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Re: Streaming replication, retrying from archive

From: Simon Riggs <simon(at)2ndQuadrant(dot)com>
To: Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>
Cc: Dimitri Fontaine <dfontaine(at)hi-media(dot)com>, Fujii Masao <masao(dot)fujii(at)gmail(dot)com>, Magnus Hagander <magnus(at)hagander(dot)net>, Robert Haas <robertmhaas(at)gmail(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Streaming replication, retrying from archive
Date: 2010-01-20 23:32:11
Message-ID: 1264030331.4043.5666.camel@ebony (view raw or flat)
Thread:
Lists: pgsql-hackers
On Wed, 2010-01-20 at 21:26 +0200, Heikki Linnakangas wrote:

> So there's just two states:
> 
> 1. Recovering from archive
> 2. Streaming
> 
> We start from 1, and switch state at error.
> 
> This gives nice behavior from a user point of view. Standby tries to
> make progress using either the archive or streaming, whichever becomes
> available first.

Sounds good. Easier to drive if we have two gears.

-- 
 Simon Riggs           www.2ndQuadrant.com


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