Re: Scaling

Zitat von Chris Ernst <cernst@zvelo.com>:

> On 04/24/2011 04:21 PM, David Hornsby wrote:
>> My SMB database is currently running on a HP-UX box running in a master
>> - slave slonyI cluster to create a hot spare database. Recently the
>> server has be getting hammered and we are consistently hitting our max
>> db connections. We have our web CMS and our web apps, our desktop client
>> apps, and a couple application servers running off of this database
>> server and it is crumbling under the stress. Currently we have been
>> doing table partitioning and table archiving to trim the fat off of the
>> indexing processes etc.
>>
>> My project at hand is to upgrade this configuration to a linux cluster
>> of servers, 2 - 3. The ideal solution is to just do load balancing
>> through DNS requests and have 2 servers in a multi master configuration.
>> So far we have not had any hardware issues on our current set up ( knock
>> on wood). So in doing this I am not immediately looking for a hot spare
>> set up. But in the future am looking at setting up a VPN tunnel to an
>> offsite server and sending WAL updates to that.
>>
>> Any and all comments are truly appreciated as well as any nudges in
>> various directions.
>
> I'm not aware of any production ready multi-master solution for
> PostgreSQL.  So I would not suggest perusing that at the moment.

http://wiki.postgresql.org/wiki/Bucardo

But i have never used it so no idea how stable/mature it is.

Regards

Andreas