connections (especially if remote HOMER is down or
> not answering) which leads Kamailio to stop processing any new connections?
>
> And is it possible to send HEP traffic only via UDP to prevent this?
>
> Yes, sure other option is to trace only "legal" traffic
>
> --
> Best regards,
> Ihor (Igor)
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