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Re: Clean shutdown and warm standby

From: Guillaume Smet <guillaume(dot)smet(at)gmail(dot)com>
To: Simon Riggs <simon(at)2ndquadrant(dot)com>
Cc: Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Andreas Pflug <pgadmin(at)pse-consulting(dot)de>, Fujii Masao <masao(dot)fujii(at)gmail(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Clean shutdown and warm standby
Date: 2009-05-28 16:16:35
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-hackers
On Thu, May 28, 2009 at 6:06 PM, Simon Riggs <simon(at)2ndquadrant(dot)com> wrote:
> On Thu, 2009-05-28 at 17:50 +0200, Guillaume Smet wrote:
>> I think it's a step forward, maybe not sufficient for you but I prefer
>> the situation now than before. It's safer because of the principle of
>> least surprise: I'm pretty sure a lot of people didn't even think that
>> the last WAL file was systematically missing.
> If I hadn't spoken out, I think you would have assumed you were safe and
> so would everybody else. Time is saved only if you perform the step
> manually - if time saving was your objective you should have been using
> a script in the first place. If you're using a script, carry on using
> it: nothing has changed, you still need to check.

You might think that but I won't have. I will still monitor my log
files carefully and check the last WAL file is received and treated on
the slave as I currently do.

I prefer checking it visually than using a script.

At least, now, I have a chance to have it working without a manual intervention.

> It's good you submitted a patch, I have no problem there, BTW, but
> applying a patch during beta, should either fix the problem or not be
> applied at all.

Well, I don't think we'll agree on that. Anyway, have a nice day :).


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