From: | Bruce Momjian <bruce(at)momjian(dot)us> |
---|---|
To: | Peter Eisentraut <peter_e(at)gmx(dot)net> |
Cc: | Fujii Masao <masao(dot)fujii(at)gmail(dot)com>, "Mr(dot) Aaron W(dot) Swenson" <titanofold(at)gentoo(dot)org>, pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: Bug with pg_ctl -w/wait and config-only directories |
Date: | 2011-10-03 18:23:47 |
Message-ID: | 201110031823.p93INlq29708@momjian.us |
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Lists: | pgsql-hackers |
Peter Eisentraut wrote:
> On m?n, 2011-10-03 at 11:27 -0400, Bruce Momjian wrote:
> > Frankly, I am confused how this breakage has gone unreported for so
> > long.
>
> Well, nobody is required to use pg_ctl, and for the longest time, it was
> pg_ctl that was considered to be broken (for various other reasons) and
> avoided in packaged init scripts.
Yes, but I am now seeing that pg_ctl is really unfixable. Is the
config-only directory really a valuable feature if pg_ctl does not work?
If we could document that pg_ctl (and pg_upgrade) doesn't work with
config-only directories, at least we would have a consistent API. The
question is whether the config-only directory is useful with this
restriction. Are people recording the postmaster pid somewhere when
they start it? I doubt they are parsing the connection information we
added to postmaster.pid in 9.1. Are they manually going into the
postmaster.pdi file and grabbing the first line?
> Arguably, if push came to shove, pg_upgrade wouldn't really need to use
> pg_ctl either.
It would have to implement the 'wait' mode inside pg_upgrade, and in
other applications that needs that behavior.
--
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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