[DRBD-user] drbd on busy website with real time replication of mysql

[Florian Haas]

On Sunday 02 December 2007 22:02:38 AxelYson wrote:
> I would to deploy drbd on a large site to replicate mysql database on 2
> datacenter about 20GB the size of database with real time replication.

If you really mean geographic redundancy, then I do hope you have some real 
nice fat low-latency pipes between those 2 data centers, otherwise _any_ 
solution involving synchronous replication is just going to make your users 
real unhappy.

> Are 
> the clients that do some transaction to my website will be affected because
> heavy traffic cause by drbd real time replication?

You mean will DRBD replication/resync bite a major chunk off your web 
application's performance? If you configure DRBD and MySQL correctly, no. 

You might want to have a chat with a MySQL Professional Services consultant on 
that matter. DRBD is a fully supported MySQL Enterprise add on. See 
http://www.mysql.com/drbd.

Cheers,
Florian 

-- 
: Florian G. Haas 
: LINBIT Information Technologies GmbH
: Vivenotgasse 48, A-1120 Vienna, Austria