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Re: 2GB limit of FSFS?

From: Dave Camp <dave_at_thinbits.com>
Date: 2005-12-13 17:50:55 CET

Supposedly, building with APR 1.x (whatever the latest is) will take
care of this.

Dave

On Dec 13, 2005, at 3:18 AM, Patrik Rak wrote:

> Hi!
>
> If it's not an already known and/or fixed misfeature, I would like
> to report a problem with the 2GB limit of the FSFS filesystem. I
> tried both 1.1.4 from Debian stable as well as the 1.2.3 from
> backports.org and both versions freak out when the rev file hits
> the 2GB limit during the transaction (on ReiserFS, which doesn't
> have the 2GB limit itself).
>
> Little background - I tried to test the SVN a bit before putting it
> in production so I took few of our CVS modules and tried to import
> them into SVN. One of the modules was about 8GB of data assets in
> about 20000 files, which makes suitable test bed.
>
> The performance with DB filesystem was terrible, the commit took
> more than 2 hours, while the CVS is able to tag (i.e., read and
> write) the entire module in about 20 minutes). Not to mention that
> I got the database wedged in almost no time (just issuing lstxns
> during a running commit), which is something I can't allow to
> happen in production. Also I wasn't really comfortable with the
> idea of having single binary >8GB file holding all of our valuable
> files...
>
> So I tried to redump the repository to fsfs, but it crashed without
> any error message when the rev file in the transaction subdir hit
> the 2GB limit. Well, I simply deleted everything and did a new
> commit, this time in chunks smaller than 2GB. This time it seems to
> work fine and gives us a reasonable performance, we will see how it
> turns out once the history starts to build up.
>
> The 2GB limit is not an issue for us during the normal use in most
> cases, but if someone has time it would be nice to get it fixed
> before someone else burns himself due this problem.
>
> Regards,
>
> Patrik Rak
>
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Received on Tue Dec 13 18:33:40 2005

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