Message-ID: <529E28D9.9070905@commandprompt.com>
Date: Tue, 03 Dec 2013 10:54:17 -0800
From: "Joshua D. Drake" <jd@commandprompt.com>
Organization: Command Prompt, Inc.
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To: Robert Haas <robertmhaas@gmail.com>, =?ISO-8859-1?Q?Fabr=EDzio_Mell?=
 =?ISO-8859-1?Q?o?= <fabriziomello@gmail.com>
CC: Christian Kruse <christian@2ndquadrant.com>,
 Pgsql Hackers <pgsql-hackers@postgresql.org>
Subject: Re: Time-Delayed Standbys
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On 12/03/2013 10:46 AM, Robert Haas wrote:
>
> On Tue, Dec 3, 2013 at 12:36 PM, Fabrízio de Royes Mello
> <fabriziomello@gmail.com> wrote:
>> On Tue, Dec 3, 2013 at 2:33 PM, Christian Kruse <christian@2ndquadrant.com>
>> wrote:
>>>
>>> Hi Fabrizio,
>>>
>>> looks good to me. I did some testing on 9.2.4, 9.2.5 and HEAD. It
>>> applies and compiles w/o errors or warnings. I set up a master and two
>>> hot standbys replicating from the master, one with 5 minutes delay and
>>> one without delay. After that I created a new database and generated
>>> some test data:
>>>
>>> CREATE TABLE test (val INTEGER);
>>> INSERT INTO test (val) (SELECT * FROM generate_series(0, 1000000));
>>>
>>> The non-delayed standby nearly instantly had the data replicated, the
>>> delayed standby was replicated after exactly 5 minutes. I did not
>>> notice any problems, errors or warnings.
>>>
>>
>> Thanks for your review Christian...
>
> So, I proposed this patch previously and I still think it's a good
> idea, but it got voted down on the grounds that it didn't deal with
> clock drift.  I view that as insufficient reason to reject the
> feature, but others disagreed.  Unless some of those people have
> changed their minds, I don't think this patch has much future here.
>

I would agree that it is a good idea.

Joshua D. Drake

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