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Re: Cascading replication: should we detect/prevent cycles?

From: Josh Berkus <josh(at)agliodbs(dot)com>
To: Peter Geoghegan <peter(at)2ndquadrant(dot)com>
Cc: Robert Haas <robertmhaas(at)gmail(dot)com>, Simon Riggs <simon(at)2ndquadrant(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>, "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com>
Subject: Re: Cascading replication: should we detect/prevent cycles?
Date: 2013-01-08 18:46:12
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-hackers
On 1/5/13 1:21 PM, Peter Geoghegan wrote:
> On 21 December 2012 14:08, Robert Haas <robertmhaas(at)gmail(dot)com> wrote:
>> I'm sure it's possible; I don't *think* it's terribly easy.
> I'm inclined to agree that this isn't a terribly pressing issue.
> Certainly, the need to introduce a bunch of new infrastructure to
> detect this case seems hard to justify.

Impossible to justify, I'd say.

Does anyone have any objections to my adding this to the TODO list, in 
case some clever GSOC student comes up with a way to do it *without* 
adding a bunch of infrastructure?

Josh Berkus
PostgreSQL Experts Inc.

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