Re: replication in Postgres - Mailing list pgsql-general

From Ow Mun Heng
Subject Re: replication in Postgres
Date
Msg-id 1199322156.4569.3.camel@neuromancer.home.net
Whole thread Raw
In response to Re: replication in Postgres  (Chris Browne <cbbrowne@acm.org>)
List pgsql-general
On Mon, 2007-11-26 at 12:39 -0500, Chris Browne wrote:
> jlar310@gmail.com ("Jeff Larsen") writes:
> Unfortunately, the only way to make things deterministic (or to get
> from "near real time" to "*GUARANTEED* real time") is to jump to
> synchronous replication, which is not much different from 2PC (Two
> Phase Commit), and which is certain to be prohibitively expensive
> across a WAN.
>

2PC is costly and will make things slow overall if there ever was issues
with the WAN. And to alleviate that, I believe one would have to get a
dedicated WAN line just for the syncing process. Expensive.. Anyone can
Spell S-L-A??

> At this point, I tend to get visions of Tom Cruise telling Jack
> Nicholson, "I want real time replication!", and getting the response:
> "You can't HANDLE real time replication!"

Woo.. I like this movie. _best_ court scene _ever_!


pgsql-general by date:

Previous
From: "Usama Dar"
Date:
Subject: Re: PITR - filter by database?
Next
From: Ow Mun Heng
Date:
Subject: Re: Read-only availability of a standby server?