Re: pg_stop_backup does not complete

Tom Lane <tgl@sss.pgh.pa.us>

From: Tom Lane <tgl@sss.pgh.pa.us>
To: Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>
Cc: Josh Berkus <josh@agliodbs.com>, Simon Riggs <simon@2ndQuadrant.com>, PostgreSQL-development <pgsql-hackers@postgresql.org>
Date: 2010-02-24T21:01:02Z
Lists: pgsql-hackers
Heikki Linnakangas <heikki.linnakangas@enterprisedb.com> writes:
> Josh Berkus wrote:
>> OK, so we need a way out of that cycle if the user is issuing
>> pg_stop_backup because they *already know* that archive_command is
>> failing.  Right now, there's no way out other than a fast shutdown,

> Sure there is. Just kill the session, Ctrl-c or similar.
> pg_stop_backup() isn't actually doing anything at that point anymore;
> it's just waiting for the files to be archived before returning.

One objection to this is that it's not very clear to the user when
pg_stop_backup has finished with actual work and is just waiting for the
archiver, ie when is it safe to hit control-C?  Maybe we should emit a
"backup done, waiting for archiver to complete" notice before entering
the sleep loop.

			regards, tom lane