NYCPHP Meetup

[Edward Potter]

I mean just in case: :-)

http://en.wikipedia.org/wiki/Shard_%28database_architecture%29

Shard database architecture
Horizontal partitioning is a database design principle whereby rows of
a database table are held separately, rather than splitting by columns
(as for normalization). Each partition forms part of a shard, which
may in turn be located on a separate database server or physical
location.

...

This is also why sharding is related to a shared nothing architecture
- once sharded, each shard can live in a totally separate logical
schema instance / physical database server / data center / continent.
There is no ongoing need to retain shared access (from between shards)
to the other unpartitioned tables in other shards.


On Wed, Jul 28, 2010 at 3:04 PM, Anthony Wlodarski
<anthony at dating2p0.com> wrote:
> It sounds scary but the LHC and CERN are field testing the sharding.  I
> believe they are hyping this up for the 1.6 RC 1 which offers replica sets
> and sharing.
>
> -Anthony
>
> -----Original Message-----
> From: "Gary Mort" <garyamort at gmail.com>
> Sent: Wednesday, July 28, 2010 2:36pm
> To: "NYPHP Talk" <talk at lists.nyphp.org>
> Subject: [nycphp-talk] Mongo...sharding??
>
> So...slowly getting interested in MongoDB....
> One of the items I found interesting is the repeated assertions that "Mongo
> is designed for sharding"....yet sharding only exists in the development
> branch of the code...
> So, my question is, is Mongo being used in production with sharding?
>
>
> Anthony Wlodarski
> Lead Software Engineer
> Dating 2.0
> 646 285 0500 x217
> anthony at dating2p0.com
>
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