[SR-Users] Homer7 and Kamailio 5.3

Thu Feb 3 15:20:44 CET 2022

Hi James an Angelo,

most of the time my homer or hepic servers are in different subnets.
So that arp think sounds good to me.

@Angelo Take a look at the HEP Fidelity Proxy, it's capable to be in the
middle between your kamailio and the hep-server and can store the HEP
packets if your hep-server is unavailable.
After the hep-server (homer 7, hepic, whatever) is available again it sends
the stored data automatically to the hep-server.

https://github.com/ivlovric/HFP/

James Browne <james at frideo.com> schrieb am Do., 3. Feb. 2022, 12:26:

> I've encountered a very similar problem in the past.The siptrace module
> uses UDP and does not expect a response, so it can be confusing that
> kamailio's behavior changes depending on whether the homer server is online.
>
> The problem I've seen in the past is that when kamailio and a statsd
> server are in the same IP subnet, and the statds server goes offline, an
> ARP request is made whenever traffic is to be sent, and this ARP request is
> blocking until it times out (a few seconds). It blocks all workers because
> they all want to send a UDP packet and all have to wait.
>
> If this is what's going on, then moving the siptrace server to a different
> subnet should resolve the problem.
>
> James
>
>
> On Wed, 2 Feb 2022 at 21:43, Angelo Sipper <sippro97 at gmail.com> wrote:
>
>> Hi,
>>
>> I have the exact same configuration with two workers and same syntax.
>> It works fine until I shut down homer. After that Kamailio stop
>> precessing any traffic and all clients try to register as they are
>> disconnected.
>>
>> Kind Regards,
>> Angelo
>>
>> On Wed, Feb 2, 2022, 8:45 PM Karsten Horsmann <khorsmann at gmail.com>
>> wrote:
>>
>>> Hi,
>>>
>>> try to define an extra sendsocket.
>>>
>>> And add an listen directive for that sendsocket.  Sorry for the
>>> formating wrote this on my smartphone.
>>>
>>> Works for me with an similar setup and 5.3
>>>
>>> # capture node or webhomer target
>>> #!ifdef WITH_HOMER
>>> #!substdef "!MY_HOMER_CAPTURE!sip:MY_HOMER_IP_ADDR:MY_HOMER_PORT!g"
>>> #!substdef "!MY_LOCAL_SENDSOCK!sip:MY_PRV_IP:MY_LOCAL_SEND_PORT!g"
>>> #!substdef "!MY_LOCAL_SENDLISTEN!udp:MY_PRV_IP:MY_LOCAL_SEND_PORT!g"
>>> #!endif
>>>
>>>
>>> #!ifdef WITH_HOMER
>>> #Siptrace
>>> modparam("siptrace", "force_send_sock", "MY_LOCAL_SENDSOCK")
>>> # local interface from where to send the duplicated traffic
>>> modparam("siptrace", "duplicate_uri", "MY_HOMER_CAPTURE")
>>> modparam("siptrace", "hep_mode_on", 1) # enable/disable Homer
>>> encapsulate mode
>>> modparam("siptrace", "hep_version", 3) # HEPv3 the timestamp and capture
>>> agent ID will be included in the HEP header
>>> modparam("siptrace", "hep_capture_id", MY_HOMER_CAPTURE_ID) # capture
>>> agent id Limitation: 32-bit for HEPv3.
>>> modparam("siptrace", "trace_to_database", 0) # trace to database
>>> modparam("siptrace", "trace_on", 1) # enable/disable trace
>>> modparam("siptrace", "trace_mode", 1) # default 0, if 1 then you dont
>>> need call siptrace flag or sip_trace()
>>> #!endif
>>>
>>> # sendsocket for homer
>>> #!ifdef WITH_HOMER
>>> socket_workers=2
>>> listen=MY_LOCAL_SENDLISTEN
