[OpenSIPS-Users] Question on dispatcher module

[Alejandro Recarey]

Thank you Vlad, just realized it was a stupid question due to using
Record Route. I just was confused by the wording on the dispatcher
page.

I already configured the load balancer module, but I think the
dispatcher is more appropriate for my use case.

Thanks for the answer.

Regards,

Alex

On Thu, Sep 29, 2011 at 10:28 AM, Vlad Paiu <vladpaiu at opensips.org> wrote:
> Hello,
>
> Here is a nice tutorial about how to do load-balacing between several
> gateways :
>    http://www.opensips.org/Resources/DocsTutLoadbalancing
>
> You can force sequential requests to take the same path as the original
> INVITE message by using the Record-Route mechanism. So basically you will
> load-balance just the initial requests ( INVITE ), and let the sequential
> requests within the dialog follow the same path.
>
> Regards,
>
> Vlad Paiu
> OpenSIPS Developer
>
>
> On 09/28/2011 08:11 PM, Alejandro Recarey wrote:
>>
>> Hello all,
>>
>> I was reading the documentation on the dispatcher module and it says:
>>
>> "Is dispatcher dialog stateful?
>>
>> No. Dispatcher is stateless, although some distribution algorithms are
>> designed to select same destination for subsequent requests of the
>> same dialog (e.g., hashing the call-id)."
>>
>> I am trying to load balance calls between different asterisk gateways,
>> and I think the round-robin algorithm would be ideal (I would like the
>> option of having a weighted round robin, but that is beside the
>> point). I don't understand the use of the dispatcher module if, for
>> example, the CANCEL request from the originating caller is sent to a
>> different asterisk box than the one that had the INVITE request. As
>> far as I can read into the module, there is no guarantee that the
>> requests in the same dialog will go to the same box.
>>
>> How can I setup the dispatcher to load balance between asterisk gateways?
>>
>> Regards,
>>
>> Alex
>>
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