New subject: [Serusers] Load Balancing via UltraMonkey/ldirectord

12 Apr 2005

Heheh, we may actually test one of those F5network switches...i f we
don't come up with a fairly painless, bugfree, and most importantly
supportable solution. :-) I cannot code therefore I would be useless,
but I can safely say learning C is on my to-do list. We may however be
willing to contribute to a bounty, at the very least I'd be more than
happy to test :D

	Matt

-----Original Message-----
From: Greger V. Teigre [mailto:greger@teigre.com] 
Sent: Tuesday, April 12, 2005 5:29 AM
To: Matt Schulte; serusers(a)lists.iptel.org
Subject: Re: [Serusers] Load Balancing via UltraMonkey/ldirectord

:-) Yes, layer 7 switch is of course nice. But then again, you need to
make 
sure that you can price your services where people will buy them...

I wonder whether it is possible to gather some people interested in this
and 
get something started on the development side. AFAIK, LVS struggles with

other UDP services too, so a ipvs UDP content analyzer would probably be
of 
interest.   I looked at the source code and I think the most difficult
thing 
would be to extend the ipvs framework to allow a module to peak into the

packet (and not only the header). I don't know what kind of performance 
penalties you get either.

I have seen several people being willing to sponsor development. We
could 
hire somebody at http://www.rentacoder.com/ ;-)
g-)

Matt Schulte wrote:
...
  Yah I noticed the other post after I posted mine, I
don't see how it 
 would easily be possible to address the sticky issue. It would require 
...
  making a SIP aware proxy of sorts, which is a bit out
of my abilities. 
...
  Has anyone been able to address this issue? Of course
a layer7 switch 
 would do wonders and eliminate the need for all this, but who has that 
...
  money laying around :D

 I've done a little research (google) and noticed people mentioning it 
 when talking about LVS, one guy said he was going to write a module 
 but posted nothing more. That would be pretty slick.

 Matt

 -----Original Message-----
 From: Greger V. Teigre [mailto:greger@teigre.com]
 Sent: Monday, April 11, 2005 3:04 AM
 To: Matt Schulte; serusers(a)lists.iptel.org
 Subject: Re: [Serusers] Load Balancing via UltraMonkey/ldirectord

 If you see another thread (using the rather intuitive subject: Re: 
 [Serusers] more usrloc synchronization), you will see discussions on 
 using LVS in general. AFAIK, which high availability solution to use 
 for LVS, is
 more based on your personal preferences, UltraMonkey is probably a
 safe choice.  Anyway, you will need to address the "stickiness" issue.
 g-)

 Matt Schulte wrote:
  Has anyone attempted to load balance SER using 
 Ultramonkey/ldirectord? 
> I've noticed all it does is pretty much NAT and send requests 
> accordingly, the trick I guess would be the NAT part. If the SIP 
> headers = myself, would there really be any issues? One problem I can 
...
 > foresee is the possibility that loose routing
would hit the wrong 
> server. Just wanted to ask around before I wasted time trying it out 
> for myself :-) Thanks
>
> Matt
>
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RE: [Serusers] Load Balancing via UltraMonkey/ldirectord