[HyperDB] Multiple database connections?

[Martin Zvarík]

I understand now.

Brian Layman napsal(a):
> If you figure that each database server can only process a certain number of
> commands at any one time and that it can only send out a certain amount of
> information at once, you can see that increased traffic can eventually
> overrun your resources.  When you get to that point, obviously you'll
> improve your performance when you double, triple or quadruple the processing
> power and bandwidth by adding more servers/datacenters. Additionally, if a
> server or 
> datacenter goes down, having all requests seamlessly route another database
> server/center allows your site to stay up.
>
> HyperDB provides ability leverage multiple database servers and/or
> datacenters to address these kinds of perfomance issues.
>
> Hope that helps.
>
> Brian Layman
> b5media, Inc.
>
> -----Original Message-----
> From: hyperdb-bounces at lists.automattic.com
> [mailto:hyperdb-bounces at lists.automattic.com] On Behalf Of Martin Zvarík
> Sent: Monday, September 22, 2008 6:01 PM
> To: hyperdb at lists.automattic.com
> Subject: [HyperDB] Multiple database connections?
>
> Hi,
> I have not inspected the HyperDB code nor used it, but if I am just 
> logically thinking...
> If I have articles in database #1 and comments in database #2 --- isn't 
> it slower to have it in several servers and databases (using HyperDB) in 
> comparison to one DB, one server? (this question is a result from 
> experiencing that connection to database server takes time)
>
> If you find this question irrelevant please reply anyway, I'd like to 
> catch on on this.
>
> Thank you,
> Martin
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