[SR-Users] Is DMQ now the recommended way to do things?

[* Paolo Visintin - evosip.cloud]

Hello Charles,
thanks for fast fixing, tomorrow morning we will test and give you back a
follow up!

Thanks!

*Paolo Visintin*
*CTO*
evosip.cloud
[image: Risultati immagini per evosip]


Il giorno gio 21 feb 2019 alle ore 21:46 Charles Chance <
charles.chance at sipcentric.com> ha scritto:

> Hello Paolo,
>
> This should fix your issue:
>
> https://github.com/kamailio/kamailio/commit/a176ad4fb4167e21b01974e6a5caba330b1d7e14
>
> Let me know so it can be merged.
>
> Best,
>
> Charles
>
> On Thu, 21 Feb 2019 at 20:14, * Paolo Visintin - evosip.cloud
> <paolo.visintin at evosip.cloud> wrote:
>
>> Hello Henning,
>> Due to some analysis (thanks for the activity to Enrico Bandiera and
>> Giacomo Vacca) we found a bug in dmq module , internally made a quick and
>> dirty patch and opened a issue on GitHub !
>>
>>
>> Cheers
>>
>> Il giorno sab 26 gen 2019 alle 19:19 * Paolo Visintin - evosip.cloud
>> <paolo.visintin at evosip.cloud> ha scritto:
>>
>>>
>>> Hello Henning,
>>> Correctly understood, this is exactly what I've experienced (kamailio
>>> 5.2.0)
>>> I'll absolutely make a new lab-test and strace  !
>>>
>>> Thanks for your suggestion!
>>> Best regards
>>>
>>>
>>>
>>> Il giorno sab 26 gen 2019 alle ore 19:05 Henning Westerholt <
>>> hw at kamailio.org> ha scritto:
>>>
>>>> Am Samstag, 26. Januar 2019, 19:00:32 CET schrieb * Paolo Visintin -
>>>> > I'm using DMQ in order to share :
>>>> > - htable
>>>> > - usrloc
>>>> >
>>>> > for usrloc seems everything working as expected.
>>>> >
>>>> > on htable I have noticed, after some stresstest made with sipp (25
>>>> cps /
>>>> > 600 concurrent calls) that one of the nodes (or sometimes both) eat a
>>>> lot
>>>> > of cpu (300%) after stresstest ended [all processes idle except f4 dmq
>>>> > handlers]; I tried also to change some parameters on dmq module like
>>>> > worker_usleep with no changes at all.
>>>>
>>>> Hello Paolo,
>>>>
>>>> just commenting on the first issue:
>>>>
>>>> So I understood you correctly, after the stress-test you observe a not
>>>> ending
>>>> CPU load on the Kamailio server, even without load?
>>>>
>>>> Maybe you can have a look on the CPU consuming processes by attaching
>>>> e.g.
>>>> "strace" to them at the next occasion, to see what they are doing.
>>>>
>>>> Best regards,
>>>>
>>>> Henning
>>>>
>>>> > At last, using kamailio in a kubernetes system I have several kamailio
>>>> > instances that pops-up and then tiers down with different ips; for
>>>> this
>>>> > reason dmq seems not able to delete peers, adding, for every defunct
>>>> node a
>>>> > warning like this :
>>>> > router-3 17(34) ERROR: dmq [notification_peer.c:599]:
>>>> > notification_resp_callback_f(): deleting server
>>>> > sip:172.28.1.211:5062;status=active
>>>> > because of failed request
>>>> > router-1 router-sr 17(33) ERROR: dmq [notification_peer.c:599]:
>>>> > notification_resp_callback_f(): deleting server
>>>> > sip:172.28.1.213:5062;status=active
>>>> > because of failed request
>>>> >
>>>> > Il giorno sab 26 gen 2019 alle ore 01:43 Alex Balashov <
>>>> >
>>>> > abalashov at evaristesys.com> ha scritto:
>>>> > > I think the realistic answer is that it's getting to be that way. I
>>>> > > think DMQ is now the recommended way to share usrloc and htable
>>>> across
>>>> > > multiple hosts. DMQ+dialog is still a work in progress. Not sure
>>>> about
>>>> > > DMQ+some other new stuff.
>>>> > >
>>>> > > On Fri, Jan 25, 2019 at 04:21:43PM +0000, Canuck . wrote:
>>>> > > > Before DMQ there were other ways to do similar things.  Is DMQ now
>>>> > > > considered the best way? Assuming I am using recent stable?
>>>> > > >
>>>> > > > Are there any good guides on clustering Kamailio?  I am not
>>>> finding a
>>>> > > > lot of good info on that subject.  Specifically, for multi
>>>> datacenter
>>>> > > > active active where things like floating IP's and keepalived are
>>>> not
>>>> > > > really an option.
>>>>
>>>> --
>>>> Henning Westerholt - https://skalatan.de/blog/
>>>> Kamailio services - https://skalatan.de/services
>>>> Kamailio security assessment - https://skalatan.de/de/assessment
>>>>
>>> --
>>
>> paolo visintin
>> direttore tecnico
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> --
> *Charles Chance*
> Managing Director
>
> t. 0330 120 1200    m. 07932 063 891
>
> Sipcentric Ltd. Company registered in England & Wales no. 7365592. Registered
> office: Faraday Wharf, Innovation Birmingham Campus, Holt Street,
> Birmingham Science Park, Birmingham B7 4BB.
>
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