Re: Cascading Recovery

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Thank you for the info.

On Mon, Feb 14, 2011 at 5:53 AM, Scott Mead <scottm@xxxxxxxxxxx> wrote:


On Sun, Feb 13, 2011 at 10:35 AM, Selva manickaraja <mavles78@xxxxxxxxx> wrote:
Any updates?

 You can't use any wal based replication like that.  When a node is in recovery mode, it doesn't log.

--Scottie
 


---------- Forwarded message ----------
From: Selva manickaraja <mavles78@xxxxxxxxx>
Date: Sat, Feb 12, 2011 at 1:43 AM
Subject: Re: Cascading Recovery
To: Guillaume Lelarge <guillaume@xxxxxxxxxxxx>
Cc: pgsql-admin@xxxxxxxxxxxxxx


If not with Streaming Replication, what about Continous Archiving Mode?


On Fri, Feb 11, 2011 at 3:35 PM, Guillaume Lelarge <guillaume@xxxxxxxxxxxx> wrote:
Le 11/02/2011 05:43, Selva manickaraja a écrit :
> We are considering on using a primary and 2 secondary machines. But our plan
> is to cascade the recovery as follows:
>
> 1. Primary Machine-A (read and write operation)
> 2. Secondary Machine-B (recover from Machine A)
> 3. Secondary Machine-C (recover from Machine B)
>
> We are planning this kind of recovery as we want to phase out recovery
> interval between C and B 30 minutes.
>
> Can this be achieved by PostgreSQL.
>

Not with Streaming Replication. But you can achieve this with a
different replication engine, like Slony.


--
Guillaume
 http://www.postgresql.fr
 http://dalibo.com





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