From: Andres Freund <andres@anarazel.de>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: Jeff Janes <jeff.janes@gmail.com>
Cc: Michael Paquier <michael.paquier@gmail.com>
Cc: PostgreSQL mailing lists <pgsql-hackers@postgresql.org>
Subject: Re: Reducing pg_ctl's reaction time
Date: Mon, 26 Jun 2017 13:33:47 -0700
Message-ID: <20170626203347.6efkdwiadyt33edy@alap3.anarazel.de> (raw)
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On 2017-06-26 16:26:00 -0400, Tom Lane wrote:
> Andres Freund <andres@anarazel.de> writes:
> > On 2017-06-26 16:19:16 -0400, Tom Lane wrote:
> >> Sure, what do you think an appropriate behavior would be?
>
> > It'd not be unreasonble to check pg_control first, and only after that
> > indicates readyness check via the protocol.
>
> Hm, that's a thought. The problem here isn't the frequency of checks,
> but the log spam.
Right. I think to deal with hot-standby we'd probably have to add new
state to the control file however. We don't just want to treat the
server as ready once DB_IN_PRODUCTION is reached.
Arguably we could and should improve the logic when the server has
started, right now it's pretty messy because we never treat a standby as
up if hot_standby is disabled...
- Andres
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Cc: andres@anarazel.de, tgl@sss.pgh.pa.us, jeff.janes@gmail.com, michael.paquier@gmail.com
Subject: Re: Reducing pg_ctl's reaction time
In-Reply-To: <20170626203347.6efkdwiadyt33edy@alap3.anarazel.de>
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