Re: [SQL] zombie postmasters

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От wieck@debis.com (Jan Wieck)
Тема Re: [SQL] zombie postmasters
Дата
Msg-id m11o0QW-0003kLC@orion.SAPserv.Hamburg.dsh.de
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Ответ на Re: [SQL] zombie postmasters  (Tom Lane <tgl@sss.pgh.pa.us>)
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>
> "Hamid Khoshnevis" <hamid@emarq.com> writes:
> > In a web environment, a user can repeatedly starts and abort large queries
> > which create a large number of zombie postmasters.
>
> It shouldn't be possible for there to be zombie postgres processes ---
> the postmaster process should reap dead backends more or less instantly.
> Either your postmaster is getting wedged somehow, or there is a
> configure/install problem that has broken the postmaster's handling
> of child-process exit.  What platform are you using, exactly?  What
> if anything shows up in the postmaster log when this happens?

    No, Tom.

    It  confused  me  too first. But with Zombie, he didn't meant
    what you and me think a Zombie is. And it  aren't  postmaster
    ones,  it  are  regular  backends that still run a huge query
    where the client is already gone.


Jan

--

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#========================================= wieck@debis.com (Jan Wieck) #

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