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Re: pg_ctl idempotent option

From: "Dickson S(dot) Guedes" <listas(at)guedesoft(dot)net>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, Peter Eisentraut <peter_e(at)gmx(dot)net>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: pg_ctl idempotent option
Date: 2013-01-15 10:14:36
Message-ID: (view raw or whole thread)
Lists: pgsql-hackers
2013/1/14 Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>:
> Alvaro Herrera <alvherre(at)2ndquadrant(dot)com> writes:
>> Tom Lane wrote:
>>> Peter Eisentraut <peter_e(at)gmx(dot)net> writes:
>>>> Here is a patch to add an option -I/--idempotent to pg_ctl, the result
>>>> of which is that pg_ctl doesn't error on start or stop if the server is
>>>> already running or already stopped.
>>> Idempotent is a ten-dollar word.  Can we find something that average
>>> people wouldn't need to consult a dictionary to understand?
>> --no-error perhaps?
> Meh, that's probably going too far in the direction of imprecision.
> The point of this patch is that only very specific errors are
> suppressed.
> I don't have a better idea though.  It'd be easier if there were
> separate switches for the two cases, then you could call them
> --ok-if-running and --ok-if-stopped.  But that's not very workable,
> if only because both would want the same single-letter abbreviation.



Dickson S. Guedes
mail/xmpp: guedes(at)guedesoft(dot)net - skype: guediz -

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