>>> #!endif
>>>
>>> Henning Westerholt <hw at gilawa.com> schrieb am Mi., 2. Feb. 2022, 18:44:
>>>
>>>> Hello,
>>>>
>>>>
>>>>
>>>> any feedback regarding my previous question about log files, errors?
>>>>
>>>>
>>>>
>>>> Cheers,
>>>>
>>>>
>>>>
>>>> Henning
>>>>
>>>>
>>>>
>>>> --
>>>>
>>>> Henning Westerholt – https://skalatan.de/blog/
>>>>
>>>> Kamailio services – https://gilawa.com
>>>>
>>>>
>>>>
>>>> *From:* sr-users <sr-users-bounces at lists.kamailio.org> *On Behalf Of *Angelo
>>>> Sipper
>>>> *Sent:* Wednesday, February 2, 2022 5:45 PM
>>>> *To:* Kamailio (SER) - Users Mailing List <sr-users at lists.kamailio.org>
>>>> *Subject:* Re: [SR-Users] Homer7 and Kamailio 5.3
>>>>
>>>>
>>>>
>>>> Hi,
>>>>
>>>>
>>>>
>>>> Memory on the system is 8GB and on Kamailio we have SHM 4096 and PKG
>>>> 32. Each of these VM handles only a few hundred of concurrent calls and
>>>> each VM has a few hundred of TLS user registrations.
>>>>
>>>> Kamailio uses IP to send the traffic to Homer and not domain name.
>>>>
>>>>
>>>>
>>>> Any ideas how to solve this issue?
>>>>
>>>>
>>>>
>>>> Kind Regards,
>>>>
>>>> Angelo
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> On Tue, Feb 1, 2022, 8:43 PM Nick F <nik.oloakt at gmail.com> wrote:
>>>>
>>>> Hello,
>>>>
>>>>
>>>>
>>>> Do use domain name as destination for homer?
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> On Mon, Jan 31, 2022, 23:12 Henning Westerholt <hw at gilawa.com> wrote:
>>>>
>>>> Hello,
>>>>
>>>>
>>>>
>>>> Interesting observation. Do you see anything related to this error
>>>> period in the log files? Maybe out of memory errors etc..?
>>>>
>>>>
>>>>
>>>> Cheers,
>>>>
>>>>
>>>>
>>>> Henning
>>>>
>>>>
>>>>
>>>> --
>>>>
>>>> Henning Westerholt – https://skalatan.de/blog/
>>>>
>>>> Kamailio services – https://gilawa.com
>>>>
>>>>
>>>>
>>>> *From:* sr-users <sr-users-bounces at lists.kamailio.org> *On Behalf Of *Angelo
>>>> Sipper
>>>> *Sent:* Monday, January 31, 2022 12:32 PM
>>>> *To:* Kamailio (SER) - Users Mailing List <sr-users at lists.kamailio.org>
>>>> *Subject:* Re: [SR-Users] Homer7 and Kamailio 5.3
>>>>
>>>>
>>>>
>>>> Hi,
>>>>
>>>>
>>>>
>>>> Any ideas on this topic?
>>>>
>>>> Anyone with same behavior?
>>>>
>>>>
>>>>
>>>> Regards,
>>>>
>>>> Angelo
>>>>
>>>>
>>>>
>>>> On Thu, Jan 27, 2022, 9:18 PM Angelo Sipper <sippro97 at gmail.com> wrote:
>>>>
>>>> Hi to all,
>>>>
>>>>
>>>>
>>>> We have a Kamailio 5.3 that sends all traffic to a homer7 using
>>>> siptrace module with parameters force_send_sock and hep_mode_on,1 and
>>>> hep_version,3 and trace_mode,1. Everything works fine getting all traffic
>>>> to Homer7 but, in case Homer7 is not reachable, Kamailio then no longer
>>>> accepts traffic or registrations and it is like it crashes. When we revive
>>>> Homer7 and is it again reachable accepting traffic, Kamailio then works
>>>> again fine without any restart or actions.
>>>>
>>>> Any ideas why this may be happening? Is there anything we need to add
>>>> to the config to avoid this behavior as having Homer7 now is a single point
>>>> of failure for Kamailio?
>>>>
>>>>
>>>>
>>>> Thank you!
>>>>
>>>>
>>>>
>>>> Kind Regards,
>>>>
>>>> Angelo
>>>>
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