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Message-ID: <1382922273.6932.50.camel@heisenberg.scientia.net>
Subject: Re: XATTRs in NFS?
From: Christoph Anton Mitterer <calestyo@scientia.net>
To: "Myklebust, Trond" <Trond.Myklebust@netapp.com>
Cc: Mailing List Linux NFS <linux-nfs@vger.kernel.org>,
        Dr Fields James Bruce <bfields@fieldses.org>
Date: Mon, 28 Oct 2013 02:04:33 +0100
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On Mon, 2013-10-28 at 00:44 +0000, Myklebust, Trond wrote:
> If you have lots of small files, and you really do need to associate them=
 uniquely with the checksum, then try something like:
>=20
> 	ln <filename> /path/to/database/<SHA512 identifier>.<inode number>
>=20
> Hard links and inode numbers are also generally invariant under 'mv'.

Well that seems like a workaround, IMHO not like a real solution,...
since when you remove <filename> the file will stay due
to /path/to/database/<SHA512 identifier>.<inode number> .

Of course you can run regular scrubbing jobs, which remove
and /path/to/database/<SHA512 identifier>.<inode number> for which the
link count is one.


Anyway as said, IMHO it's a (nice) workaround which I haven't thought
of, admittedly, but not a clean solution... and AFAICS it fixes only my
personal use case.

Cheers,
Chris.

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