Re: [SR-Users] Best practice for Kamailio "cluster" front for many TLS connections

Hello,

for the records, there is a minimal config example in the repo:

* https://github.com/kamailio/kamailio/blob/master/misc/examples/mixed/kamaili...

Maybe it is useful for a starting point, although I think it targets use of UDP.

Cheers, Daniel

On 13.09.21 08:46, Markus Monka wrote:

Hi,

we did some testing with ipvs but unfortunately where not been able to pursue it further. Today we use NAPTR/SRV Records for balancing to several TCP Loadbalancers.

Best Regards  Markus

On Mon, Sep 13, 2021 at 8:19 AM Henning Westerholt <hw@skalatan.de mailto:hw@skalatan.de> wrote:

Hello,

 

I would suggest having a look at the presentation from Armen, and
probably others from past KamailioWorld:

 

https://www.youtube.com/c/KamailioWorld/search?query=anycast
<https://www.youtube.com/c/KamailioWorld/search?query=anycast>

 

Cheers,

 

Henning

 

-- 

Henning Westerholt – https://skalatan.de/blog/
<https://skalatan.de/blog/>

Kamailio services – https://gilawa.com <https://gilawa.com/>

 

*From:* sr-users <sr-users-bounces@lists.kamailio.org
<mailto:sr-users-bounces@lists.kamailio.org>> *On Behalf Of
*Angelo Sipper
*Sent:* Sunday, September 12, 2021 11:44 AM
*To:* Kamailio (SER) - Users Mailing List
<sr-users@lists.kamailio.org <mailto:sr-users@lists.kamailio.org>>
*Subject:* Re: [SR-Users] Best practice for Kamailio "cluster"
front for many TLS connections

 

Sorry Fred,

 

I believe, my question was wrongly asked.

The correct question would be, Is there a guide for Kamailio and
Anycast that anyone could point me to read?

 

But, my main question is about the DMQ on two Kamailio nodes and
what happens in case one of them reloads. Are the dialogs and
useloc synced automatically on reload? Is there a template config
to read about this?

 

Kind Regards,

Angelo

 

Στις Κυρ, 12 Σεπ 2021 στις 1:30 π.μ., ο/η Fred Posner
<fred@palner.com <mailto:fred@palner.com>> έγραψε:

    To be clear here, this is the kamailio list and you’ve been
    referencing opensips documentation. 

    -- Fred

    (via mobile)

    Matrix: @fred:matrix.lod.com <http://matrix.lod.com>

     



        On Sep 11, 2021, at 5:46 PM, Angelo Sipper
        <sippro97@gmail.com <mailto:sippro97@gmail.com>> wrote:

        

        HI,

         

        Thanks for all the suggestions. I will look into
        glb-director and I will come back in case I need more help.

        As I understand for same DC and two Kamailio's on
        active/standby with keepalived is fine, at least for the
        load we are expecting now.

         

        Now one question on DMQ. Up today with the one only
        Kamailio we are using the dialog db_mode 1 to have all
        dialogs in db, in order not to loose the dialogs in case
        of reload. When we will have 2 Kamailio's with DMQ sync
        for all dialogs, in case of one Kamailios reloads it will
        get all active dialogs from the other Kamailio without the
        need to have the DB to handle this and also delay the
        system. Is this the correct approach?

         

        Last, do you know any updated doc for Anycast  - Kamailio
        like the one here for the older version 2.4 ?

        https://blog.opensips.org/2018/03/21/full-anycast-support-in-opensips-2-4/
        <https://blog.opensips.org/2018/03/21/full-anycast-support-in-opensips-2-4/>

         

        Kind Regards,

        Angelo

         

         

        Στις Σάβ, 11 Σεπ 2021 στις 11:03 μ.μ., ο/η Henning
        Westerholt <hw@skalatan.de <mailto:hw@skalatan.de>> έγραψε:

            Hello Angelo,

             

            it is possible to use Kamailio with an anycast setup,
            there are two talks in the last years KamailioWorld
            conference about more details.

             

            But if we are only talking about several thousand
            clients, it’s not needed for a start. Its certainly
            possible to operate this just with one front-end
            Kamailio in an activate/passive setup, many people do
            this.

            E.g., look to this (rather old) performance tests,
            1.000.000 contacts with TLS on one server
            http://sip-router.org/wiki/performance/v3.0-capacity
            <http://sip-router.org/wiki/performance/v3.0-capacity>

             

            Kamailio has no cluster module, you probably want to
            investigate the DMQ module which offers clustering
            capabilities.

             

            Cheers,

             

            Henning

             

             

            -- 

            Henning Westerholt – https://skalatan.de/blog/
            <https://skalatan.de/blog/>

            Kamailio services – https://gilawa.com
            <https://gilawa.com/>

             

            *From:* sr-users <sr-users-bounces@lists.kamailio.org
            <mailto:sr-users-bounces@lists.kamailio.org>> *On
            Behalf Of *Angelo Sipper
            *Sent:* Saturday, September 11, 2021 8:52 PM
            *To:* Kamailio (SER) - Users Mailing List
            <sr-users@lists.kamailio.org
            <mailto:sr-users@lists.kamailio.org>>
            *Subject:* Re: [SR-Users] Best practice for Kamailio
            "cluster" front for many TLS connections

             

            Hi Fred,

             

            Thanks for the suggestions.

            I have been looking to all these presentations mostly
            from Rasvan but, he mostly suggesting clusterer module
            combined with anycast which I cannot locate on current
            version 5.x. Can you help me on what is the
            replacement for this? 

             

            Kind Regards,

            Angelo

             

            Στις Σάβ, 11 Σεπ 2021 στις 6:04 μ.μ., ο/η Fred Posner
            <fred@palner.com <mailto:fred@palner.com>> έγραψε:

                On 9/11/21 10:11 AM, Angelo Sipper wrote:
                > Hello,
                >
                > We are thinking to use kamailio to fully support
                our current voip service.
                > [snip] What would be the best kamailio
                > module and topology as solution to this requirement?
                >
                When designing a Kamailio deployment for several
                thousand plus clients,
                there are many factors to consider... including
                network topology, future
                growth plans, high availability, redundancy, etc.

                The quick answer top your question is: It depends.

                There are many discussions and presentations made
                over the years
                including some posted to the kamailioworld youtube
                channel
                (youtube,com/c/kamailioworld) as well as slides
                regarding large scale
                deployments (such as 1&1).

                With best regards,

                Fred Posner | palner.com <http://palner.com>
                Matrix: @fred:matrix.lod.com <http://matrix.lod.com>
                o: +1 (212) 937-7844


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