Re: Active zombies at AIX

From: Konstantin Knizhnik <k(dot)knizhnik(at)postgrespro(dot)ru>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Active zombies at AIX
Date: 2017-01-24 15:42:36
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On 24.01.2017 18:26, Tom Lane wrote:
> Konstantin Knizhnik <k(dot)knizhnik(at)postgrespro(dot)ru> writes:
>> But ps shows that status of process is <existing>
>> [14:46:02]root(at)postgres:~ # ps -elk | grep 25691556
>> * A - 25691556 - - - - - <exiting>
> As far as I could find by googling, this means that the process is
> not actually a zombie yet, so it's not the postmaster's fault.
> Apparently it's possible in some versions of AIX for an exiting process to
> get stuck while releasing its reference to a socket, though I couldn't
> find much detail about that. I wonder how old your AIX is ...

It is AIX 7.1 (I expect that it is most recent version of AIX).

> regards, tom lane

Konstantin Knizhnik
Postgres Professional:
The Russian Postgres Company

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