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Re: We should Axe /contrib/start-scripts

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: "Kevin Grittner" <Kevin(dot)Grittner(at)wicourts(dot)gov>
Cc: "Josh Berkus" <josh(at)agliodbs(dot)com>, "Alvaro Herrera" <alvherre(at)commandprompt(dot)com>, "Chander Ganesan" <chander(at)otg-nc(dot)com>, "PostgreSQL-development" <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: We should Axe /contrib/start-scripts
Date: 2009-08-25 22:03:30
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Lists: pgsql-hackers
"Kevin Grittner" <Kevin(dot)Grittner(at)wicourts(dot)gov> writes:
> Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote: 
>> stuff like vacuum scripts could surely be run from a different
>> userid.
> My first thought was "they have to run as the database superuser." 
> (In our case, that is the same as the OS user running the cluster.)
> But that's wrong, of course.  They have to run as *a* database
> superuser.  We could fix that.

Well, the database userid needn't be the same as the OS userid.
Even if you're using ident auth, you could provide an identmap
to allow the vacuum-user to log in as the database superuser.

> Still, this seems like it's not as deterministic as it should be.  Is
> there any reasonable way to pin it down beyond the PID?  Like also
> saving a start time into the file and checking that it
> maches the start time of the PID found?

How would you get the latter in a portable fashion?  (Do not mention
ps please ... and I don't want to hear about lsof either ...)

			regards, tom lane

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