From: Kevin Grittner <kgrittn@ymail.com>
To: Robert Haas <robertmhaas@gmail.com>
To: Fabrízio Mello <fabriziomello@gmail.com>
Cc: Christian Kruse <christian@2ndquadrant.com>
Cc: Pgsql Hackers <pgsql-hackers@postgresql.org>
Subject: Re: Time-Delayed Standbys
Date: Wed, 4 Dec 2013 07:22:02 -0800 (PST)
Message-ID: <1386170522.33753.YahooMailNeo@web162901.mail.bf1.yahoo.com> (raw)
In-Reply-To: <CA+TgmoapcHW_z6aJ_rxmf8MDxxrp+Yn6c3OTeXoEEstw7v+w8g@mail.gmail.com>
References: <CAFcNs+oXq5ZPaKARRn3VZGzX+AnTZCaEjR6VmQT_tvoFiqgaSg@mail.gmail.com>
<52984711.8040806@lab.ntt.co.jp>
<CAFcNs+oNDqVQ7GZXGxCLiGk2o1xdy=FnhR4QAMjJ_BvfR8BmAg@mail.gmail.com>
<20131203163302.GA18669@achilles.fritz.box>
<CAFcNs+qF-Jm91=QLsaXnvH4OD97CbU83a-dBVsi=92s=ZDHAUw@mail.gmail.com>
<CA+TgmoapcHW_z6aJ_rxmf8MDxxrp+Yn6c3OTeXoEEstw7v+w8g@mail.gmail.com>
List-Unsubscribe: <mailto:majordomo@postgresql.org?body=unsub%20pgsql-hackers>
Robert Haas <robertmhaas@gmail.com> wrote:
> 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.
There are many things that a system admin can get wrong. Failing
to supply this feature because the sysadmin might not be running
ntpd (or equivalent) correctly seems to me to be like not having
the software do fsync because the sysadmin might not have turned
off write-back buffering on drives without persistent storage.
Either way, poor system management can defeat the feature. Either
way, I see no reason to withhold the feature from those who manage
their systems in a sane fashion.
--
Kevin Grittner
EDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
--
Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-hackers
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Reply to all the recipients using the --to and --cc options:
reply via email
To: pgsql-hackers@postgresql.org
Cc: kgrittn@ymail.com, robertmhaas@gmail.com, fabriziomello@gmail.com, christian@2ndquadrant.com
Subject: Re: Time-Delayed Standbys
In-Reply-To: <1386170522.33753.YahooMailNeo@web162901.mail.bf1.yahoo.com>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox