Re: smart shutdown at end of transaction (was: Default mode for shutdown) - Mailing list pgsql-hackers

From Simon Riggs
Subject Re: smart shutdown at end of transaction (was: Default mode for shutdown)
Date
Msg-id CA+U5nM+YsW5t+gUft=0+_KxnmSwBDie8wSRMuiDm=9h-GzJkzw@mail.gmail.com
Whole thread Raw
In response to Re: smart shutdown at end of transaction (was: Default mode for shutdown)  (Tom Lane <tgl@sss.pgh.pa.us>)
Responses Re: smart shutdown at end of transaction (was: Default mode for shutdown)  (Andres Freund <andres@anarazel.de>)
Re: smart shutdown at end of transaction (was: Default mode for shutdown)  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-hackers
On Fri, Apr 27, 2012 at 7:29 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Robert Haas <robertmhaas@gmail.com> writes:
>> On Wed, Dec 15, 2010 at 10:11 AM, Alvaro Herrera
>> <alvherre@commandprompt.com> wrote:
>>> It occurs to me that we may need a new mode, which disconnects sessions
>>> that are not in a transaction (or as soon as they are) but leaves
>>> in-progress transactions alone; this could be the new default.  Of
>>> course, this is much more difficult to implement than the current modes.
>
>> This idea appeared to have some support.  I'd like to suggest that we
>> take this a step further.  Instead of adding a fourth mode, I'd like
>> to suggest that we redefine "smart" to have the behavior described
>> above.
>
> No, I'm not happy with that.  Smart shutdown is defined to not affect
> current sessions.  I'm fine with having a fourth mode that acts as you
> suggest (and, probably, even with making it the default); but not with
> taking away a behavior that people may well be relying on.

Agreed, but not sure what to call the new mode: "smarter"?

--
 Simon Riggs                   http://www.2ndQuadrant.com/
 PostgreSQL Development, 24x7 Support, Training & Services


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