Re: Race condition in InvalidateObsoleteReplicationSlots()

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От Tom Lane
Тема Re: Race condition in InvalidateObsoleteReplicationSlots()
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Msg-id 1425810.1624130210@sss.pgh.pa.us
обсуждение исходный текст
Ответ на Re: Race condition in InvalidateObsoleteReplicationSlots()  (Álvaro Herrera <alvherre@alvh.no-ip.org>)
Ответы Re: Race condition in InvalidateObsoleteReplicationSlots()  (Tom Lane <tgl@sss.pgh.pa.us>)
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=?utf-8?Q?=C3=81lvaro?= Herrera <alvherre@alvh.no-ip.org> writes:
> It occurred to me that this could be made better by sigstopping both
> walreceiver and walsender, then letting only the latter run; AFAICS this
> makes the test stable.  I'll register this on the upcoming commitfest to
> let cfbot run it, and if it looks good there I'll get it pushed to
> master.  If there's any problem I'll just remove it before beta2 is
> stamped.

Hmm ... desmoxytes has failed this test once, out of four runs since
it went in:

https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=desmoxytes&dt=2021-06-19%2003%3A06%3A04

None of the other animals that have reported in so far are unhappy.
Still, maybe that's not a track record we want to have for beta2?

I've just launched a run on gaur, which given its dinosaur status
might be the most likely animal to have an actual portability problem
with this test technique.  If you want to wait a few hours to see what
it says, that'd be fine with me.

            regards, tom lane



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