From: | Guillaume Cottenceau <gc(at)mnc(dot)ch> |
---|---|
To: | Matthew Wakeling <matthew(at)flymine(dot)org> |
Cc: | "pgsql-performance\(at)postgresql(dot)org" <pgsql-performance(at)postgresql(dot)org> |
Subject: | Re: which ext3 fs type should I use for postgresql |
Date: | 2008-05-15 15:32:37 |
Message-ID: | 87r6c3wpka.fsf@mnc.ch |
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Lists: | pgsql-performance |
Matthew Wakeling <matthew 'at' flymine.org> writes:
> On Thu, 15 May 2008, Guillaume Cottenceau wrote:
>> Also, IIRC when PG writes data up to a full filesystem,
>> postmaster won't be able to then restart if the filesystem is
>> still full (it needs some free disk space for its startup).
>>
>> Or maybe this has been fixed in recent versions?
>
> Ah, the "not enough space to delete file, delete some files and try
> again" problem. Anyway, that isn't relevant to the reserved
> percentage, as that will happen whether or not the filesystem is 5%
> smaller.
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.
--
Guillaume Cottenceau
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