Messages in this thread | ![/](/images/icornerl.gif) | | Date | Thu, 13 Mar 2003 00:38:09 +0100 | From | Pavel Machek <> | Subject | Re: BitBucket: GPL-ed KitBeeper clone |
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Hi!
> > [Long rant, summary: it's harder than you think, read on for the details] > [skipping long description] > > OK, so here is my distillation of Larry's post. > > Basic summary: a distributed, replicated, version controlled user level file > system with no limits on any of the file system events which may happened > in parallel. All changes must be put correctly back together, no matter how > much parallelism there has been. > > * Merging. > > * The graph structure. > > * Distributed rename handling. Centralized systems like Subversion don't > have as many problems with this because you can only create one file in > one directory entry because there is only one directory entry available. > In distributed rename handling, there can be an infinite number of different > files which all want to be src/foo.c. There are also many rename corner-cases. > > * Symbolic tags. This is adding a symbolic label on a revision. A distributed > system must handle the fact that the same symbol can be put on multiple > revisions. This is a variation of file renaming. One important thing to > consider is that time can go forward or backward. > > * Security semantics. Where should they go? How can they be integrated > into the system? How are hostile users handled when there is no central > server to lock down? > > * Time semantics. A distributed system cannot depend on reported time > being correct. It can go forward or backward at any rate. > > I'd be willing to maintain this as the beginning of a feature list and > post it regularly to lkml if enough people feel it would be useful and not > annoying. The goal would be to identify the features/problems that would
Actually, check it in bitbucket's repository on sf.net; it should not be annoying there. (He he "send it to the bitbucket" :-) Pavel -- Pavel Written on sharp zaurus, because my Velo1 broke. If you have Velo you don't need...
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