Re: DBMirror - Replicating binary objects of type bytea ?

From: Andrew Sullivan <andrew(at)libertyrms(dot)info>
To: pgsql-admin(at)postgresql(dot)org
Subject: Re: DBMirror - Replicating binary objects of type bytea ?
Date: 2003-08-21 14:53:03
Message-ID: 20030821145302.GC9803@libertyrms.info
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On Wed, Aug 20, 2003 at 05:34:26PM +0200, VanderLeeden wrote:
> Second question: Is a "manual" failover setup possible and
> recommended using DBMirror?

I haven't used dbmirror, but I would never[1] fail over automatically
from an asynchronous system.

Some suggestions on fail over:

1. Make sure your sequences are up to date. This is the sort of
thing you need to build a script for in advance.

2. It's good to have a policy about how much data you can afford
to lose. If the answer is, "none", you need to invest in some very
expensive hardware.

A
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