Re: which ext3 fs type should I use for postgresql

On Thu, May 15, 2008 at 9:38 AM, Joshua D. Drake <jd@commandprompt.com> wrote:
> Guillaume Cottenceau wrote:
>>
>> Matthew Wakeling <matthew 'at' flymine.org> writes:
>
>> It is still relevant, as with 5% margin, you can afford changing
>> that to 0% with tune2fs, just the time for you to start PG and
>> remove some data by SQL, then shutdown and set the margin to 5%
>> again.
>>
>
> I find that if you actually reach that level of capacity failure it is due
> to lack of management and likely there is much lower hanging fruit left over
> by a lazy dba or sysadmin than having to adjust filesystem level parameters.
>
> Manage actively and the above change is absolutely irrelevant.

Sorry, but that's like saying that open heart surgery isn't a fix for
clogged arteries because you should have been taking aspirin everyday
and exercising.  It might not be the best answer, but sometimes it's
the only answer you've got.

I know that being able to drop the margin from x% to 0% for 10 minutes
has pulled more than one db back from the brink for me (usually
consulting on other people's databases, only once or so on my own) :)