From: | Jakub Glapa <jakub(dot)glapa(at)gmail(dot)com> |
---|---|
To: | pryzby(at)telsasoft(dot)com |
Cc: | pgsql-performance(at)postgresql(dot)org |
Subject: | Re: dsa_allocate() faliure |
Date: | 2018-11-26 15:26:45 |
Message-ID: | CAJk1zg0pdKJzH6=gDOK52SfLkbNTT=jBkRneCEzDNCEPPBVo6g@mail.gmail.com |
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Lists: | pgsql-hackers pgsql-performance |
So, the issue occurs only on production db an right now I cannot reproduce
it.
I had a look at dmesg and indeed I see something like:
--
regards,
pozdrawiam,
Jakub Glapa
On Fri, Nov 23, 2018 at 5:10 PM Justin Pryzby <pryzby(at)telsasoft(dot)com> wrote:
> On Fri, Nov 23, 2018 at 03:31:41PM +0100, Jakub Glapa wrote:
> > Hi Justin, I've upgrade to 10.6 but the error still shows up:
> >
> > If I set it to max_parallel_workers=0 I also get and my connection is
> being
> > closed (but the server is alive):
> >
> > psql db(at)host as user => set max_parallel_workers=0;
>
> Can you show the plan (explain without analyze) for the nonparallel case?
>
> Also, it looks like the server crashed in that case (even if it restarted
> itself quickly). Can you confirm ?
>
> For example: dmesg |tail might show "postmaster[8582]: segfault [...]" or
> similar. And other clients would've been disconnected. (For example,
> you'd
> get an error in another, previously-connected session the next time you
> run:
> SELECT 1).
>
> In any case, could you try to find a minimal way to reproduce the problem
> ? I
> mean, is the dataset and query small and something you can publish, or can
> you
> reproduce with data generated from (for example) generate_series() ?
>
> Thanks,
> Justin
>
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