Re: Postgresql Replication High Availability

Hi Rodrigo,

So where did you install sequoia? On your application servers? On
your database servers? Or on dedicated servers running only sequoia?

Thanks,

____________________________________________________________________
Brendan Duddridge | CTO | 403-277-5591 x24 | brendan(at)clickspace(dot)com

ClickSpace Interactive Inc.
Suite L100, 239 - 10th Ave. SE
Calgary, AB T2G 0V9

http://www.clickspace.com

On Dec 4, 2005, at 11:41 AM, Rodrigo Hjort wrote:

> Brendam,
>
> We started testing Sequoia last week, and it reached our expectatives
> of High Availability and Load Balance. We still need to verify if the
> performance is not so degradated due to multiple clusters updating.
>
> What is the difference between Sequoia and p/cluster? I mean, the
> latter is a commercial solution offered by Continuent, the same
> producer of Sequoia.
>
> Our applications are based on JBoss, connecting to a PostgreSQL via
> JDBC. One of the greatest features we found on Sequoia is the URL
> style:
>
> "jdbc:sequoia://first_node:port,second_node:port/database"
>
> When a Sequoia Controller is down (eg: first_node), the JDBC tries
> another one (ie, second_node), and it occurs transparently to the
> application! The JDBC Driver handles it all alone! I don't know if
> with a pure PostgreSQL JDBC Driver and the Slony I + Heartbeat joint
> solution the application would perform the same behavior...
>
> 2005/12/3, Brendan Duddridge <brendan(at)clickspace(dot)com>:
>> Hello Rodrigo,
>>
>> Have you (or anyone else on this list) had great success with
>> Sequoia? I've been reading a bit about it. It looks like it might
>> work for us for a high-availability solution. Do you think it's just
>> as good as using p/cluster? We're deploying to Mac OS X Server and it
>> looks like p/cluster only supports Linux on x86.
>>
>> Thanks,
>>
>> ____________________________________________________________________
>> Brendan Duddridge | CTO | 403-277-5591 x24 | brendan(at)clickspace(dot)com
>>
>> ClickSpace Interactive Inc.
>> Suite L100, 239 - 10th Ave. SE
>> Calgary, AB T2G 0V9
>>
>> http://www.clickspace.com
>
> Regards,
>
> Rodrigo Hjort
> http://www.pr.gov.br
>
> ---------------------------(end of
> broadcast)---------------------------
> TIP 5: don't forget to increase your free space map settings
>