Re: pg11.1: dsa_area could not attach to segment

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От Thomas Munro
Тема Re: pg11.1: dsa_area could not attach to segment
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Msg-id CAEepm=2k=DXA56KEeRq05c2xSpdM5Kw4i-GG_MtzMXcnOkEnDA@mail.gmail.com
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Ответ на Re: pg11.1: dsa_area could not attach to segment  (Thomas Munro <thomas.munro@enterprisedb.com>)
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On Tue, Feb 12, 2019 at 4:27 PM Thomas Munro
<thomas.munro@enterprisedb.com> wrote:
> On Tue, Feb 12, 2019 at 4:01 PM Justin Pryzby <pryzby@telsasoft.com> wrote:
> > On Mon, Feb 11, 2019 at 08:43:14PM -0600, Justin Pryzby wrote:
> > > I have a suspicion that this doesn't happen if
> > > parallel_leader_participation=off.
> >
> > I think this is tentatively confirmed..I ran 20 loops for over 90 minutes with
> > no crash when parallel_leader_participation=off.
> >
> > On enabling parallel_leader_participation, crash within 10min.
>
> That's quite interesting.  I wonder if it's something specific about
> the leader's behaviour, or if it's just because it takes one more
> process to hit the bad behaviour on your system.

.  o O ( is there some way that getting peppered with signals from the
shm tuple queue machinery could break something here? )

-- 
Thomas Munro
http://www.enterprisedb.com


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