[Rebuild] Getting underway before 1st April
frederik at remote.org
Wed Feb 1 18:47:33 GMT 2012
On 01/31/2012 05:32 PM, Michael Collinson wrote:
> And following things logically through, then we want the magic
> consensus. May I therefore ask from a **purely technical point of
> view**, Does it make sense
> - (for me to continue) to persuade the community that the WTFE algo
> should be the basis of the transition
The WTFE algorithm does have a few unclear points though, e.g. the wiki
page on which people can flag users/changesets for marking them "clean".
LWG decision will be needed on what to do with that, if they just go
along with that or what.
> - that split/merged ways is the only point of contention that could make
> any potential real difference
We can get them into WTFE one way or another. Pre-0.5 history is another
one of those "little effect but would have to be done for completeness"
> - that the WTFE "rules" could indeed by mapped into scripts that
> actually altered the database.
They likely can, but it is not yet clear whether we will have something
that actually alters an existing database rather than just rebuilding
I would also feel very relieved if somebody would start from a clean
slate and come up with an algorithm to determine "what is clean", run it
on a full history file and compare results with what I have. I mean,
this is just stuff I hacked up on a weekend! There surely should be
*some* quality assurance?
> - and that the resulting map would look almost exactly the same as the
> CleanMap Simon is publishing now?
I think that Simon is making a number of assumptions that we would not
get away with, notably that if a way is clean then we can always use all
its nodes no matter what. So the map paints a rosier picture than what
we will have.
BTW, from a purely technical point of view, I believe that having a few
months more would ensure an altogether better license change. It's ok to
stick to April 1st for a while to convey the urgency, but I have a
feeling that a lot of things will only be half done by then.
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