[wp-hackers] Question about WP on load balanced cluster

[Potkanski, Jason]

The significant advantage of Wordpress is its ability to scale horizontally. As traffic goes up, I can just provision more web servers and go. 

Implementing sessions requires one to either attach NFS, use one of the new php memcache or mysql session handlers or write our own implementation. In other words, the web server can't be "dumb" anymore, they have to be "smart." That introduces more potential points of failure and more complexity when trying to triage a performance problem in a production environment.

http://www.tuxradar.com/practicalphp/10/1/3



-----Original Message-----
From: wp-hackers-bounces at lists.automattic.com [mailto:wp-hackers-bounces at lists.automattic.com] On Behalf Of Baki Goxhaj
Sent: Thursday, January 27, 2011 2:29 PM
To: wp-hackers at lists.automattic.com
Subject: Re: [wp-hackers] Question about WP on load balanced cluster

Just curious, Jason, what is wrong with sessions?

On 1/27/11, Potkanski, Jason <jpotkanski at tribune.com> wrote:
> Just to add...
>
> I've seen many a plugin developer try and slip sessions into their code.
> Make sure to grep your codebase for "session_start" or any other such
> silliness.
>
> That said, if you do end up in that trap, some load balancers allow for
> "stickiness." The solutions get more complex from there, and since you guys
> are using IIS (why oh why), none of it would apply.
>
> Jason Potkanski
> Release Lead, Application Developer
> Tribune Technology, Back-End Support
>
>
> On 27 Jan 2011, at 10:48, Adam Rifat wrote:
>
>> We are currently installing WP for use on our site. We have two web
>> servers running IIS with a load balancer. At the moment we are just
>> installing onto one server with the db on a separate server. I have
>> searched but cannot find any definitive advice on how to go about
>> configuring WP across two servers like this. The obvious problem is
>> sessions and maintaining sessions between two separate servers. Is this an
>> issue with WP and if so how can I resolve it? Is there a plugin or some
>> other solution?
>
> WordPress don't using sessions so you don't need to maintain them between
> servers.
>
> Running with a single database server and two web servers should be simple
> to setup - just using the same wp-config.php file on both.
>
> Cheers
> --
> Peter Westwood
> http://blog.ftwr.co.uk | http://westi.wordpress.com
> C53C F8FC 8796 8508 88D6 C950 54F4 5DCD A834 01C5
>
> _______________________________________________
> wp-hackers mailing list
> wp-hackers at lists.automattic.com
> http://lists.automattic.com/mailman/listinfo/wp-hackers
> _______________________________________________
> wp-hackers mailing list
> wp-hackers at lists.automattic.com
> http://lists.automattic.com/mailman/listinfo/wp-hackers
>

-- 
Sent from my mobile device

Kindly,

Baki Goxhaj
www.wplancer.com | www.banago.info | proverbhunter.com
_______________________________________________
wp-hackers mailing list
wp-hackers at lists.automattic.com
http://lists.automattic.com/mailman/listinfo/wp-hackers