[Freeswitch-users] (yet another?) freeswitch load balancer
Regis M
regis.freeswitch.org at tornad.net
Tue Dec 1 19:02:06 MSK 2015
Thanks Marcus, it's that, and more clear :)
Instead, there's no need for Floating IP. I want to configure with round
robin DNS. So request can hit proxy1(ip1) or proxy2 (ip2) , the requests
are proxyed to the same Freeswitch...
>I'd really like to check this out since I am "all-in" to node.js and
kamailio seems rather obscure to me.
+1
Regards,
2015-12-01 16:47 GMT+01:00 Avi Marcus <avi at avimarcus.net>:
> I think what Regis M wants to know -- and I'm curious -- is how to
> configure like so:
>
> Set up your load balancer on two different machine, with a floating IP.
> When requests come in, it forwards them to the list of FS servers.
>
> The point of the statelessness is that if the floating IP is switched at *any
> *moment, you don't lose *any *calls since it's "stateless" and the SIP
> Dialog contains all the necessary information.
>
> I'd really like to check this out since I am "all-in" to node.js and
> kamailio seems rather obscure to me.
>
>
> -Avi Marcus
>
> On Tue, Dec 1, 2015 at 5:02 PM, Dave Horton <dave at dchorton.com> wrote:
>
>> I’m not sure I completely understand your desired setup — when you say
>> “same config available on two different IPs”, are you talking about having
>> two freeswitch servers available as potential targets on two different
>> IPs? Or the proxy running on a multi-homed host that has two different
>> IPs? (Or two instances of the proxy running on different IPs but with the
>> same config?)
>>
>> In any case, to be a load-balancing proxy really means that you need to
>> be at least transaction stateful — so I don’t think you are actually
>> looking for a stateless proxy.
>>
>> To the extent you want to modify the proxy to change destinations at any
>> time (i.e. to switch new calls to a different freeswitch without informing
>> customers), this proxy will let you do that. You simply would update the
>> configuration file to add your new freeswitch server IP address and
>> associated information, and (if desired) remove the old one. You do not
>> need to restart anything either — changes like that to the config file are
>> automatically noticed and taken into affect immediately.
>>
>> Dave
>>
>> On Dec 1, 2015, at 9:52 AM, Regis M <regis.freeswitch.org at tornad.net>
>> wrote:
>>
>> What I need is to have a frontal proxy with same config available on 2
>> differents IPs.
>>
>> Both of them send request to the same Freeswitch based on config rules.
>>
>> Then, if I change the config and reload both proxy, I could use another
>> Freeswitch without informing customers.
>>
>> The running calls could be lose.
>>
>> IP failover with no proxy and 1 freeswitch is not an option for me..
>>
>> The proxy need to act as nginx for web... He choose destination based on
>> request rules..
>>
>>
>> So for me I thnik I need a Stateless proxy. But I'm not interested by
>> the call failover potential...
>> But Your first definition sounds good for me..
>>
>> Regards,
>>
>>
>> 2015-12-01 15:36 GMT+01:00 Dave Horton <dave at dchorton.com>:
>>
>>> When people talk about stateful or stateless there can be different
>>> interpretations, so I will try to be specific:
>>>
>>> Call stateful (or stateless): meaning whether the proxy remains in the
>>> dialog after a successful INVITE transaction (e.g. to receive subsequent
>>> BYE message, in order to do accounting etc). With this proxy, you have a
>>> choice of whether to be call stateful or not (depends on setting of the
>>> ‘remainInDialog’ property to the req.proxy method)
>>>
>>> Stateless proxy: an entity that does not maintain transaction state of
>>> client or server SIP transactions, simply forwards request. This proxy is
>>> _not_ a stateless proxy, because it needs to maintain transaction state in
>>> order to do things like handle temporary failures from one freeswitch and
>>> then land the call on another.
>>>
>>> Dave
>>>
>>> On Dec 1, 2015, at 9:14 AM, Regis M <regis.freeswitch.org at tornad.net>
>>> wrote:
>>>
>>> Hi Dave,
>>>
>>> Does your proxy could act as a stateless proxy or not ?
>>> I'm looking for a stateless proxy, I had ever test your solution but
>>> haven't find the answer to this question during my test.
>>>
>>> Thanks
>>>
>>> Regards,
>>>
>>>
>>> 2015-12-01 14:32 GMT+01:00 Dave Horton <dave at dchorton.com>:
>>>
>>>> It is a proxy. I am using the sofia sip stack (specifically nta) which
>>>> is capable of any type of sip processing, but this application uses it as a
>>>> SIP proxy.
>>>>
>>>>
>>>> On Dec 1, 2015, at 8:20 AM, Vik Killa <vipkilla at gmail.com> wrote:
>>>>
>>>> Hi,
>>>> I see this is described as a SIP Proxy but you are using the sofia SIP
>>>> stack.
>>>> Is this technically a B2BUA or a Proxy?
>>>> Thanks,
>>>> /V
>>>>
>>>> On Tue, Dec 1, 2015 at 8:14 AM, Dave Horton <dave at dchorton.com> wrote:
>>>>
>>>>> I’ve developed a nodejs-based freeswitch load balancer that may be of
>>>>> interest to those who prefer Javascript to configuration file-driven
>>>>> routing. Even better if you are a nodejs developer familiar with expressjs
>>>>> or connect, then you may find the nuts of it to be very simple:
>>>>>
>>>>>
>>>>> app.invite( function(req, res) {
>>>>> ...
>>>>> req.proxy({
>>>>> remainInDialog: false,
>>>>> handleRedirects: true,
>>>>> provisionalTimeout: '1s',
>>>>> destination: targets
>>>>> }, function(err) {
>>>>> if( err ) {
>>>>> console.error('Error proxying request: ', err) ;
>>>>> }
>>>>> }) ;
>>>>> }) ;
>>>>>
>>>>>
>>>>> Details here:
>>>>>
>>>>> http://davehorton.github.io/drachtio-fs-load-balancing-proxy/
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
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>>>>
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>>
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>
>
> _________________________________________________________________________
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> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
>
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