load balancing using keepalived

Gerry Reno greno at verizon.net
Wed May 23 04:39:35 BST 2007


Hi Joe,
Hey thanks for the response.

Joseph Mack NA3T wrote:
> you're showing a single realserver with the director running in local 
> node. 
I am? I guess I don't understand what this means. What I thought I had 
is a MASTER and a BACKUP director for failover (didn't post the BACKUP 
config but it's there on another machine), and two realservers, .25 and 
.26, and a VIP, .215. Just one LAN instance, as all servers are on local 
LAN, no WAN instance since I have just a single WAN gateway/router to 
Internet. I get the failover (and back) ok but ixnay on the load balance.

> It is a two realserver configuration, but it's not the basic 
> configuration.
Is this a valid setup (maybe not your classic 'basic' config but a 
rather simple config nonetheless)?

> I'm using 'rr' scheduling. I've looked through the forum and google 
> and I see other entries with similar situation of no load balancing 
> occurring. Can this be fixed? I was expecting that the connections 
> would alternate between the two realservers when using the 'rr' 
> scheduler.
>
> I would have thought so too.
Do you see anything in my config that could be the cause of the lack of 
load balancing? Or is this really a bug?
>> Here is ipvsadm:
>> # ipvsadm
>> IP Virtual Server version 1.2.1 (size=4096)
>> Prot LocalAddress:Port Scheduler Flags
>> -> RemoteAddress:Port Forward Weight ActiveConn InActConn
>> TCP 192.168.1.215:ssh rr
>> -> 192.168.1.26:ssh Masq 1 0 1
>> -> 192.168.1.25:ssh Local 1 3 0
>> #
>
> Joe
>

thx,
Gerry


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