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Re: [PATCH] Implement sharding for FSFS

From: Malcolm Rowe <malcolm-svn-dev_at_farside.org.uk>
Date: 2007-04-16 15:31:24 CEST

On Mon, Apr 16, 2007 at 12:58:03PM +0000, Mattias Engdegård wrote:
> Note that with this single-level sharding scheme we are getting closer
> to another limit present in many Unix systems where the inode link
> count is 16 bit wide: 32767 subdirectories in a single directory.

Out of interest, how common is this? I know it was true for original
Unices, but I thought (without any justification, I admit) that modern
Unices had done away with it.

In any case, this only becomes a problem at c. 32 million revisions. I
don't know of _any_ organisation that's even considering that size of
repository at the moment... and when they are, they can switch to a
shard-by-10,000 scheme, for example. The 1,000 figure is just the


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Received on Mon Apr 16 15:31:32 2007

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