Re: Re: [BUGS] BUG #5650: Postgres service showing as stopped when in fact it is running

From: Bruce Momjian <bruce(at)momjian(dot)us>
To: Fujii Masao <masao(dot)fujii(at)gmail(dot)com>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Magnus Hagander <magnus(at)hagander(dot)net>, Ashesh Vashi <ashesh(dot)vashi(at)enterprisedb(dot)com>, Mark Llewellyn <mark_llewellyn(at)adp(dot)com>, pgsql-hackers(at)postgresql(dot)org, Sujeet Rajguru <sujeet(dot)rajguru(at)enterprisedb(dot)com>
Subject: Re: Re: [BUGS] BUG #5650: Postgres service showing as stopped when in fact it is running
Date: 2010-11-26 19:19:51
Message-ID: 201011261919.oAQJJp504942@momjian.us
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Fujii Masao wrote:
> On Fri, Nov 26, 2010 at 3:11 AM, Bruce Momjian <bruce(at)momjian(dot)us> wrote:
> > I have applied this patch, with modified wording of the "cannot connect"
> > case:
> >
> > ? ? ? ?$ pg_ctl -w -l /dev/null start
> > ? ? ? ?waiting for server to start.... done
> > ? ? ? ?server started
> > ? ? ? ?warning: ?could not connect, perhaps due to invalid authentication or
> > ? ? ? ?misconfiguration.
>
> This patch breaks the behavior that "pg_ctl -w start" waits until the standby
> has been ready to accept read-only queries. IOW, pg_ctl without this patch
> continues to check the connection even if the connection is rejected because
> the database has not been consistent yet. But pg_ctl with this patch treats
> that rejection as success of the standby starting and prints the above
> messages.
>
> I agree to treat the receipt of password request from the server as success
> of the server starting. But I don't think that we should treat other rejection
> cases that way and change the existing behavior.

OK, that is easy to fix. The only downside is that if you misconfigured
.pgpass (which is what I used for testing), you have to wait 60 seconds
to get the "cannot connect" error message. Is that OK?

--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com

+ It's impossible for everything to be true. +

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