Re: Could not shut down DB

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Nagy László Zsolt <gandalf(at)shopzeus(dot)com>
Cc: pgsql-admin(at)postgresql(dot)org
Subject: Re: Could not shut down DB
Date: 2016-05-30 16:43:11
Message-ID: 12880.1464626591@sss.pgh.pa.us
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=?UTF-8?Q?Nagy_L=c3=a1szl=c3=b3_Zsolt?= <gandalf(at)shopzeus(dot)com> writes:
> I could stop it with:
> pg_ctl stop -i i

> but before that:

> May 30 07:21:00 appserver postgres[65202]: [5-1] FATAL: the database
> system is shutting down
> May 30 07:21:00 appserver postgres[65203]: [5-1] FATAL: the database
> system is shutting down
> May 30 07:21:00 appserver postgres[65206]: [5-1] FATAL: the database
> system is shutting down

> It happened in the weekend, and the server log does not contain anything
> except these "FATAL: shutting down" messages, so I'm not able to tell
> when is started. Any idea what could possible cause this error?

Well, the default-until-recently "smart" shutdown mode would wait for
all existing sessions to finish, while not letting any new ones in.
That sure looks like what you have here.

regards, tom lane

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