Re: [PLUG] Load-balanced HA cluster

**corrected post**

I was thinking the same thing... If you want to keep it simple but be a step above DNS RR, you can put in a server to do the downstream selection. Just like Nginx, Apache has this ability too:
http://httpd.apache.org/docs/2.2/mod/mod_proxy_balancer.html

There is also Apache Camel but that is more for people working with J2EE stuff. It can however specify HTTP endpoints:
http://camel.apache.org/load-balancer.html

~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
Keith C. Perry, MS E.E.

Owner, DAO Technologies LLC

(O) +1.215.525.4165 x2033

(M) +1.215.432.5167

www.daotechnologies.com

From: "Keith C. Perry" <kperry@daotechnologies.com>
To: "Philadelphia Linux User's Group Discussion List" <plug@lists.phillylinux.org>
Sent: Saturday, November 22, 2014 10:08:38 AM
Subject: Re: [PLUG] Load-balanced HA cluster

I was thinking in the same thing... If you're want to keep it simple but be a step above DNS RR, you can put a proper server to do the downstream selection. Just like Nginx, Apache his this ability too:
http://httpd.apache.org/docs/2.2/mod/mod_proxy_balancer.html

There is also Apache Camel but that is more for people working with J2EE stuff but it can specific HTTP endpoints:

http://camel.apache.org/load-balancer.html

~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
Keith C. Perry, MS E.E.

Owner, DAO Technologies LLC

(O) +1.215.525.4165 x2033

(M) +1.215.432.5167

www.daotechnologies.com

From: "Doug Stewart" <zamoose@gmail.com>
To: "Philadelphia Linux User's Group Discussion List" <plug@lists.phillylinux.org>
Sent: Friday, November 21, 2014 11:55:12 PM
Subject: Re: [PLUG] Load-balanced HA cluster

Or, go ultra-simple and use Nginx to do your load balancing:

http://nginx.org/en/docs/http/load_balancing.html

On Fri, Nov 21, 2014 at 11:53 PM, Doug Stewart <zamoose@gmail.com> wrote:

Load-balanced or HA? Which is it? Are you doing Active-Active?
If it's just a web app and you have no need for e.g. disk fencing, a simple third load balancer on the front end (HA Proxy, for instance) could work wonders. Or you could use Varnish or Apache Traffic Server to spread load across the web servers.

Just make sure you enable session stickiness, regardless of which tool you end up using.

On Fri, Nov 21, 2014 at 11:42 PM, Daniel Aharon <daguerre.m@gmail.com> wrote:

I'm soon going to need to set up my web app (served up by apache/centos5.5) with redundancy, load-balanced with failover.
Last time I did this was 2007 or so, using RHEL and heartbeat with a virtual IP address pair.
What's one or more of the best ways of doing this today? Any nice shiny methods in the past few years?

--
Sent from a mouse-sized keyboard, please forgve typos.
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--
-Doug

-Doug

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