Re: first impressions to git

From: Linus Torvalds <torvalds@osdl.org>
Date: Sep 18, 2005, 22:29 UTC
Message-ID: <Pine.LNX.4.58.0509181526220.9106@g5.osdl.org>
In-Reply-To: <20050918221125.GD22391@pasky.or.cz>

On Mon, 19 Sep 2005, Petr Baudis wrote:

> 
> I think it should actually never happen, updating the references should
> always come as the last thing in the push (or pull, for that matter)
> process.

It happens when you have several layers of non-git-aware stuff in between.

On kernel.org it happens occasionally with the mirroring, for example. I push something out while a mirror event is active, and the mirroring ends up finding the refs before the objects.

The same could happen with a write-back distributed networked filesystem, for example (not NFS, which is synchronous in metadata, but some other level of non-git-aware thing that doesn't necessarily maintain write ordering).

In general, git does the right thing for anything that honors write ordering, but the fact is, there are things that don't.

		Linus