[development] flickr - how to scale a php app

Benson Wong mostlygeek at gmail.com
Mon Feb 27 23:49:02 UTC 2006

That was a great presentation. I asked Cal to do the presentation for
us for the Vancouver PHP group last year. This was before they were
acquired by Yahoo. They still run MySQL, probably just more of the

I haven't gone through the slides in a while, but some good points
from the presentation:

1. Vertical scaling (more code) vs Horizontal scaling (more machines)
2. MySQL slaves have to be same speed as masters
3. Replicating just parts of the database (search indexes) to slaves.

On 2/27/06, Moshe Weitzman <weitzman at tejasa.com> wrote:
> with all the enterprise talk floating about, i want to share this
> persentation from the flickr guys which circulated for a while but i bet
> some folks haven't seen it. there is some good info on their scaling
> problems and solutions. no deep details, but still useful. their usage
> stats are impressive, and i'm sure they have grown tremendously since
> this presentation.
> see http://www.niallkennedy.com/blog/uploads/flickr_php.pdf

Benson Wong
Day: 604 691 1637
Cell: 604 417 8169
Blog: http://www.mostlygeek.com

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