Re: graceful reload

From: Vasiliy G Tolstov <v(dot)tolstov(at)selfip(dot)ru>
To: Greg Smith <greg(at)2ndquadrant(dot)com>
Cc: Shoaib Mir <shoaibmir(at)gmail(dot)com>, Anh Ky Huynh <xkyanh(at)gmail(dot)com>, PostgreSQL Admin <pgsql-admin(at)postgresql(dot)org>
Subject: Re: graceful reload
Date: 2010-06-04 06:07:12
Message-ID: 1275631632.28777.0.camel@work.selfip.ru
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В Чтв, 03/06/2010 в 13:07 -0400, Greg Smith пишет:
> Vasiliy G Tolstov wrote:
> > In config file some in of this settings exists comment line like
> > "changes require restart". This is mean exactly restart or reload can do
> > this?
> >
>
> Run this:
>
> $ psql -c "select name,context from pg_settings"
>
> This will sort out which settings are in which category definitively,
> rather than relying on the sometimes ambiguous comments in the file.
> Settings that say "postmaster" require a full database restart. Ones
> labeled "sighup" can be changed in the postgresql.conf and then the
> server signaled to use them, most easily with:
>
> pg_ctl reload
> -OR-
> psql -c "select pg_reload_conf()"
>
> Ones labeled "user" you can actually change for any user at any time
> during their session. Modifying the defaults and then executing the
> sighup procedure will make those new defaults active, but not for any
> clients that already have open connections.
>
> I recommend using SHOW or looking at pg_settings after making a change
> and reloading the server config to confirm it took.
>

Ok, Thank You very much! This is really helpful.

--
Vasiliy G Tolstov <v(dot)tolstov(at)selfip(dot)ru>
Selfip.Ru

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