From: | Atul Kumar <akumar14871(at)gmail(dot)com> |
---|---|
To: | Laurenz Albe <laurenz(dot)albe(at)cybertec(dot)at> |
Cc: | pgsql-general <pgsql-general(at)lists(dot)postgresql(dot)org> |
Subject: | Re: vacuumdb not letting me connect to db |
Date: | 2021-02-04 17:00:20 |
Message-ID: | CA+ONtZ7L54XXOq4_ZgkTRCP2VGdc-1q4aTTEADaUjkg9ZC6jaA@mail.gmail.com |
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Lists: | pgsql-general |
Hi,
The CPU and RAM are normal even on 300 jobs ( only 1-4% of consumption) but
I don’t understand one thing here that if max_connections is set to 700
then why I am not able to connect the db.
As the running jobs (300) are lesser than half of max_connections.
Regards
Atul
On Thursday, February 4, 2021, Laurenz Albe <laurenz(dot)albe(at)cybertec(dot)at>
wrote:
> On Thu, 2021-02-04 at 16:56 +0530, Atul Kumar wrote:
> > I have 160 GB of RAM, postgres 9.6 is running on the server.
> >
> > after upgrade I ran the below command:
> >
> > "/usr/edb/as9.6/bin/vacuumdb" -U 'enterprisedb' --verbose --all -j 300
> > --analyze-only
> >
> > after running that command I was not able to connect the database
> > using psql for few minutes.
>
> That is to be expected.
>
> If you have 300 processes performing I/O and using CPU, your machine
> will vertainly be overloaded.
>
> Yours,
> Laurenz Albe
> --
> Cybertec | https://www.cybertec-postgresql.com
>
>
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