[OpenSIPS-Users] [OpenSIPS-Devel] LCR-like modules

[David Villasmil]

But is this working yet? I see it is in the tree (1.3.2) but didn't compile,
I haven't tried, but will it?

David

On Fri, Aug 29, 2008 at 6:08 PM, Bogdan-Andrei Iancu <bogdan at voice-system.ro
> wrote:

> Hi Angel,
>
> Angel Carpintero wrote:
> > El vie, 29-08-2008 a las 10:39 +0300, Bogdan-Andrei Iancu escribió:
> >
> >> Hi,
> >>
> >> Following some discussions on the #opensips IRC channel about the LCR
> >> module, I will like to push the topic further.
> >>
> >>
> >> First, what is the status with the LCR module:
> >>
> >> 1) technical limitations
> >>       a) linear search through rules - quite slow
> >>       b) cannot handle large numbers of rules - limited number (in C
> >> code) of rules and gateways
> >>       c) no inbound processing (only outbound)
> >>       d) difficult to enhanced as it has a bit twisted design - the
> >> module was originally designed for DB-only search and later caching was
> >> added
> >>
> >
> > Bogdan , i'm agree about LCR limitations ... so as i already told you i
> > moved my setup to carrierroute , although failover with load balance is
> > not good enough on carrierroute.
> >
> >
> This is another topic that needs to be discussed - there are modules
> that share almost 70% of functionality - like lcr and carrierroute - the
> idea will be to merge all of them at the end.
> >> 2) management issues - there is no maintainer for the module, so
> >> development for this module may stale.
> >>
> >>
> >>
> >> Solution:
> >>
> >> We have a similar module (named Dynamic Routing - drouting) that
> >> provides the same LCR functionality (based on rules and GW) and even
> more.
> >> Technical adds:
> >>
> >
> > droute module looks that was introduced ( maybe by error in
> > openser-1.3.2 )
> >
> > http://www.kamailio.net/pub/kamailio/1.3.2/src/
> >
> > is the same drouting module are you talking about ?
> >
> >
> yes, that was my bad!! :D - when i generated the package for openser
> 1.3.2, I forgot to remove the module from my SVN tree :P.....
> >>     - internal data organized as a search tree - very fast to search
> >> through ( O(log(n)) instead of O(n) )
> >>     - unlimited number of rules and gateways (running on a production
> >> setup with 200K rules and with no search penalties)
> >>     - rule matching may include time intervals and recurrence (when the
> >> rule is valid)
> >>     - a rule may point to set of GWs to be used for (1) sequential
> >> selection, (2) random selection , (3) weight selection
> >>     - inbound processing - prefix and strip for calls originated by the
> GWs
> >>
> >>
> >
> > Looks good !
> >
> > What about adding new rules in realtime ? ( carrierroute is pretty slow
> > to reload routes "cr reload" ).
> >
> Drouting is taking ~3 seconds to reload 200K of rules.
> >
> >> This module is almost 3 years old and stable - it is what we use in our
> >> production setups.
> >> Also, the module already has a nice web interface for provisioning (it
> >> will released in the next month, along with an OpenSIPs Control Panel
> >> Web interface)
> >> Of course, we (Voice System) will take care and maintain the module. We
> >> will also reduce our burn of maintaining the module privately ;)
> >>
> >>
> >> So, the idea is to replace the LCR module with the DRouting module to:
> >>     1) technical advantages
> >>     2) maintenance advantages
> >>
> >>
> >>
> >> I  will like to know the opinion of this (if you find it a good or bad
> >> idea), especially from the people using LCR module. Of course I will
> >> prepare a more details documentation of this module for a better
> >> understanding.
> >>
> >
> > I'm excited with this "new" module , so you have my support to do some
> > testing and give some ideas.
> >
> The module is really stable - the feedback is more about functionality,
> but first I need to post the detailed description.
>
> Regards,
> Bogdan
>
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