On 7 Mar 2011, at 17:38, Marc To <[email protected]> wrote:
> Hello Hassan,
> Many traditional apps (not just Ruby/RAILS) are not designed with
> 3-tiered scalablity in mind. A common practice is to store app data
> to the file system. This is probably the number one issue with regards
> the
> the mentioned criteria. In this case the app would not be compatible in
> a
> load balanced system, unless some sort of network file storage is used.
> As an example of a pure 3-Tiered compatible app, Tracks is completely
> database driven, and can be easily scaled in an horizontal fashion.
>
What's specific about the cloud? Load balancing across multiple servers is
something people have be doing for years. I would have thought that just about
any production rails app of any size will be load balanced, for redundancy if
nothing else (certainly anything I've ever worked on has).
If you need examples, heroku claimed to have deployed 100,000+ rack/rails apps
Fred.
> Thanks
> MT
>
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