[OpenSIPS-Users] dispatcher with t_relay performance

[SamyGo]

Oh, I thought it was a typo, 200,000 CPS ! Well I'd say to not spend much
time thinking about t_relay() rather spend energy on designing an
architecture that can give you the flexibility and scalability options.

For example:
A DNS SRV pointing to a layer of stateless dispatcher OpenSIPS. These
stateless OpenSIPS just don't care about any business logic just do a rough
load-balancing and "redirect" to the second layer OpenSIPS.
The second layer of OpenSIPS do the business logic and stay in call i.e use
t_relay()

That is a simple example in which you can add as many OpenSIPS at both
layers to manage your 200K CPS.

There could be way too many different ways of handling your 200K CPS load,
it all depends on your business logic, type of SIP requests and calls etc,
location of the end users/regions, methods to tweak your business logic i.e
use of caches and NoSQL DBs, and so much that only you may know at this
point.

Please go through this link: http://www.opensips.org/About/PerformanceTests
to see results for different types of configurations. However, do keep in
mind that those results may be done on older versions of OpenSIPS and you
may want to stress test your setup separately to know what are your
capabilities.

Regards,
Sammy



On Mon, Mar 7, 2016 at 8:54 AM, Satish Patel <satish.txt at gmail.com> wrote:

> We have 200,000 CPS and more in future. Just worried about t_relay() and
> its performance. Any idea?
>
> --
> Sent from my iPhone
>
> On Mar 6, 2016, at 2:44 PM, SamyGo <govoiper at gmail.com> wrote:
>
> I'd ask you to read difference between Load_balancer and Dispatcher
> module. Dispatcher module is not an accurate measure but it is the only
> option when it comes to load balancing REGISTER requests.
>
> Dispatcher is hence very light weight as compared to Load Balancer. For a
> 200 CPS calls Load Balancer or Dispatcehr won't be putting any bigger
> impact relative to the business logic itself. For example doing alot of DB
> queries, engaging various other modules etc these things really define how
> light or heavy your system is going to be.
>
> Regards,
> Sammy
>
>
> On Sun, Mar 6, 2016 at 10:36 AM, Satish Patel <satish.txt at gmail.com>
> wrote:
>
>> Any thought on it???
>>
>> On Fri, Mar 4, 2016 at 1:30 PM, Satish Patel <satish.txt at gmail.com>
>> wrote:
>> > We have dispatcher and we are using very simple code block like
>> following
>> >
>> > if (method=="REGISTER" || method=="INVITE" ) {
>> >      ds_select_dst("1", "2");
>> >      t_relay();
>> >    }
>> >
>> > Does t_relay will keep all transaction in memory? and what will be the
>> > performance issue?  we have ~200k cps calls.. what will be the impact?
>>
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