[wp-hackers] Load Balancing | Media Uploads to Multiple Servers

[Steve Pellham]

Thanks for the input Eric...

So what happens when the 'central location' gets cutoff from the world:
massive communication failure, hardware failure, fire, [insert your own
disaster here]?

A central location for the site isn't acceptable if that 'central location'
(I'm guessing you mean some sort of NAS/Network Storage) gets cutoff from
the world.  I'm speaking in terms of separate www/db servers that are
geographically dispersed.  If the 'web heads' both pulled from a central
location (easier to maintain... but...) there is still a single point of
failure.  If our east coast servers go down, the west coast would have
access to all content that had been successfully sync'ed and/or replicated -
both in the respect of replicated mysql (separate servers) and two or more
web servers that are synced as applications are modified and/or content
uploaded.
I fail to see how not replicating data (mysql, application, content data)
across multiple servers prevents a single point of failure.

Thanks, Steve
On Wed, Jul 29, 2009 at 9:49 PM, Eric Marden <wp at xentek.net> wrote:

> On Jul 29, 2009, at 10:00 AM, Steve Pellham wrote:
>
>  Is anyone aware of an existing plugin for the post editor pages and/or
>> media
>> gallery that would push uploaded media (images, video, etc....) to
>> multiple
>> servers in cases where a WP installation is load balanced?
>>
>
> You shouldn't have two copies of your site out there. Pick a central
> location for the entire site and mount the directory from there to both your
> 'Web Heads', which would include your wp-content/uploads folder. I generally
> use the DB Server for this, instead of trying to replicate mysql across both
> full stack LAMP boxes, and have both instances talk to that DB on a private
> IP.
>
> YMMV,
>
> - Eric Marden
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