Re: Remove fsync ON/OFF as a visible option?

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От Joshua D. Drake
Тема Re: Remove fsync ON/OFF as a visible option?
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Msg-id 550C7473.3030207@commandprompt.com
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Ответ на Re: Remove fsync ON/OFF as a visible option?  (Tom Lane <tgl@sss.pgh.pa.us>)
Ответы Re: Remove fsync ON/OFF as a visible option?  (Stephen Frost <sfrost@snowman.net>)
Re: Remove fsync ON/OFF as a visible option?  (Robert Haas <robertmhaas@gmail.com>)
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On 03/20/2015 10:45 AM, Tom Lane wrote:
> "Joshua D. Drake" <jd@commandprompt.com> writes:
>> There are just as many people that are running with scissors that are
>> now running (or attempting to run) our elephant in production.
>
> Evidence please.

Fair enough. I am not going to name names but over the years (and just 
today) I ran into another user that corrupted their database by turning 
off fsync.

>
>> Does it
>> make sense to remove fsync (and possibly full_page_writes) from such a
>> visible place as postgresql.conf?
>> I don't think we should remove the features themselves but perhaps only
>> have them settable via the new alter system command?
>
> I would object to that, because it would make it vastly more difficult
> to use fsync=off easily for development.

How so? alter system fsync on/off (meta)
restart

That seems easier than editing the file and restarting?

JD


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