Обсуждение: read-only queries on PITRslaves, any progress?

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read-only queries on PITRslaves, any progress?

От
Marinos Yannikos
Дата:
Hello,

this might not be the best place to ask, but has there been any further
progress or an alternative project to Florian Pflug's SoC 2007 proposal
about enabling PITR slaves to serve read-only queries? It seems like an
elegant way to load-balance a PostgreSQL database with very little overhead.

This was the original thread:
http://archives.postgresql.org/pgsql-hackers/2007-03/msg00050.php

Thanks,
-mjy
--
Dipl.-Ing. Marinos Yannikos, CEO
Preisvergleich Internet Services AG
Obere Donaustrasse 63, A-1020 Wien
Tel./Fax: (+431) 5811609-52/-55
Handelsgericht Wien - FN 197241K - Firmensitz Wien

Re: read-only queries on PITRslaves, any progress?

От
"Alexander Staubo"
Дата:
On 9/15/07, Marinos Yannikos <mjy@geizhals.at> wrote:
> this might not be the best place to ask, but has there been any further
> progress or an alternative project to Florian Pflug's SoC 2007 proposal
> about enabling PITR slaves to serve read-only queries? It seems like an
> elegant way to load-balance a PostgreSQL database with very little overhead.

I too would love to hear about this.

Alexander.

Re: read-only queries on PITRslaves, any progress?

От
"Merlin Moncure"
Дата:
On 9/18/07, Alexander Staubo <alex@purefiction.net> wrote:
> On 9/15/07, Marinos Yannikos <mjy@geizhals.at> wrote:
> > this might not be the best place to ask, but has there been any further
> > progress or an alternative project to Florian Pflug's SoC 2007 proposal
> > about enabling PITR slaves to serve read-only queries? It seems like an
> > elegant way to load-balance a PostgreSQL database with very little overhead.
>
> I too would love to hear about this.

Florian has been hard at work on getting the lazy xid assignment patch
in for 8.3, which is now complete.  AIUI, this is an important step
towards read only pitr slave (with other advantages too), and shows
that things are moving along.  I don't have a crystal ball, but I'm
guessing you will start to hear more about this when the 8.3 beta is
wrapped.

merlin

Re: read-only queries on PITRslaves, any progress?

От
"Alexander Staubo"
Дата:
On 9/18/07, Merlin Moncure <mmoncure@gmail.com> wrote:
> Florian has been hard at work on getting the lazy xid assignment patch
> in for 8.3, which is now complete.  AIUI, this is an important step
> towards read only pitr slave (with other advantages too), and shows
> that things are moving along.  I don't have a crystal ball, but I'm
> guessing you will start to hear more about this when the 8.3 beta is
> wrapped.

I was hoping for a tighter timeframe, but this is good to know, thanks.

Alexander.