Re: WC-NG

Hi Hyrum,

Thanks for this. I will continue inline if you allow.

> The default (and only method supported in 1.7) will be a .svn directory at the root of the working copy. As with previous versions of Subversion, please don't manually move or edit the contents of the .svn directory.
>
My intention was not to move .svn, but the whole working copy as per the
topic below. However, in the new model, an administrator will have some
difficulty in: 1) finding the root of working copy other way than by 'cd
../../../' , 2) determining easily that a random disk location is a part
of some working copy or not. Of course it is a trade off against much
more important goals, but I just want to have a confirmation, that this
will be the case in 1.7.*.

>> ... or putting things differently. Let's say, there is a team of 100 people somewhere in Europe awaiting an access to a 250 GB repository somewhere in Australia. What to do to avoid 100 check-outs? Assume the repository contains binary data and must be checked out in full. Slave with http-based proxy is not an option (until svn+ssh-based proxy is invented).
>>
>
> This is a valid concern. The complete behavior is still unknown (see statement above).
>
> Eventually (but not in 1.7), we plan on letting users share the pristine data store, which would avoid this problem.
Yes, I have seen this, too. However, the above described deployment
model, while it is not a best practice, I am positive it is excercised
frequently throughout the world due to lack of multi-site replication.
Removing this option before shared working copies see the light may
create some chaos. Therefore I would suggest providing some bridging
solution, that for example could be a new 'svn cleanup --relocate' or
whatever else. I am not a developer, but it seems easy enough to throw in.

> SQLite actually *removes* points of failure. Instead of our custom on-disk data format (which has had to be continually updated and improved), we let SQLite do that for us. SQLite is well-tested, widely used, and provides atomicity semantics which are very useful to Subversion. Instead of re-inventing the wheel, we can use a much better engineered wheel
>
Seems OK. I didn't know you were changing format frequently, thought is
was set in stone.

Cheers,
Radomir

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Received on 2010-02-16 15:50:10 CET