Re: postgres uptime

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Alvaro Herrera <alvherre(at)dcc(dot)uchile(dot)cl>
Cc: Christopher Kings-Lynne <chriskl(at)familyhealth(dot)com(dot)au>, Gaetano Mendola <mendola(at)bigfoot(dot)com>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: postgres uptime
Date: 2004-08-20 03:05:52
Message-ID: 200408200305.i7K35qr15851@candle.pha.pa.us
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Added to TODO:

* Add a function that returns the 'uptime' of the postmaster

---------------------------------------------------------------------------

Alvaro Herrera wrote:
> On Fri, Aug 20, 2004 at 09:43:13AM +0800, Christopher Kings-Lynne wrote:
> > >It seems that there is no way to know the postgres
> > >uptime, a sort of uptime() function could be usefull.
> > >I had recently the necessity of detect a node fail over,
> > >and the only way I can do it with a SQL connection is asking
> > >the engine uptime. Of course I can do it with PS but
> > >now that windows version is out I believe a platform
> > >indipendent way is required. Any objection to add it ?
> >
> > That sounds like a cool idea to me, although I would suggest a function
> > pg_uptime() that returns an interval or something.
> >
> > However, adding a new function requires a re-initdb, so it's quite
> > unlikely this will be in for 8.0.
>
> Is the uptime kept internally anywhere? Or even the start time?
>
> If it is, it would be quite trivial to provide access to it, and there
> is at least one other thing to do "if we initdb" in the open items list
> for 8.0.
>
> --
> Alvaro Herrera (<alvherre[a]dcc.uchile.cl>)
> "El miedo atento y previsor es la madre de la seguridad" (E. Burke)
>
>
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> TIP 7: don't forget to increase your free space map settings
>

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