Re: Limit of LVS NAT ?

[Ranga Nathan <kairanga@xxxxxxx>]

Joe Stump wrote:

> I guess a better question is: How much traffic are you pushing? I've  
> seen LVS-NAT do 10-12 million page views a month with three dual  
> 3.2GHz P4's. I've seen LVS-DR (it might have been LVS-TUN) do 30  
> million page views a month on four dual 750MHz Xeons with nearly no  
> load at all.
Hi Joe:
I got the Karl Kopper's book and it only mentions TUN in passing. From 
what you are saying TUN provides good performance. Should one prefer 
that to VLAN in a geographically dispersed WAN?
> If you're not serving more than the above and you have 20 servers  
> you're over killing or your code needs a review.
> --Joe
>
> On Sep 13, 2005, at 10:33 PM, Ritesh Agrawal wrote:
>
> > Dear All,
> >
> >      Really ultramonkey is working well with RHEL v4 (kernel  2.6.9)  in
> > my cluster environment.... My question is what's the exteme limit  of 
> > LVS
> > NAT
> > How  many real servers it can support.How much throughput it can
> > deliver. How much it's connection limit, how can i increase maximum
> > connections.
> > As i read the document in linuxvirtualserver.org , LVS NAT works  
> > fine in
> > around 20 real servers.
> > But what would be happened if i add more than 30 real servers in
> > cluster.
> > is it hard limit or what ? , because i am using medium range server 
> > (dell
> > poweredge 1850) with Gbit switch , so network  should not be  
> > bottleneck.
> > even director's configuration is dual P-4 2.4 Ghz processor with 4 GB
> > RAM.
> >
> > To improve the efficiency of director what should i do, like  increasing
> > socket window size , MTU value of NIC ?
> > Your experience will help me
> >
> >
> > Regards
> > Ritesh Agrawal
> >
> >
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> --
> Joseph C. Stump
> joe@xxxxxxxxxxxx
> http://www.joestump.net
>
>
>
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