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Re: Subversion and Very,Very Large Repositories

From: Vincent Starre <vstarre_at_comcast.net>
Date: 2006-03-01 02:28:52 CET

Phil Endecott wrote:

> Russ Brown wrote:
>
>>> In general, Subversion can handle very large repositories. The one
>>> scalability issue I am aware of is if you create a flat repository,
>>> that does not scale well.
>>
>>
>> I'm not sure how this would make a difference. FSFS doesn't store the
>> files in the repository in physical folders on the disk: only as a
>> series of revisions. From what I remember, filesystem lookup performance
>> becomes a potential issue for fsfs only when you have a very large
>> number of revisions: not when you have a a flat file structure in the
>> repository.
>>
>> Or does the Subversion filesystem have a similar lookup performance
>> issue?
>
>
> IIRC, the FSFS revision file contains a small amount of data for every
> file in a directory where some files have changed, even for files that
> have not changed. If you have a directory with many thousands of
> files, this can become an issue.
>
> --Phil.

May be worth noting: I don't think svn support holding a repos across
multiple filesystems. While it's likely anyone dealing in TBs has a nice
array, you could be in trouble if you dont.

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Received on Wed Mar 1 02:29:49 2006

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