From: Adrian Klaver <adrian.klaver@aklaver.com>
To: postggen2020 s <postggen2020@gmail.com>
Cc: pgsql-general@postgresql.org
Cc: pgsql-admin@postgresql.org
Subject: Re: Reset DB stats suggestion pg_stat_reset()
Date: Sun, 23 Feb 2020 10:19:34 -0800
Message-ID: <ca20d549-5ad1-b83a-b169-1f436a9e10e2@aklaver.com> (raw)
In-Reply-To: <CAJ=omAhbyW3V5vxjcHqeD9MPkGipsvJcviVEjALamwN5C2BvMg@mail.gmail.com>
References: <CAJ=omAg4ZaCpC4gaE8GM8w7vHf+gVF1z_TYCjV=koAaqaF23Cw@mail.gmail.com>
<e9e9e02d-7df5-60e9-c101-3208716bc00d@aklaver.com>
<CAJ=omAhbyW3V5vxjcHqeD9MPkGipsvJcviVEjALamwN5C2BvMg@mail.gmail.com>
On 2/22/20 6:40 PM, postggen2020 s wrote:
> Thanks Adrian.
> I am aware about the functions. Here need is, can we use this?.or is
> there any known effects after firing the functions?.
Yes the stats counters will be reset to 0, which means the planner will
not have accurate statistics to work with. That can be corrected with an
ANALYZE. The questions I have are:
What is the issue you are trying to deal with?
Also why do you think resetting the stats will fix it?
>
> Thanks,
> Postgann.
>
> On Sat, Feb 22, 2020 at 10:47 PM Adrian Klaver
> <adrian.klaver@aklaver.com <mailto:adrian.klaver@aklaver.com>> wrote:
>
> On 2/22/20 12:26 AM, postggen2020 s wrote:
> > Hi Team,
> >
> > Good Afternoon,
> >
> > We have seen some deadlocks and tempfile count in
> pg_stat_database view.
> > We are trying to reset the stats.
> > Can we use pg_stat_reset() function to reset these stats without any
> > impact stats of databases.
> > Please advise the process to reset the stats.
>
> See here:
>
> https://www.postgresql.org/docs/12/monitoring-stats.html
>
> Table 27.20. Additional Statistics Functions
>
> It details what your options are.
>
> >
> > Thanks.
> > Postggen.
>
>
> --
> Adrian Klaver
> adrian.klaver@aklaver.com <mailto:adrian.klaver@aklaver.com>
>
--
Adrian Klaver
adrian.klaver@aklaver.com
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To: pgsql-admin@postgresql.org
Cc: adrian.klaver@aklaver.com, postggen2020@gmail.com, pgsql-general@postgresql.org
Subject: Re: Reset DB stats suggestion pg_stat_reset()
In-Reply-To: <ca20d549-5ad1-b83a-b169-1f436a9e10e2@aklaver.com>
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