RE: [Linux-cluster] Load balancing

[Kovacs, Corey J.]

Sorry if this hs been suggested as I've been away and haven't sifted through
all the cruft emails I have.

If I am understanding this correctly, you have the target machine AND the LVS

machines using the same IP address? If so, I don't think this is a correct
LVS
configuration. 

In my configs, the only machines that actually have the virtual address as
the 
load balancers. They, in turn (using direct routing) forward the packets to
the
target nodes. The target nodes in turn need to be configured to accept
packets 
that were not oroginally the target for those pakets.


client
^ |
| ---->incoming --> LVS1 (.10) (virt .15)  --->
|                   LVS2 (.11)                | packets redirected to "real
server address" 
|                                             |
|<------------------TGT1 (.12) <--------------|
                    TGT2 (.13)
                    TGT3 (.14)


If you are using another routing scheme (I believe there are three) this may
not
work. But it works for me.



Hope this helps.


Corey


-----Original Message-----
From: linux-cluster-bounces at redhat.com
[mailto:linux-cluster-bounces at redhat.com] On Behalf Of isplist at logicore.net
Sent: Thursday, November 09, 2006 10:38 AM
To: linux clustering
Subject: Re: [Linux-cluster] Load balancing

Yes, it's more than I'd like to spend but more importantly, it's also
something that someone who needs a few bucks can help with.

Mike


On Thu, 09 Nov 2006 17:24:05 +0200, Riaan van Niekerk wrote:
> isplist at logicore.net wrote:
> 
>> I've spent this whole week so far trying to get load balancing working.
>> I've posted the config I'm working with and strangely, no replies.
>> I've tried LVS/Piranha and am now trying keepalived. Nothing seems to 
>> work and I'm at a loss.
>> 
>> Once I see it working, I'll understand it and in fact, I already 
>> understand it, it's just not working. Could be my firewalling, could 
>> be something else, I've no idea.
>> 
>> I don't know what the rules are but can I offer someone a bit of cash 
>> to help me get this working??? I need a master/slave LB front end 
>> that handles both web and email connections to a cluster. Or, two LB 
>> front ends, one for web and one for email.
>> 
>> Mike
>> 
> hi Mike
> 
> Have you considered contacting Red Hat for support? To be able to 
> escalate to them, you need at least
> - one RHEL ES Standard ($799) and
> - one Red Hat Cluster Suite ($499) subscription (you only need a 
> subscription for the LVS, not the real servers)
> 
> Or is this more than what you would be willing to spend? For that 
> price, you would get unlimited incident support for your system, for 
> one year, btw.
> 
> greetings
> Riaan




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