[clue] load-balancing

[Ryan Naef]

David,

That should not be an issue.

 

You would set up your acl’s for each of your networks:

acl networkA x.x.x.x

acl networkB x.x.x.y …

 

Then set the backends to use:

use_backend destNodeA if networkA

use_backend destNodeC if networkD

 

default_backend destNodeA

 

Then your backends:

backend destNodeA

…

Server nodeA z.z.z.z:pp options weight 256

Server nodeB z.z.z.y:pp options weight 1

 

 

So for each network you can specify which backends to use, how often to check and even what port to connect on.

 

Regards,
Ryan Naef
Systems Administrator
Web Development

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From: clue-bounces at cluedenver.org [mailto:clue-bounces at cluedenver.org] On Behalf Of David L. Willson
Sent: Thursday, October 30, 2014 9:21 AM
To: CLUE's mailing list
Subject: Re: [clue] load-balancing

 

Thanks Ryan,

Here's the thing I need that might be hard, I need to be able to satisfy these assertions: 

For source networks A, B, and C, dest-node A is preferred, B is a usable standby, but dest-node C should never be tried (even if it's up).
For source networks C, D, and E, dest-node C is preferred, B is a usable standby, but dest-node A should never be tried (even if it's up).

Do you think HAProxy is up to that?

--
David L. Willson
Teacher, Engineer, Evangelist
RHCE+Satellite CCAH Network+ A+ Linux+ LPIC-1 UbuntuCP NovellCLA
Mobile 720-333-LANS(5267)
http://sofree.us

This is a good time for a r3VOLution.

 

________________________________

	David,

	While I do not profess to be an HAProxy expert, we have used it to check most of the boxes on your list in the past. 

	You can use the weight parameter on your backend servers to specify where the traffic is preferred – a value of 256 for your primary and 1 as your failover should accomplish what you are looking for. 

	You can also write IP based ACL’s to set traffic from each network to specific backends. 

	 

	There are some limitations – HAProxy will only support TCP, and I have had issues with some ssl. 

	 

	Regards,
	Ryan Naef

	 

	From: clue-bounces at cluedenver.org [mailto:clue-bounces at cluedenver.org] On Behalf Of David L. Willson
	Sent: Thursday, October 30, 2014 7:43 AM
	To: CLUE's mailing list
	Subject: [clue] load-balancing

	 

	I am looking for an intelligent load-balancer. It needs to understand proximity / preference. I want to be able to send all the clients from (these networks) to this node, unless it's down, or fully-loaded, or otherwise uninterested in new connections, then send them to this node, instead.
	
	I don't mind if I have to setup the preference rules (which networks prefer which servers), but it would be cool if I didn't have to.

	 

	I'd *strongly* prefer a solution that doesn't generate vendor lock-in. ie: I don't mind paying for it, but I'd like to preserve the freedom to choose *who* to pay.

	 

	It would be really great if someone that has a lot of experience with HAProxy confidently said something like, "Oh yeah, it does all that. Just do this and this, and that, and it works great, lasts a long time, and you'll lose weight doing it."

	 

	--
	David L. Willson
	Teacher, Engineer, Evangelist
	RHCE+Satellite CCAH Network+ A+ Linux+ LPIC-1 UbuntuCP NovellCLA
	*killed my phone on Sunday. This space for rent.*
	http://sofree.us
	
	This is a good time for a r3VOLution.

	 

	
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