Re: background worker and normal exit

On 2013-05-28 10:33:47 -0400, Robert Haas wrote:
> On Tue, May 28, 2013 at 10:31 AM, Andres Freund <andres@2ndquadrant.com> wrote:
> > On 2013-05-28 10:23:46 -0400, Robert Haas wrote:
> >> On Sun, May 26, 2013 at 6:48 PM, Michael Paquier
> >> > - set bgw_restart_time to BGW_NEVER_RESTART. and have the bgworler exit with
> >> > non-0 status code.
> >>
> >> That might be good enough, though.
> >
> > I suggested that to Fujii at pgcon, and it seems to work for him. But I
> > think this sucks since you loose support for a restart upon a FATAL or
> > similar error. And you cannot mark that as something non-fatal in the
> > log. To this day I laugh about the following oddity in the xorg log:
> >
> > [    30.087] (II) RADEON(0): RandR 1.2 enabled, ignore the following RandR disabled message.
> > [    30.088] (--) RandR disabled
> >
> > I really don't want to go there.
> >
> > You actually can only return a 1 since everything else will tear down
> > the whole cluster...
> >
> > We actually were discussing this recently:
> > http://archives.postgresql.org/message-id/20130423134833.GD8499%40alap2.anarazel.de
> >
> > I think a separate return code for "exited gracefully, don't restart"
> > would be a good idea.
> 
> Yeah.  Or maybe the restart-timing/restart-when logic should just
> apply to the exit(0) case as well.  Not sure what the downside of that
> would be.

Loosing the ability to restart a process where the reason for exiting
are non-fatal and shouldn't be logged noisily or are already logged. I
actually could use both capabilities.

Greetings,

Andres Freund

-- Andres Freund                       http://www.2ndQuadrant.com/PostgreSQL Development, 24x7 Support, Training &
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